Outputs (131)

A revised age greater than 50 Myr for the young cluster IC 4665 (2023)
Journal Article

IC 4665 is one of only a dozen young open clusters with a “lithium depletion boundary” (LDB) age. Using an astrometrically and spectroscopically filtered sample of cluster members, we show that both the positions of its low mass stars in Gaia absolut... Read More about A revised age greater than 50 Myr for the young cluster IC 4665.

The Gaia-ESO Survey: Homogenisation of stellar parameters and elemental abundances (2023)
Journal Article

The Gaia-ESO Survey is a public spectroscopic survey that targeted greater than or similar to 10(5) stars covering all major components of the Milky Way from the end of 2011 to 2018, delivering its final public release in May 2022. Unlike other spect... Read More about The Gaia-ESO Survey: Homogenisation of stellar parameters and elemental abundances.

The Gaia-ESO Survey: empirical estimates of stellar ages from lithium equivalent widths (eagles) (2023)
Journal Article

We present an empirical model of age-dependent photospheric lithium depletion, calibrated using a large homogeneously analysed sample of 6200 stars in 52 open clusters, with ages from 2 to 6000 Myr and -0.3 < [Fe/H] < 0.2, observed in the Gaia-ESO sp... Read More about The Gaia-ESO Survey: empirical estimates of stellar ages from lithium equivalent widths (eagles).

Mapping the distribution of OB stars and associations in Auriga (2023)
Journal Article

OB associations are important probes of recent star formation and Galactic structure. In this study, we focus on the Auriga constellation, an important region of star formation due to its numerous young stars, star-forming regions, and open clusters.... Read More about Mapping the distribution of OB stars and associations in Auriga.

The Gaia-ESO Survey: Preparing the ground for 4MOST and WEAVE galactic surveys (2023)
Journal Article

Context. Originating from several sources (Big Bang, stars, cosmic rays) and being strongly depleted during stellar lifetime, the lithium element is of great interest as its chemical evolution in the Milky Way is not yet well understood. To help cons... Read More about The Gaia-ESO Survey: Preparing the ground for 4MOST and WEAVE galactic surveys.

The Gaia-ESO Survey: Lithium measurements and new curves of growth (2022)
Journal Article

Context. The Gaia-ESO Survey (GES) is a large public spectroscopic survey that was carried out using the multi-object FLAMES spectrograph at the Very Large Telescope. The survey provides accurate radial velocities, stellar parameters, and elemental a... Read More about The Gaia-ESO Survey: Lithium measurements and new curves of growth.

The structure and 3D kinematics of vela OB2 (2022)
Journal Article

The kinematics of stars in OB associations can provide insights into their formation, dynamical evolution, and eventual fate. The low-mass stellar content of OB associations are sufficiently numerous as to provide a detailed sampling of their kinemat... Read More about The structure and 3D kinematics of vela OB2.

The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy (2022)
Journal Article

Context. In the last 15 years different ground-based spectroscopic surveys have been started (and completed) with the general aim of delivering stellar parameters and elemental abundances for large samples of Galactic stars, complementing Gaia astrom... Read More about The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy.

The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products star (2022)
Journal Article

Context. The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to obtain astrophysical parameters and elemental abundances for 100 000 stars, including large representative samples of the stellar populations in the Galaxy, and a w... Read More about The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products star.

A high resolution multi-object spectrograph for the VLT: a pre-concept design (2022)
Journal Article

Following the idea originally proposed during the ESO-Workshop The Very Large Telescope in 2030, the concept of a high resolution spectrograph for the VLT has been further explored, both for the science and technological aspects. Such an instrument w... Read More about A high resolution multi-object spectrograph for the VLT: a pre-concept design.

Low mass young stars in the Milky Way unveiled by DBSCAN and Gaia EDR3. Mapping the star forming regions within 1.5 Kpc (2022)
Journal Article

With an unprecedented astrometric and photometric data precision, Gaia EDR3 gives us, for the first time, the opportunity to systematically detect and map in the optical bands, the low mass populations of the star forming regions (SFRs) in the Milky... Read More about Low mass young stars in the Milky Way unveiled by DBSCAN and Gaia EDR3. Mapping the star forming regions within 1.5 Kpc.

The Gaia-ESO survey: Constraining evolutionary models and ages for young low mass stars with measurements of lithium depletion and rotation (2022)
Journal Article

A growing disquiet has emerged in recent years that standard stellar models are at odds with observations of the colour-magnitude diagrams (CMDs) and lithium depletion patterns of pre-main sequence stars in clusters. In this work we select 1246 high... Read More about The Gaia-ESO survey: Constraining evolutionary models and ages for young low mass stars with measurements of lithium depletion and rotation.

The Gaia-ESO Survey: Chemical tagging in the thin disk. Open clusters blindly recovered in the elemental abundance space (2022)
Journal Article

Context. The chemical makeup of a star provides the fossil information of the environment where it formed. Under this premise, it should be possible to use chemical abundances to tag stars that formed within the same stellar association. This idea -... Read More about The Gaia-ESO Survey: Chemical tagging in the thin disk. Open clusters blindly recovered in the elemental abundance space.

The Gaia-ESO Survey: Target selection of open cluster stars (2022)
Journal Article

Context. The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey, conducted with the multi-object spectrograph Fibre Large Array Multi Element Spectrograph (FLAMES) on the Very Large Telescope (European Southern Observatory, ESO,... Read More about The Gaia-ESO Survey: Target selection of open cluster stars.

The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics (2021)
Journal Article

Spectroscopy from the final internal data release of the Gaia-ESO Survey (GES) has been combined with Gaia EDR3 to assign membership probabilities to targets observed towards 63 Galactic open clusters and 7 globular clusters. The membership probabili... Read More about The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics.

The Gaia-ESO Survey: Galactic evolution of lithium from iDR6 (2021)
Journal Article

After more than 50 years, astronomical research still struggles to reconstruct the history of lithium enrichment in the Galaxy and to establish the relative importance of the various 7Li sources in enriching the interstellar medium (ISM) with this fr... Read More about The Gaia-ESO Survey: Galactic evolution of lithium from iDR6.

The Gaia-ESO survey: Mixing processes in low-mass stars traced by lithium abundance in cluster and field stars (2021)
Journal Article

We aim to constrain the mixing processes in low-mass stars by investigating the behaviour of the Li surface abundance after the main sequence. We take advantage of the data from the sixth internal data release of Gaia-ESO, idr6, and from the Gaia Ear... Read More about The Gaia-ESO survey: Mixing processes in low-mass stars traced by lithium abundance in cluster and field stars.

The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232 (2021)
Journal Article

Astrometry and photometry from {\it Gaia} and spectroscopic data from the {\it Gaia}-ESO Survey (GES) are used to identify the lithium depletion boundary (LDB) in the young cluster NGC 2232. A specialised spectral line analysis procedure was used to... Read More about The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232.

The effects of rotation on the lithium depletion of G- and K-dwarfs in Messier 35 (2020)
Journal Article

New fibre spectroscopy and radial velocities from the WIYN telescope are used to measure photospheric lithium in 242 high-probability, zero-age-main-sequence (ZAMS) F- to K-type members of the rich cluster M35. Combining these with published rotation... Read More about The effects of rotation on the lithium depletion of G- and K-dwarfs in Messier 35.

The Gaia-ESO Survey: Galactic evolution of lithium at high metallicity (2020)
Journal Article

Context. Reconstructing the Galactic evolution of lithium (Li) is the main tool used to constrain the source(s) of Li enrichment in the Galaxy. Recent results have suggested a decline in Li at supersolar metallicities, which may indicate reduced prod... Read More about The Gaia-ESO Survey: Galactic evolution of lithium at high metallicity.

The Gaia-ESO survey: the non-universality of the age-chemical-clocks-metallicity relations in the Galactic disc (2020)
Journal Article

Context. In the era of large spectroscopic surveys, massive databases of high-quality spectra coupled with the products of the Gaia satellite provide tools to outline a new picture of our Galaxy. In this framework, an important piece of information i... Read More about The Gaia-ESO survey: the non-universality of the age-chemical-clocks-metallicity relations in the Galactic disc.

The Gaia-ESO Survey: Membership probabilities for stars in 32 open clusters from 3D kinematics (2020)
Journal Article

The Gaia-ESO Survey (GES) observed many open clusters as part of its programme to spectroscopically characterise the various Milky Way populations. GES spectroscopy and Gaia astrometry from its second data release are used here to assign membership p... Read More about The Gaia-ESO Survey: Membership probabilities for stars in 32 open clusters from 3D kinematics.

The dynamics of the γ Vel cluster and nearby Vela OB2 association (2020)
Journal Article

The kinematics of low-mass stars in nearby OB associations can provide clues about their origins and evolution. Combining the precise positions, proper motions, and parallaxes given in the second Gaia Data Release with radial-velocity measurements ob... Read More about The dynamics of the γ Vel cluster and nearby Vela OB2 association.

A kinematically hot population of young stars in the solar neighbourhood (2020)
Journal Article

In the last three decades several hundred nearby members of young stellar moving groups (MGs) have been identified, but there has been less systematic effort to quantify or characterise young stars that do not belong to previously identified MGs. Usi... Read More about A kinematically hot population of young stars in the solar neighbourhood.

The Gaia-ESO Survey: detection and characterisation of single-line spectroscopic binaries (2020)
Journal Article

Context. Multiple stellar systems play a fundamental role in the formation and evolution of stellar populations in galaxies. Recent and ongoing large ground-based multi-object spectroscopic surveys significantly increase the sample of spectroscopic b... Read More about The Gaia-ESO Survey: detection and characterisation of single-line spectroscopic binaries.

The Gaia-ESO Survey: a new approach to chemically characterising young open clusters - I. Stellar parameters, and iron-peak, nd proton-capture elements (2020)
Journal Article

Context. Open clusters are recognised as excellent tracers of Galactic thin-disc properties. At variance with intermediate-age and old open clusters, for which a significant number of studies is now available, clusters younger than ?150 Myr have been... Read More about The Gaia-ESO Survey: a new approach to chemically characterising young open clusters - I. Stellar parameters, and iron-peak, nd proton-capture elements.

The Gaia-ESO survey: Calibrating the relationship between Age and the [C/N] abundance ratio with open clusters (2019)
Journal Article

Context: In the era of large high-resolution spectroscopic surveys such as Gaia-ESO and APOGEE, high-quality spectra can contribute to our understanding of the Galactic chemical evolution by providing abundances of elements that belong to the diffe... Read More about The Gaia-ESO survey: Calibrating the relationship between Age and the [C/N] abundance ratio with open clusters.

Expanding associations in the Vela-Puppis region - 3D structure and kinematics of the young population (2019)
Journal Article

Context. The Vela-Puppis region is known to host the Vela OB2 association as well as several young clusters featuring OB and pre-main-sequence stars. Several spatial and kinematic subgroups have been identified in recent years. Aims. By grouping star... Read More about Expanding associations in the Vela-Puppis region - 3D structure and kinematics of the young population.

The Gaia-ESO Survey: asymmetric expansion of the Lagoon Nebula cluster NGC 6530 from GES and Gaia DR2 (2019)
Journal Article

The combination of precise radial velocities from multi-object spectroscopy and highly accurate proper motions from Gaia DR2 opens up the possibility for detailed 3D kinematic studies of young star-forming regions and clusters. Here, we perform such... Read More about The Gaia-ESO Survey: asymmetric expansion of the Lagoon Nebula cluster NGC 6530 from GES and Gaia DR2.

The Gaia-ESO Survey: Age spread in the star forming region NGC 6530 from the HR diagram and gravity indicators (2019)
Journal Article

Context. In very young clusters, stellar age distribution is empirical proof of the duration of star cluster formation and thus it gives indications of the physical mechanisms involved in the star formation process. Determining the amount of interste... Read More about The Gaia-ESO Survey: Age spread in the star forming region NGC 6530 from the HR diagram and gravity indicators.

A search for radius inflation among active M-dwarfs in Praesepe (2018)
Journal Article

Rotation periods from Kepler K2 are combined with projected rotation velocities from the WIYN 3.5-m telescope, to determine projected radii for fast-rotating, low-mass ($0.15 \leq M/M_{\odot} \leq 0.6$) members of the Praesepe cluster. A maximum like... Read More about A search for radius inflation among active M-dwarfs in Praesepe.

The Gaia-ESO Survey: the origin and evolution of s-process elements (2018)
Journal Article

Context. Several works have found an increase of the abundances of the s-process neutron-capture elements in the youngest Galactic stellar populations. These trends provide important constraints on stellar and Galactic evolution and they need to be c... Read More about The Gaia-ESO Survey: the origin and evolution of s-process elements.

The Gaia DR2 view of the Gamma Velorum cluster: resolving the 6D structure (2018)
Journal Article

Gaia-ESO Survey observations of the young Gamma Velorum cluster led to the discovery of two kinematically distinct populations, Gamma Vel A and B, respectively, with population B extended over several square degrees in the Vela OB2 association. Using... Read More about The Gaia DR2 view of the Gamma Velorum cluster: resolving the 6D structure.

The low mass population of the Vela OB2 association from Gaia (2018)
Journal Article

The first Gaia Data Release presents an opportunity to characterise the low-mass population of OB associations, providing larger statistical samples and better constraints on the formation and evolution of clusters and associations. Using previously... Read More about The low mass population of the Vela OB2 association from Gaia.

The Gaia-ESO Survey: a kinematical and dynamical study of four young open clusters (2018)
Journal Article

Context The origin and dynamical evolution of star clusters is an important topic in stellar astrophysics. Several models have been proposed in order to understand the formation of bound and unbound clusters and their evolution, and they can be test... Read More about The Gaia-ESO Survey: a kinematical and dynamical study of four young open clusters.

The inflated radii of M-dwarfs in the Pleiades (2018)
Journal Article

Rotation periods obtained with the Kepler satellite have been combined with precise measurements of projected rotation velocity from the WIYN 3.5-m telescope to determine the distribution of projected radii for several hundred low-mass (0.1 6 M/M? 6... Read More about The inflated radii of M-dwarfs in the Pleiades.

The Gaia-ESO Survey: open clusters in Gaia-DR1. A way forward to stellar age calibration (2018)
Journal Article

Context Determination and calibration of the ages of stars, which heavily rely on stellar evolutionary models, are very challenging, while representing a crucial aspect in many astrophysical areas. Aims We describe the methodologies that, taking... Read More about The Gaia-ESO Survey: open clusters in Gaia-DR1. A way forward to stellar age calibration.

The Gaia_ESO Survey: double, triple and quadruple-line spectroscopic binary candidates (2017)
Journal Article

Context. The Gaia-ESO Survey (GES) is a large spectroscopic survey that provides a unique opportunity to study the distribution of spectroscopic multiple systems among different populations of the Galaxy. Aims. Our aim is to detect binarity/multiplic... Read More about The Gaia_ESO Survey: double, triple and quadruple-line spectroscopic binary candidates.

The Gaia-ESO Survey and CSI 2264: Substructures, disks, and sequential star formation in the young open cluster NGC 2264 (2017)
Journal Article

Context. Reconstructing the structure and history of young clusters is pivotal to understanding the mechanisms and timescales of early stellar evolution and planet formation. Recent studies suggest that star clusters often exhibit a hierarchical stru... Read More about The Gaia-ESO Survey and CSI 2264: Substructures, disks, and sequential star formation in the young open cluster NGC 2264.

Searching for new young stars in the northern hemisphere: The Pisces Moving Group (2017)
Journal Article

Using the kinematically unbiased technique described in Binks, Jeffries & Maxted (2015), we present optical spectra for a further 122 rapidly-rotating (rotation periods

Ages and Age Spreads in Young Stellar Clusters (2017)
Journal Article

I review progress towards understanding the time-scales of star and cluster formation and of the absolute ages of young stars. I focus in particular on the areas in which Francesco Palla made highly significant contributions - interpretation of the H... Read More about Ages and Age Spreads in Young Stellar Clusters.

Gaia-ESO Survey: Global properties of clusters Trumpler 14 and 16 in the Carina nebula (2017)
Journal Article

Aims. We present the first extensive spectroscopic study of the global population in star clusters Trumpler 16, Trumpler 14, and Collinder 232 in the Carina nebula, using data from the Gaia-ESO Survey, down to solar-mass stars. Methods. In addition t... Read More about Gaia-ESO Survey: Global properties of clusters Trumpler 14 and 16 in the Carina nebula.

Multiple kinematical populations in Vela OB2 from Gaia DR1 data (2017)
Journal Article

Context. Recent results using radial-velocity measurements from the Gaia-ESO Survey have led to the discovery of multiple kinematic populations across the Vela OB2 association. We present here a proper-motion study of the same region. Aims. Our aim... Read More about Multiple kinematical populations in Vela OB2 from Gaia DR1 data.

The Gaia-ESO Survey: dynamical models of flattened, rotating globular clusters (2017)
Journal Article

We present a family of self-consistent axisymmetric rotating globular cluster models which are fitted to spectroscopic data for NGC 362, NGC 1851, NGC 2808, NGC 4372, NGC 5927 and NGC 6752 to provide constraints on their physical and kinematic proper... Read More about The Gaia-ESO Survey: dynamical models of flattened, rotating globular clusters.

The Gaia-ESO Survey: Structural and dynamical properties of the young cluster Chamaeleon I (2017)
Journal Article

Investigating the physical mechanisms driving the dynamical evolution of young star clusters is fundamental to our understanding of the star formation process and the properties of the Galactic field stars. The young (~2 Myr) and partially embedded c... Read More about The Gaia-ESO Survey: Structural and dynamical properties of the young cluster Chamaeleon I.

The Gaia-ESO Survey: the present-day radial metallicity distribution of the Galactic disc probed by pre-main-sequence clusters ??? (2017)
Journal Article

Context. The radial metallicity distribution in the Galactic thin disc represents a crucial constraint for modelling disc formation and evolution. Open star clusters allow us to derive both the radial metallicity distribution and its evolution over t... Read More about The Gaia-ESO Survey: the present-day radial metallicity distribution of the Galactic disc probed by pre-main-sequence clusters ???.

A WISE-based search for debris discs amongst M-dwarfs in nearby, young, moving groups (2017)
Journal Article

We present a search for debris discs amongst M-dwarf members of nearby, young (5–150 Myr) moving groups (MGs) using infrared (IR) photometry, primarily from the Wide Infrared Survey Explorer (WISE). A catalogue of 100 MG M dwarfs that have suitable W... Read More about A WISE-based search for debris discs amongst M-dwarfs in nearby, young, moving groups.

The Gaia-ESO Survey: the inner disk, intermediate-age open cluster Trumpler 23 (2017)
Journal Article

Context. Trumpler 23 is a moderately populated, intermediate-age open cluster within the solar circle at a RGC ~ 6 kpc. It is in a crowded field very close to the Galactic plane and the color–magnitude diagram shows significant field contamination an... Read More about The Gaia-ESO Survey: the inner disk, intermediate-age open cluster Trumpler 23.

The Gaia-ESO Survey: Calibration strategy (2017)
Journal Article

The Gaia-ESO survey (GES) is now in its fifth and last year of observations and has produced tens of thousands of high-quality spectra of stars in all Milky Way components. This paper presents the strategy behind the selection of astrophysical calibr... Read More about The Gaia-ESO Survey: Calibration strategy.

The Gaia-ESO Survey: revisiting the Li-rich giant problem (2016)
Journal Article

The discovery of lithium-rich giants contradicts expectations from canonical stellar evolution. Here we report on the serendipitous discovery of 20 Li-rich giants observed during the Gaia-ESO Survey, which includes the first nine Li-rich giant stars... Read More about The Gaia-ESO Survey: revisiting the Li-rich giant problem.

The Gaia-ESO Survey: Lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars (2016)
Journal Article

We show that non-magnetic models for the evolution of pre-main-sequence (PMS) stars cannot simultaneously describe the colour–magnitude diagram (CMD) and the pattern of lithium depletion seen in the cluster of young, low-mass stars surrounding ?2 Vel... Read More about The Gaia-ESO Survey: Lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars.

The Gaia-ESO Survey: Pre-Main Sequence Stars in the Young Open Cluster NGC 3293 (2016)
Journal Article

The young open cluster NGC3293 is included in the observing program of the Gaia-ESO survey (GES). The radial velocity values provided have been used to assign cluster membership probabilities by means of a single-variable parametric analysis. These m... Read More about The Gaia-ESO Survey: Pre-Main Sequence Stars in the Young Open Cluster NGC 3293.

The Gaia-ESO Survey: A lithium-rotation connection at 5 Myr? (2016)
Journal Article

Context The evolution of lithium abundance in cool dwarfs provides a unique probe of nonstandard processes in stellar evolution. Aims We investigate the lithium content of young low-mass stars in the 5 Myr old, star forming region NGC 2264 and i... Read More about The Gaia-ESO Survey: A lithium-rotation connection at 5 Myr?.

The Gaia-ESO Survey: membership and initial mass function of the. Velorum cluster (2016)
Journal Article

Context. Understanding the properties of young open clusters, such as the initial mass function (IMF), star formation history, and dynamic evolution, is crucial for obtaining reliable theoretical predictions of the mechanisms involved in the star for... Read More about The Gaia-ESO Survey: membership and initial mass function of the. Velorum cluster.

The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus (2016)
Journal Article

The Gaia ESO Public Spectroscopic Survey (GES) is providing the astronomical community with high-precision measurements of many stellar parameters including radial velocities (RVs) of stars belonging to several young clusters and star-forming regions... Read More about The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus.

The Gaia-ESO Survey: Stellar radii in the young open clusters NGC 2264, NGC 2547, and NGC 2516 (2016)
Journal Article

Context. Rapidly rotating, low-mass members of eclipsing binary systems have measured radii that are significantly larger than predicted by standard evolutionary models. It has been proposed that magnetic activity is responsible for this radius infla... Read More about The Gaia-ESO Survey: Stellar radii in the young open clusters NGC 2264, NGC 2547, and NGC 2516.

The Age of Taurus: Environmental Effects on Disc Lifetimes (2015)
Journal Article

Using semi-empirical isochrones, we find the age of the Taurus star-forming region to be 3-4 Myr. Comparing the disc fraction in Taurus to young massive clusters suggests discs survive longer in this low density environment. We also present a method... Read More about The Age of Taurus: Environmental Effects on Disc Lifetimes.

The Gaia-ESO Survey: chemical signatures of rocky accretion in a young solar-type star (2015)
Journal Article

It is well known that newly formed planetary systems undergo processes of orbital reconfiguration and planetary migration. As a result, planets or protoplanetary objects may accrete onto the central star, being fused and mixed into its external layer... Read More about The Gaia-ESO Survey: chemical signatures of rocky accretion in a young solar-type star.

The Gaia-ESO Survey: empirical determination of the precision of stellar radial velocities and projected rotation velocities (2015)
Journal Article

Context. The Gaia-ESO Survey (GES) is a large public spectroscopic survey at the European Southern Observatory Very Large Telescope. Aims. A key aim is to provide precise radial velocities (RVs) and projected equatorial velocities (vsini) for repr... Read More about The Gaia-ESO Survey: empirical determination of the precision of stellar radial velocities and projected rotation velocities.

A kinematically unbiased search for nearby young stars in the Northern hemisphere selected using SuperWASP rotation periods (2015)
Journal Article

We present a kinematically-unbiased search to identify young, nearby low-mass members of kinematic moving groups (MGs). Objects with both rotation periods shorter than 5 days in the SuperWASP All-Sky Survey and X-ray counterparts in the ROSAT All-Sky... Read More about A kinematically unbiased search for nearby young stars in the Northern hemisphere selected using SuperWASP rotation periods.

The Gaia-ESO Survey: N-body modelling of the Gamma Velorum cluster (2015)
Journal Article

The Gaia-ESO Survey has recently unveiled the complex kinematic signature of the Gamma Velorum cluster: this cluster is composed of two kinematically distinct populations (hereafter, population A and B), showing two different velocity dispersions and... Read More about The Gaia-ESO Survey: N-body modelling of the Gamma Velorum cluster.

Gaia-ESO Survey: Analysis of pre-main sequence stellar spectra (2015)
Journal Article

Context. The Gaia-ESO Public Spectroscopic Survey is obtaining high-quality spectroscopy of some 100 000 Milky Way stars using the FLAMES spectrograph at the VLT, down to V = 19 mag, systematically covering all the main components of the Milky Way an... Read More about Gaia-ESO Survey: Analysis of pre-main sequence stellar spectra.

The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo (2015)
Journal Article

A small fraction of the halo field is made up of stars that share the light element (Z = 13) anomalies characteristic of second generation globular cluster (GC) stars. The ejected stars shed light on the formation of the Galactic halo by tracing the... Read More about The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo.

TheGaia-ESO Survey: Chromospheric emission, accretion properties, and rotation inγVelorum and Chamaeleon I (2015)
Journal Article

Aims. One of the goals of the Gaia-ESO Survey (GES), which is conducted with FLAMES at the VLT, is the census and the characterization of the low-mass members of very young clusters and associations. We conduct a comparative study of the main propert... Read More about TheGaia-ESO Survey: Chromospheric emission, accretion properties, and rotation inγVelorum and Chamaeleon I.

The Gaia-ESO survey: Discovery of a spatially extended low-mass population in the Vela OB2 association (2015)
Journal Article

The nearby (distance ~ 350–400 pc), rich Vela OB2 association, includes ?2 Velorum, one of the most massive binaries in the solar neighbourhood and an excellent laboratory for investigating the formation and early evolution of young clusters. Recent... Read More about The Gaia-ESO survey: Discovery of a spatially extended low-mass population in the Vela OB2 association.

The Gaia-ESO Survey: Kinematics of seven Galactic globular clusters (2015)
Journal Article

The Gaia-ESO survey is a large public spectroscopic survey aimed at investigating the origin and formation history of our Galaxy by collecting spectroscopy of representative samples (about 105 Milky Way stars) of all Galactic stellar populations, in... Read More about The Gaia-ESO Survey: Kinematics of seven Galactic globular clusters.

The Gaia-ESO Survey: CNO abundances in the open clusters Trumpler 20, NGC 4815, and NGC 6705 (2015)
Journal Article

Context. The Gaia-ESO Public Spectroscopic Survey will observe a large sample of clusters and cluster stars, covering a wide age-distance-metallicity-position-density parameter space. Aims. We aim to determine C, N, and O abundances in stars of Ga... Read More about The Gaia-ESO Survey: CNO abundances in the open clusters Trumpler 20, NGC 4815, and NGC 6705.

Pre-main-sequence isochrones - III: The Cluster Collaboration isochrone server (2014)
Journal Article

We present an isochrone server for semi-empirical pre-main-sequence model isochrones in the following systems: Johnson–Cousins, Sloan Digital Sky Survey, Two-Micron All-Sky Survey, Isaac Newton Telescope (INT) Wide-Field Camera and INT Photometric Ha... Read More about Pre-main-sequence isochrones - III: The Cluster Collaboration isochrone server.

Using rotation, magnetic activity and lithium to estimate the ages of low mass stars (2014)
Journal Article

The rotation rate, level of magnetic activity and surface lithium abundance are age-dependent quantities in stars of about a solar mass and below. The physical reasons for the evolution of these phenomena are qualitatively understood, but accurate qu... Read More about Using rotation, magnetic activity and lithium to estimate the ages of low mass stars.

The Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars (2014)
Journal Article

Context. The ongoing Gaia-ESO Public Spectroscopic Survey is using FLAMES at the VLT to obtain high-quality medium-resolution Giraffe spectra for about 105 stars and high-resolution UVES spectra for about 5000 stars. With UVES, the Survey has already... Read More about The Gaia-ESO Survey: The analysis of high-resolution UVES spectra of FGK-type stars.

The Gaia-ESO Survey: Metallicity of the Chamaeleon I star-forming region (2014)
Journal Article

Context. Recent metallicity determinations in young open clusters and star-forming regions suggest that the latter may be characterized by a slightly lower metallicity than the Sun and older clusters in the solar vicinity. However, these results are... Read More about The Gaia-ESO Survey: Metallicity of the Chamaeleon I star-forming region.

The Gaia-ESO Survey: the first abundance determination of the pre-main-sequence cluster gamma Velorum (2014)
Journal Article

Context. Knowledge of the abundance distribution of star forming regions and young clusters is critical to investigate a variety of issues, from triggered star formation and chemical enrichment by nearby supernova explosions to the ability to form pl... Read More about The Gaia-ESO Survey: the first abundance determination of the pre-main-sequence cluster gamma Velorum.

The Gaia-ESO Survey: the Galactic thick to thin disc transition (2014)
Journal Article

Aims. The nature of the thick disc and its relation to the thin disc is presently an important subject of debate. In fact, the structural and chemo-dynamical transition between disc populations can be used as a test of the proposed models of Galactic... Read More about The Gaia-ESO Survey: the Galactic thick to thin disc transition.

The effect of star-spots on the ages of low-mass stars determined from the lithium depletion boundary (2014)
Journal Article

In a coeval group of low-mass stars, the luminosity of the sharp transition between stars that retain their initial lithium and those at slightly higher masses in which Li has been depleted by nuclear reactions, the lithium depletion boundary (LDB),... Read More about The effect of star-spots on the ages of low-mass stars determined from the lithium depletion boundary.

Gaia-ESO Survey: Empirical classification of VLT/Giraffe stellar spectra in the wavelength range 6440–6810 Å in theγVelorum cluster, and calibration of spectral indices (2014)
Journal Article

We present a study of spectral diagnostics available from optical spectra with R = 17 000 obtained with the VLT/Giraffe HR15n setup, using observations from the Gaia-ESO Survey, on the γ Vel young cluster, with the purpose of classifying these stars... Read More about Gaia-ESO Survey: Empirical classification of VLT/Giraffe stellar spectra in the wavelength range 6440–6810 Å in theγVelorum cluster, and calibration of spectral indices.

The Gaia-ESO Survey: processing FLAMES-UVES spectra (2014)
Journal Article

The Gaia-ESO Survey is a large public spectroscopic survey that aims to derive radial velocities and fundamental parameters of about 105 Milky Way stars in the field and in clusters. Observations are carried out with the multi-object optical spectrog... Read More about The Gaia-ESO Survey: processing FLAMES-UVES spectra.

The effect of starspots on the radii of low-mass pre-main-sequence stars (2014)
Journal Article

A polytropic model is used to investigate the effects of dark photospheric spots on the evolution and radii of magnetically active, low-mass (M < 0.5 M⊙), pre-main-sequence (PMS) stars. Spots slow the contraction along Hayashi tracks and inflate the... Read More about The effect of starspots on the radii of low-mass pre-main-sequence stars.

The Gaia-ESO Survey: radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk (2014)
Journal Article

We study the relationship between age, metallicity, and α-enhancement of FGK stars in the Galactic disk. The results are based upon the analysis of high-resolution UVES spectra from the Gaia-ESO large stellar survey. We explore the limitations of the... Read More about The Gaia-ESO Survey: radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk.

AN ANOMALOUS EXTINCTION LAW IN THE Cep OB3b YOUNG CLUSTER: EVIDENCE FOR DUST PROCESSING DURING GAS DISPERSAL (2014)
Journal Article

We determine the extinction law through Cep OB3b, a young cluster of 3000 stars undergoing gas dispersal. The extinction is measured toward 76 background K giants identified with MMT/Hectospec spectra. Color excess ratios were determined toward each... Read More about AN ANOMALOUS EXTINCTION LAW IN THE Cep OB3b YOUNG CLUSTER: EVIDENCE FOR DUST PROCESSING DURING GAS DISPERSAL.

Gaia-ESO Survey: Properties of the intermediate age open cluster NGC 4815 (2014)
Journal Article

Context. NGC 4815 is a populous ~500 Myr open cluster at Rgc ~ 7 kpc observed in the first six months of the Gaia-ESO Survey. Located in the inner Galactic disk, NGC 4815 is an important potential tracer of the abundance gradient, where relatively fe... Read More about Gaia-ESO Survey: Properties of the intermediate age open cluster NGC 4815.

The Gaia-ESO Survey: Kinematic structure in the Gamma Velorum cluster (2014)
Journal Article

Context. A key science goal of the Gaia-ESO survey (GES) at the VLT is to use the kinematics of low-mass stars in young clusters and star forming regions to probe their dynamical histories and how they populate the field as they become unbound. The c... Read More about The Gaia-ESO Survey: Kinematic structure in the Gamma Velorum cluster.

Strong biases in estimating the time dependence of mass accretion rates in young stars (2014)
Journal Article

The temporal decay of mass accretion in young stars is a fundamental tracer of the early evolution of circumstellar discs. Through population syntheses, we study how correlated uncertainties between the estimated parameters of young stars (luminosity... Read More about Strong biases in estimating the time dependence of mass accretion rates in young stars.

The Gaia-ESO Survey: Abundance ratios in the inner-disk open clusters Trumpler 20, NGC 4815, NGC 6705 (2014)
Journal Article

Context. Open clusters are key tools to study the spatialdistribution of abundances in the disk and their evolution with time. Aims. Using the first release of stellar parameters and abundances of the Gaia-ESO Survey, we analyse the chemical prope... Read More about The Gaia-ESO Survey: Abundance ratios in the inner-disk open clusters Trumpler 20, NGC 4815, NGC 6705.

A lithium depletion boundary age of 21 Myr for the Beta Pictoris moving group (2013)
Journal Article

Optical spectroscopy is used to confirm membership for eight low-mass candidates in the young Beta Pic moving group (BPMG) via their radial velocities, chromospheric activity and kinematic parallaxes. We searched for the presence of the Li I 6708 Å r... Read More about A lithium depletion boundary age of 21 Myr for the Beta Pictoris moving group.

A lithium depletion boundary age of 22 Myr for NGC 1960 (2013)
Journal Article

We present a deep Cousins RI photometric survey of the open cluster NGC 1960, complete to RC ≃ 22, IC ≃ 21, that is used to select a sample of very low mass cluster candidates. Gemini spectroscopy of a subset of these is used to confirm membership an... Read More about A lithium depletion boundary age of 22 Myr for NGC 1960.

No evidence for intense, cold accretion on to YSOs from measurements of Li in T-Tauri stars (2013)
Journal Article

We have used medium-resolution spectra to search for evidence that proto-stellar objects accrete at high rates during their early ‘assembly phase’. Models predict that depleted lithium and reduced luminosity in T-Tauri stars are key signatures of ‘co... Read More about No evidence for intense, cold accretion on to YSOs from measurements of Li in T-Tauri stars.

Pre-main-sequence isochrones – II. Revising star and planet formation time-scales (2013)
Journal Article

We have derived ages for 13 young (

On the relationship between the size and surface coverage of starspots on magnetically active low-mass stars (2013)
Journal Article

We present a model that predicts the light curve amplitude distribution for an ensemble of low-mass magnetically active stars, under the assumptions that stellar spin axes are randomly orientated and that cool starspots have a characteristic scale le... Read More about On the relationship between the size and surface coverage of starspots on magnetically active low-mass stars.

Angular momentum evolution of cool stars: Toward a synthesis of observations and theory before and after the ZAMS (2013)
Journal Article

The coexistence of fast and slowly rotating cool stars in ZAMS clusters – forming distinct sequences in the color vs. rotation period plane – is providing clues to differences in their pre main-sequence angular momentum evolution. This Cool Stars 17... Read More about Angular momentum evolution of cool stars: Toward a synthesis of observations and theory before and after the ZAMS.

The low-mass Initial Mass Function in the young cluster NGC 6611 (2009)
Journal Article

NGC 6611 is the massive young cluster (2-3 Myr) that ionises the Eagle Nebula. We present very deep photometric observations of the central region of NGC 6611 obtained with the Hubble Space Telescope and the following filters: ACS/WFC F775W and F850L... Read More about The low-mass Initial Mass Function in the young cluster NGC 6611.

The Keele–Exeter young cluster survey – I. Low-mass pre-main-sequence stars in NGC 2169 (2007)
Journal Article

We have used R_C I_C CCD photometry from the Isaac Newton telescope and intermediate resolution spectroscopy from the Gemini North telescope to identify and characterise low-mass (0.15

Kinematic structure in the young σ Orionis association (2006)
Journal Article

We have used precise radial velocity measurements for a large number of candidate low-mass stars and brown dwarfs, to show that the young Sigma Ori ``cluster'' consists of two spatially superimposed components which are kinematically separated by 7 k... Read More about Kinematic structure in the young σ Orionis association.

Star Formation in the Eagle Nebula and NGC 6611 (2006)
Journal Article

We present IZJHKL' photometry of the core of the cluster NGC 6611 in the Eagle Nebula. This photometry is used to constrain the Initial Mass Function (IMF) and the circumstellar disk frequency of the young stellar objects. Optical spectroscopy of 258... Read More about Star Formation in the Eagle Nebula and NGC 6611.

Circumstellar discs in the young σ Orionis cluster (2006)
Journal Article

We present new K- and L'-band imaging observations for members of the young (3-5 Myr) sigma Orionis cluster, obtained with UIST at UKIRT. We determine (K-L') colour excesses with respect to the photospheres, finding evidence for warm circumstellar du... Read More about Circumstellar discs in the young σ Orionis cluster.

Synthesis of the Beryllium 3131A Spectral Region (2005)
Journal Article

The Beryllium spectral region of the Sun, Procyon and 4 stars in the open cluster NGC6633 up to Teff = 7500K have been synthesised using ATLAS9 model atmospheres and the MOOG spectral synthesis program. The line list used for these syntheses has bee... Read More about Synthesis of the Beryllium 3131A Spectral Region.

The lithium depletion boundary in NGC 2547 as a test of pre-main-sequence evolutionary models (2005)
Journal Article

Intermediate resolution spectroscopy from the ESO Very Large Telescope is analysed for 63 photometrically selected low-mass (0.08-0.30 Msun) candidates of the open cluster NGC 2547. We have confirmed membership for most of these stars using radial ve... Read More about The lithium depletion boundary in NGC 2547 as a test of pre-main-sequence evolutionary models.

Circumstellar discs around solar-mass stars in NGC 6611 (2005)
Journal Article

We have performed IZJHKL' observations in NGC 6611, the young cluster that ionises the Eagle Nebula. We have discovered a rich pre-main sequence concentrated around the O-stars in the cluster. As measured by their L'-band excesses, at least 58% +/- 5... Read More about Circumstellar discs around solar-mass stars in NGC 6611.

Membership, binarity and accretion among very low-mass stars and brown dwarfs of the s Orionis cluster (2005)
Journal Article

Intermediate resolution (R=7000) spectroscopy is presented for 76 photometrically selected very low mass (0.04

Young stars and their circumstellar disks in the Sigma Orionis cluster (2004)
Conference Proceeding

The sigma Orionis cluster is a young association evolving under the disruptive influence of its massive O-star namesake. We are analysing this cluster as part of a program to characterise the influence of O-stars on the early stages of stellar evolut... Read More about Young stars and their circumstellar disks in the Sigma Orionis cluster.

The Li Overabundance of J37: Diffusion or Accretion? (2004)
Journal Article

In September 2002 the discovery of a super Li-rich F-dwarf (J37) in NGC 6633, an iron poor analogue of the better studied Hyades and Praecepe open clusters, was announced. This unique star was thought to be the smoking gun for the action of diffusion... Read More about The Li Overabundance of J37: Diffusion or Accretion?.

An L'-band survey for circumstellar discs around low-mass stars in the young σ Orionis cluster (2004)
Journal Article

We present new K- and L'-band imaging of a representative sample of members of the young 3-5 Myr old sigma Orionis cluster. We identified objects with (K-L') excess by analysing colour-colour diagrams and comparing the observations with empirical mai... Read More about An L'-band survey for circumstellar discs around low-mass stars in the young σ Orionis cluster.

Cool stars in NGC 2547 and pre-main-sequence lithium depletion (2003)
Journal Article

We present the results of a spectroscopic survey of X-ray selected, low-mass candidate members of the young open cluster NGC 2547. Using a combination of photometry, spectroscopic indices and radial velocities we refine our candidate list and then us... Read More about Cool stars in NGC 2547 and pre-main-sequence lithium depletion.

The lithium depletion boundary and the age of NGC 2547 (2003)
Journal Article

We present the results of a photometric and spectroscopic survey of cool M dwarf candidates in the young open cluster NGC 2547. Using the 2dF fiber spectrograph, we have searched for the luminosity at which lithium remains unburned in an attempt to c... Read More about The lithium depletion boundary and the age of NGC 2547.

No disks around low-mass stars and brown dwarfs in the young sigma Orionis cluster? (2002)
Journal Article

We report on the analysis of 2MASS near-infrared data of a sample of low-mass stars and brown dwarfs in the sigma Orionis cluster. Youth and cluster membership have been spectroscopically confirmed using the Li I spectral line. We find little evidenc... Read More about No disks around low-mass stars and brown dwarfs in the young sigma Orionis cluster?.

Ages, distances, and the initial mass functions of stellar clusters (2000)
Journal Article

We provide a review of the current status of several topics on the ages, distances, and mass functions of open clusters, with a particular emphasis on illuminating the areas of uncertainty. Hipparcos has obtained parallaxes for nearby open clusters t... Read More about Ages, distances, and the initial mass functions of stellar clusters.

Rotation, activity and lithium in NGC 6475 (1997)
Journal Article

Radial and rotational velocities, chromospheric activity and lithium abundances are presented for an X-ray-selected sample of stars in the young (220 Myr) open cluster NGC 6475. Low-mass members of the cluster have been identified on the basis of pho... Read More about Rotation, activity and lithium in NGC 6475.

Membership and lithium abundances of late-type stars in NGC 6633 (1997)
Journal Article

On the initial-final mass relation and maximum mass of white dwarf progenitors (1997)
Journal Article

The four white dwarfs (WDs) discovered in the young open cluster NGC 2516 are crucial in defining the shape of the initial-final mass relation (IFMR) and upper mass limit for WD progenitors (Mwd). The cluster metallicity has been recently determined... Read More about On the initial-final mass relation and maximum mass of white dwarf progenitors.

An X-ray survey of the young open cluster NGC 2516 (1997)
Journal Article

Excess barium in a K dwarf-white dwarf binary system. (1996)
Journal Article

We present spectroscopic evidence for an excess of the s-process element barium, in the rapidly rotating, K-dwarf component of the wide binary system 2REJ0357+283. The secondary star is a hot white dwarf (WD) and our result argues for a model where t... Read More about Excess barium in a K dwarf-white dwarf binary system..

2RE J0241-525: a nearby post-T Tauri visual binary system (1996)
Journal Article

We present high-spatial-resolution X-ray observations, photometry and spectroscopy of the two low-mass, active stars proposed as optical counterparts to the extreme ultraviolet source 2RE J0241 —525 (=EUVE J0241—530). It is confirmed that both stars,... Read More about 2RE J0241-525: a nearby post-T Tauri visual binary system.

The appearance of broad H$α$ in BL Lacertae (1996)
Journal Article

We present optical spectropolarimetry confirming Vermeulen et al.' recent discovery of a broad Ha emission line in BL Lacertae. This feature, which is present at about the same strength in spectra taken two days apart, is comparable in width (FWHM ≈... Read More about The appearance of broad H$α$ in BL Lacertae.

Wind-accretion induced rapid rotation and a new class of active star (1996)
Journal Article

A physical model is presented to explain the occurrence of wide binary systems discovered at EUV wavelengths, such as 2RE J0044 + 093, which consist of a hot white dwarf and an ultra-rapidly rotating K-dwarf. It is difficult to explain the rapid rota... Read More about Wind-accretion induced rapid rotation and a new class of active star.

Are there any isolated old neutron stars in the ROSAT Wide Field Camera survey? (1996)
Journal Article

We present the results of Monte Carlo simulations to predict the number of isolated old neutron stars (IONs) that are observed in the ROSAT Wide Field Camera (WFC) survey as a result of accretion-powered extreme ultraviolet (EUV) emission. Magnetic f... Read More about Are there any isolated old neutron stars in the ROSAT Wide Field Camera survey?.

Is 2RE J0357+283 the most coronally active star in the Galaxy? (1996)
Journal Article

The late-type stellar counterpart to the EUV source 2RE J0357+283 is found to be an ultra-fast rotating K2V star, with a rotation period of 8.76 hrs and vsini of 141+/-5km/s. If this were the only source of the EUV emission, then it would be the most... Read More about Is 2RE J0357+283 the most coronally active star in the Galaxy?.

New Extreme Ultraviolet-Selected Active Binaries from the ROSAT Wide Field Camera all Sky Survey (1995)
Journal Article

We present the results of radial velocity measurements for an EUV-selected sample of 11 new G- and K-type binary systems, discovered in a sample of 22 EUV sources from the ROSAT Wide Field Camera (WFC) all-sky survey. The physical status of each syst... Read More about New Extreme Ultraviolet-Selected Active Binaries from the ROSAT Wide Field Camera all Sky Survey.

The kinematics of lithium-rich, active late-type stars: evidence for a low-mass Local Association (1995)
Journal Article

An EUV-selected sample of late-type stars has been observed for lithium abundances and radial velocity radiations. It is found that essentially all of the single stars have lithium abundances comparable to or greater than late-type stars in the Pleia... Read More about The kinematics of lithium-rich, active late-type stars: evidence for a low-mass Local Association.

RE 1816+541: a northern hemisphere analogue to the low-mass rapid rotator HK Aqr. (1994)
Journal Article

Spectroscopic observations of the optical counterpart to the ROSAT Wide Field Camera source RE 1816 + 541 are presented. We find that the counterpart is a chromospherically active, rapidly rotating, dM1-2e star with a sin of 61 km s−1. No evide... Read More about RE 1816+541: a northern hemisphere analogue to the low-mass rapid rotator HK Aqr..

BD+22DEG4409 - a Rapidly Rotating Low-Mass Member of the Local Association (1994)
Journal Article

We present spectroscopic and photometric observations of BD + 22°4409, a nearby, low-mass star which, on the basis of its Galactic space motions and high EUV-to-bolometric luminosity ratio, has been previously assigned membership of the young kinemat... Read More about BD+22DEG4409 - a Rapidly Rotating Low-Mass Member of the Local Association.

Speedy Mic: a very young, rapidly rotating K star (1993)
Journal Article

RE 0618 + 7 5 - A very short-period, binary dMe system (1993)
Journal Article

We report on the discovery of a new, very short-period, chromospherically active, late-type binary system. Observations performed with the ROSAT Wide Field Camera revealed the EUV source RE 0618 + 75, and subsequent optical spectroscopy identified th... Read More about RE 0618 + 7 5 - A very short-period, binary dMe system.

The Kinematics of Active Late Type Stars Observed by the ROSAT Wide-Field Camera (1993)
Journal Article

A sample of single, main-sequence late-type stars detected during the ROSAT Wide Field Camera EUV all-sky survey is kinematically investigated. It is confirmed that the galactic velocity dispersion of magnetically active objects, as defined by the ra... Read More about The Kinematics of Active Late Type Stars Observed by the ROSAT Wide-Field Camera.

Prominence activity on the rapidly rotating field star HD 197890 (1993)
Journal Article

Time-resolved H αspectra are presented of the recently discovered, rapidly rotating young field star HD 197890. The observations contain rapid absorption and emission transients that cross the rotationally broadened Hα profile from blue to red on tim... Read More about Prominence activity on the rapidly rotating field star HD 197890.

Gliese 841A - an EUV-selected chromospherically active binary system (1993)
Journal Article

We report the discovery of a new short-period, main-sequence, chromospherically active late-type binary system. EUV observations performed by the ROSAT Wide Field Camera have identified the late-type star GL 841A as a possible very active star by vir... Read More about Gliese 841A - an EUV-selected chromospherically active binary system.

The ROSAT Wide Field Camera all-sky survey of extreme-ultraviolet sources. I - The Bright Source Catalogue (1993)
Journal Article

The first all-sky survey for cosmic sources of extreme-ultraviolet radiation has been carried out with the UK Wide Field Camera on ROSAT. A first reduction of the survey data has yielded a catalogue of 383 relatively bright EUV sources, forming the W... Read More about The ROSAT Wide Field Camera all-sky survey of extreme-ultraviolet sources. I - The Bright Source Catalogue.

EUV emission from a sample of late-type stars observed by the ROSAT wide field camera (1991)
Journal Article

The transition region structure of AR Lacertae (1991)
Journal Article

An X-Ray Flare on the Shortperiod Eclipsing Binary Xy-Ursae (1990)
Journal Article

Coronal X-ray emission from the short-period eclipsing binary XY UMa (1990)
Journal Article

The Stardome: using exoplanet research as a gateway into Science and Higher Education.
Digital Artefact

Impact REF21; KEELE_PUBLIC_ENGAGEMENT_STARDOME_PROJECT

OB Associations
Presentation / Conference

OB associations are low-density groups of young stars that are dispersing from their birth environment into the Galactic field. They are important for understanding the star formation process, early stellar evolution, the properties and distribution... Read More about OB Associations.