Outputs (81)

SMC-Last Extracted Photometry (2024)
Journal Article

We present point-source photometry from the Spitzer Space Telescope's final survey of the Small Magellanic Cloud (SMC). We mapped nearly 30 deg2 in two epochs in 2017, with the second extending to early 2018 at 3.6 and 4.5 μm using the Infrared Array... Read More about SMC-Last Extracted Photometry.

Massive young stellar objects in the Local Group spiral galaxy M 33 identified using machine learning (2022)
Journal Article

We present a supervised machine learning classification of stellar populations in the Local Group spiral galaxy M?33. The Probabilistic Random Forest (PRF) methodology, previously applied to populations in NGC?6822, utilizes both near and far-IR clas... Read More about Massive young stellar objects in the Local Group spiral galaxy M 33 identified using machine learning.

The Detection of Deuterated Water in the Large Magellanic Cloud with ALMA (2022)
Journal Article

We report the first detection of deuterated water (HDO) toward an extragalactic hot core. The HDO 211–212 line has been detected toward hot cores N 105–2 A and 2 B in the N 105 star-forming region in the low-metallicity Large Magellanic Cloud (LMC) d... Read More about The Detection of Deuterated Water in the Large Magellanic Cloud with ALMA.

ALMA Observations of Molecular Complexity in the Large Magellanic Cloud: The N 105 Star-forming Region (2022)
Journal Article

The Large Magellanic Cloud (LMC) is the nearest laboratory for detailed studies on the formation and survival of complex organic molecules (COMs), including biologically important ones, in low-metallicity environments-typical of earlier cosmological... Read More about ALMA Observations of Molecular Complexity in the Large Magellanic Cloud: The N 105 Star-forming Region.

The VMC survey. XLV. Proper motion of the outer LMC and the impact of the SMC (2022)
Journal Article

Context. The Large Magellanic Cloud (LMC) is the most luminous satellite galaxy of the Milky Way and owing to its companion, the Small Magellanic Cloud (SMC), represents an excellent laboratory to study the interaction of dwarf galaxies. Aims. The... Read More about The VMC survey. XLV. Proper motion of the outer LMC and the impact of the SMC.

The VMC survey - XLVI. Stellar proper motions in the centre of the Large Magellanic Cloud (2022)
Journal Article

We present proper motion (PM) measurements within the central region of the Large Magellanic Cloud (LMC), using near-infrared data from the VISTA survey of the Magellanic Cloud system (VMC). This work encompasses 18 VMC tiles covering a total sky are... Read More about The VMC survey - XLVI. Stellar proper motions in the centre of the Large Magellanic Cloud.

The VMC survey – XLVII. Turbulence-controlled hierarchical star formation in the Large Magellanic Cloud (2022)
Journal Article

We perform a statistical clustering analysis of upper main-sequence stars in the Large Magellanic Cloud (LMC) using data from the Visible and Infrared Survey Telescope for Astronomy survey of the Magellanic Clouds. We map over 2500 young stellar stru... Read More about The VMC survey – XLVII. Turbulence-controlled hierarchical star formation in the Large Magellanic Cloud.

The first detection of deuterated water toward extragalactic hot cores with ALMA (2021)
Journal Article

We discuss the first detection of deuterated water (HDO) in extragalactic hot cores. The HDO 211–212 line has been detected with the Atacama Large Millimeter/submillimeter Array (ALMA) toward hot cores N 105–2 A and 2 B in the N 105 star-forming regi... Read More about The first detection of deuterated water toward extragalactic hot cores with ALMA.

The VMC survey – XLIV: Mapping metallicity trends in the large magellanic cloud using near-infrared passbands (2021)
Journal Article

We have derived high-spatial-resolution metallicity maps covering ~105 deg2 across the Large Magellanic Cloud (LMC) using near-infrared passbands from the VISTA Survey of the Magellanic Clouds. We attempt to understand the metallicity distribution an... Read More about The VMC survey – XLIV: Mapping metallicity trends in the large magellanic cloud using near-infrared passbands.

The VMC survey - XLIII. The spatially resolved star formation history across the Large Magellanic Cloud (2021)
Journal Article

We derive the spatially resolved star formation history (SFH) for a 96 deg2 area across the main body of the Large Magellanic Cloud (LMC), using the near-infrared photometry from the VISTA survey of the Magellanic Clouds (VMC). The data and analyses... Read More about The VMC survey - XLIII. The spatially resolved star formation history across the Large Magellanic Cloud.

Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning (2021)
Journal Article

We present a supervised machine learning methodology to classify stellar populations in the Local Group dwarf-irregular galaxy NGC?6822. Near-IR colours (J - H, H - K, and J - K), K-band magnitudes and far-IR surface brightness (at 70 and 160?µm) mea... Read More about Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning.

The ASKAP-EMU Early Science Project: 888 MHz radio continuum survey of the Large Magellanic Cloud (2021)
Journal Article

We present an analysis of a new 120 deg2 radio continuum image of the Large Magellanic Cloud (LMC) at 888 MHz with a bandwidth of 288 MHz and beam size of 13${_{.}^{\prime\prime}}$9 × 12${_{.}^{\prime\prime}}$1 from the Australian Square Kilometre Ar... Read More about The ASKAP-EMU Early Science Project: 888 MHz radio continuum survey of the Large Magellanic Cloud.

The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars (2021)
Journal Article

Galaxy interactions distort the distribution of baryonic matter and can affect star formation. The nearby Magellanic Clouds are a prime example of an ongoing galaxy interaction process. Here, we use the intermediate-age (similar to 1-10 Gyr) red clum... Read More about The VMC Survey – XL. Three-dimensional structure of the Small Magellanic Cloud as derived from red clump stars.

Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers (2021)
Journal Article

We study the morphology of the stellar periphery of the Magellanic Clouds in search of substructure using near–infrared imaging data from the VISTA Hemisphere Survey (VHS). Based on the selection of different stellar populations using the (J - Ks, Ks... Read More about Stellar substructures in the periphery of the magellanic clouds with the VISTA hemisphere survey from the red clump and other tracers.

The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud (2021)
Journal Article

We present results from an analysis of ~29?000 RR Lyrae stars located in the Large Magellanic Cloud (LMC). For these objects, near-infrared time-series photometry from the VISTA survey of the Magellanic Clouds system (VMC) and optical data from the O... Read More about The VMC Survey – XLII. Near-infrared period–luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud.

The VMC survey – XLI. Stellar proper motions within the Small Magellanic Cloud (2021)
Journal Article

We used data from the near-infrared Visible and Infrared Telescope for Astronomy (VISTA) survey of the Magellanic Cloud system (VMC) to measure proper motions (PMs) of stars within the Small Magellanic Cloud (SMC). The data analysed in this study com... Read More about The VMC survey – XLI. Stellar proper motions within the Small Magellanic Cloud.

The VMC survey XXXVIII. Proper motion of the Magellanic Bridge (2020)
Journal Article

Context. The Magellanic Clouds are a nearby pair of interacting dwarf galaxies and satellites of the Milky Way. Studying their kinematic properties is essential to understanding their origin and dynamical evolution. They have prominent tidal features... Read More about The VMC survey XXXVIII. Proper motion of the Magellanic Bridge.

The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – II. The Small Magellanic Cloud (2020)
Journal Article

We present a map of the total intrinsic reddening across ? 34 deg2 of the Small Magellanic Cloud (SMC) derived using optical (ugriz) and near-infrared (IR; YJKs) spectral energy distributions (SEDs) of background galaxies. The reddening map is create... Read More about The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – II. The Small Magellanic Cloud.

The VMC survey – XXXIX: Mapping metallicity trends in the Small Magellanic Cloud using near-infrared passbands (2020)
Journal Article

We have derived high spatial resolution metallicity maps covering ~42 deg2 across the Small Magellanic Cloud (SMC) in an attempt to understand its metallicity distribution and gradients up to a radius of ~ 4?. Using the near-infrared VISTA Survey of... Read More about The VMC survey – XXXIX: Mapping metallicity trends in the Small Magellanic Cloud using near-infrared passbands.

The VMC Survey - XXXVII. Pulsation periods of dust-enshrouded AGB stars in the Magellanic Clouds (2020)
Journal Article

Context. Variability is a key property of stars on the asymptotic giant branch (AGB). Their pulsation period is related to the luminosity and mass-loss rate of the star. Long-period variables (LPVs) and Mira variables are the most prominent of all ty... Read More about The VMC Survey - XXXVII. Pulsation periods of dust-enshrouded AGB stars in the Magellanic Clouds.

The VMC survey – XXXVI. Young stellar variability in the Large Magellanic Cloud (2020)
Journal Article

Studies of young stellar objects (YSOs) in the Galaxy have found that a significant fraction exhibits photometric variability. However, no systematic investigation has been conducted on the variability of extragalactic YSOs. Here we present the first... Read More about The VMC survey – XXXVI. Young stellar variability in the Large Magellanic Cloud.

Structural and Dynamical Analysis of 0.1 pc Cores and Filaments in the 30 Doradus-10 Giant Molecular Cloud (2020)
Journal Article

High-resolution (

Complex Organic Molecules in Star-Forming Regions of the Magellanic Clouds (2019)
Journal Article

The Large and Small Magellanic Clouds (LMC and SMC), gas-rich dwarf companions of the Milky Way, are the nearest laboratories for detailed studies on the formation and survival of complex organic molecules (COMs) under metal-poor conditions. To date,... Read More about Complex Organic Molecules in Star-Forming Regions of the Magellanic Clouds.

The VMC Survey - XXXV. Model fitting of LMC Cepheid light curves (2019)
Journal Article

We present the results of the light curve model fitting technique applied to optical and near-infrared photometric data for a sample of 18 Classical Cepheids (11 fundamentals and 7 first overtones) in the Large Magellanic Cloud (LMC). We use optical... Read More about The VMC Survey - XXXV. Model fitting of LMC Cepheid light curves.

Herschel spectroscopy of Massive Young Stellar Objects in the Magellanic Clouds (2019)
Journal Article

We present Herschel Space Observatory Photodetector Array Camera and Spectrometer (PACS) and Spectral and Photometric Imaging Receiver Fourier Transform Spectrometer (SPIRE FTS) spectroscopy of a sample of twenty massive Young Stellar Objects (YSOs)... Read More about Herschel spectroscopy of Massive Young Stellar Objects in the Magellanic Clouds.

The ASKAP-EMU Early Science Project: Radio Continuum Survey of the Small Magellanic Cloud (2019)
Journal Article

We present two new radio continuum images from the Australian Square Kilometre Array Pathfinder (ASKAP) survey in the direction of the Small Magellanic Cloud (SMC). These images are part of the Evolutionary Map of the Universe (EMU) Early Science Pro... Read More about The ASKAP-EMU Early Science Project: Radio Continuum Survey of the Small Magellanic Cloud.

The VMC Survey - XXXIV. Morphology of Stellar Populations in the Magellanic Clouds (2019)
Journal Article

The Magellanic Clouds are nearby dwarf irregular galaxies whose morphologies show different properties when traced by different stellar populations, making them an important laboratory for studying galaxy morphologies. We study the morphology of the... Read More about The VMC Survey - XXXIV. Morphology of Stellar Populations in the Magellanic Clouds.

The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – I. The bar and outskirts of the Small Magellanic Cloud (2019)
Journal Article

We present a method to map the total intrinsic reddening of a foreground extinguishing medium via the analysis of spectral energy distributions (SEDs) of background galaxies. In this pilot study, we implement this technique in two distinct regions of... Read More about The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – I. The bar and outskirts of the Small Magellanic Cloud.

Identification of Herbig Ae/Be Stars in the Small Magellanic Cloud (2019)
Journal Article

Protoplanetary disks orbiting intermediate-mass stars, Herbig Ae/Be stars, that have formed in a metal-poor environment may evolve differently than their Galactic cousins. A study of the planet-formation process in such an environment requires identi... Read More about Identification of Herbig Ae/Be Stars in the Small Magellanic Cloud.

The VMC Survey. XXXII. Pre-main-sequence populations in the Large Magellanic Cloud (2018)
Journal Article

Context Detailed studies of intermediate- and low-mass pre-main-sequence (PMS) stars outside the Galaxy have so far been conducted only for small targeted regions harbouring known star formation complexes. The VISTA Survey of the Magellanic Clouds (... Read More about The VMC Survey. XXXII. Pre-main-sequence populations in the Large Magellanic Cloud.

X-ray powder diffraction study of the stability of clathrate hydrates in the presence of salts with relevance to the Martian cryosphere (2018)
Journal Article

Water on the present day Martian surface is thought to exist in two thermally distinct sub-surface reservoirs: as ice in the cryosphere and as groundwater located deeper in the crust. These sub-surface environments are thought to contain saline, rath... Read More about X-ray powder diffraction study of the stability of clathrate hydrates in the presence of salts with relevance to the Martian cryosphere.

The VMC survey – XXXI. The spatially resolved star formation history of the main body of the Small Magellanic Cloud (2018)
Journal Article

We recover the spatially resolved star formation history across the entire main body and Wing of the Small Magellanic Cloud (SMC), using 14 deep tile images from the VISTA survey of the Magellanic Clouds (VMC) in the YJKs filters. The analysis is per... Read More about The VMC survey – XXXI. The spatially resolved star formation history of the main body of the Small Magellanic Cloud.

XXX. Stellar proper motions in the central parts of the Small Magellanic Cloud (2018)
Journal Article

We present the first spatially resolved map of stellar proper motions within the central (similar to 3.1 x 2.4 kpc) regions of the Small Magellanic Cloud (SMC). The data used for this study encompasses four tiles from the ongoing near-infrared VISTA... Read More about XXX. Stellar proper motions in the central parts of the Small Magellanic Cloud.

The VMC survey XXVIII. Improved measurements of the proper motion of the Galactic globular cluster 47 Tucanae (2018)
Journal Article

We use deep multi-epoch point-spread function (PSF) photometry taken with the Visible and Infrared Survey Telescope for Astronomy (VISTA) to measure and analyze the proper motions of stars within the Galactic globular cluster 47 Tucanae (47 Tuc, NGC... Read More about The VMC survey XXVIII. Improved measurements of the proper motion of the Galactic globular cluster 47 Tucanae.

The VMC Survey. XXIX. Turbulence-controlled Hierarchical Star Formation in the Small Magellanic Cloud (2018)
Journal Article

In this paper we report a clustering analysis of upper main-sequence stars in the Small Magellanic Cloud, using data from the VMC survey (the VISTA near-infrared YJK s survey of the Magellanic system). Young stellar structures are identified as surfa... Read More about The VMC Survey. XXIX. Turbulence-controlled Hierarchical Star Formation in the Small Magellanic Cloud.

The Detection of Hot Cores and Complex Organic Molecules in the Large Magellanic Cloud (2018)
Journal Article

We report the first extragalactic detection of the complex organic molecules (COMs) dimethyl ether (CH3OCH3) and methyl formate (CH3OCHO) with the Atacama Large Millimeter/submillimeter Array (ALMA). These COMs, together with their parent species met... Read More about The Detection of Hot Cores and Complex Organic Molecules in the Large Magellanic Cloud.

A dearth of OH/IR stars in the Small Magellanic Cloud (2018)
Journal Article

We present the results of targeted observations and a survey of 1612-, 1665-, and 1667-MHz circumstellar OH maser emission from asymptotic giant branch (AGB) stars and red supergiants (RSGs) in the Small Magellanic Cloud (SMC), using the Parkes and A... Read More about A dearth of OH/IR stars in the Small Magellanic Cloud.

The VMC Survey. XXVII. Young Stellar Structures in the LMC’s Bar Star-forming Complex (2017)
Journal Article

Star formation is a hierarchical process, forming young stellar structures of star clusters, associations, and complexes over a wide range of scales. The star-forming complex in the bar region of the Large Magellanic Cloud is investigated with upper... Read More about The VMC Survey. XXVII. Young Stellar Structures in the LMC’s Bar Star-forming Complex.

The VMC survey – XXV. The 3D structure of the Small Magellanic Cloud from Classical Cepheids (2017)
Journal Article

The VISTA near-infrared YJKs survey of the Magellanic System (VMC) is collecting deep Ks-band time-series photometry of pulsating stars hosted by the two Magellanic Clouds and their connecting bridge. Here, we present Y, J, Ks light curves for a samp... Read More about The VMC survey – XXV. The 3D structure of the Small Magellanic Cloud from Classical Cepheids.

The SAGE-Spec Spitzer Legacy program: the life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification - III (2017)
Journal Article

The Infrared Spectrograph (IRS) on the Spitzer Space Telescope observed nearly 800 point sources in the Large Magellanic Cloud (LMC), taking over 1000 spectra. 197 of these targets were observed as part of the SAGE-Spec Spitzer Legacy program; the re... Read More about The SAGE-Spec Spitzer Legacy program: the life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification - III.

Properties of CO$_2$ clathrate hydrates formed in the presence of MgSO$_4$ solutions with implications for icy moons (2017)
Journal Article

There is evidence to suggest that clathrate hydrates have a significant effect on the surface geology of icy bodies in the Solar System. However the aqueous environments believed to be present on these bodies are likely to be saline rather than pure... Read More about Properties of CO$_2$ clathrate hydrates formed in the presence of MgSO$_4$ solutions with implications for icy moons.

K-band integral field spectroscopy and optical spectroscopy of massive young stellar objects in the Small Magellanic Cloud (2016)
Journal Article

We present K-band integral field spectroscopic observations towards 17 massive young stellar objects (YSOs) in the low-metallicity Small Magellanic Cloud (SMC) and two YSO candidates in the compact H?II regions N81 and N88 A (also in the SMC). These... Read More about K-band integral field spectroscopy and optical spectroscopy of massive young stellar objects in the Small Magellanic Cloud.

The VMC Survey - XXI. New star cluster candidates discovered from infrared photometry in the Small Magellanic Cloud (2016)
Journal Article

We report the first search for new star clusters performed using the VISTA near-infrared YJKs Magellanic Clouds survey (VMC) data sets. We chose a pilot field of ~0.4 deg2 located in the South-west of the Small Magelllanic Cloud bar, where the star f... Read More about The VMC Survey - XXI. New star cluster candidates discovered from infrared photometry in the Small Magellanic Cloud.

XVII. Proper motions of the Small Magellanic Cloud and the Milky Way globular cluster 47 Tucanae (2016)
Journal Article

Aims. In this study we use multi-epoch near-infrared observations from the VISTA survey of the Magellanic Cloud system (VMC) to measure the proper motions of different stellar populations in a tile of 1.5 deg2 in size in the direction of the Galactic... Read More about XVII. Proper motions of the Small Magellanic Cloud and the Milky Way globular cluster 47 Tucanae.

Integral field spectroscopy of massive young stellar objects in the N113 H II region in the Large Magellanic Cloud (2015)
Journal Article

The Spitzer Surveying the Agents of Galaxy Evolution (SAGE) survey has allowed the identification and analysis of significant samples of Young Stellar Object (YSO) candidates in the Large Magellanic Cloud (LMC). However, the angular resolution of Spi... Read More about Integral field spectroscopy of massive young stellar objects in the N113 H II region in the Large Magellanic Cloud.

Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI (2015)
Journal Article

At distances of ~50 kpc and ~60 kpc for the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) respectively the Magellanic Clouds present us with a unique opportunity to study star formation in environments outside our own galaxy. Through... Read More about Characterising the Protostellar Population of the Magellanic Clouds with VLT/SINFONI.

Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results (2015)
Conference Proceeding

We present preliminary results from spectroscopy obtained with PACS and SPIRE onboard the Herschel Space Observatory of a sample of massive Young Stellar Objects in the Magellanic Clouds. We analyse key gas-phase cooling species (OI], [CII], H2O, CO,... Read More about Young Stellar Objects in the Magellanic Clouds: Herschel Spectroscopy First Results.

Spitzer infrared spectrograph point source classification in the Small Magellanic Cloud (2015)
Journal Article

The Magellanic Clouds are uniquely placed to study the stellar contribution to dust emission. Individual stars can be resolved in these systems even in the mid-infrared, and they are close enough to allow detection of infrared excess caused by dust.... Read More about Spitzer infrared spectrograph point source classification in the Small Magellanic Cloud.

Star formation rates from young-star counts and the structure of the ISM across the NGC 346/N66 complex in the SMC (2015)
Journal Article

The rate at which interstellar gas is converted into stars, and its dependence on environment, is one of the pillars on which our understanding of the visible Universe is build. We present a comparison of the surface density of young stars (S?) and d... Read More about Star formation rates from young-star counts and the structure of the ISM across the NGC 346/N66 complex in the SMC.

ERRATUM: “THE HERSCHEL INVENTORY OF THE AGENTS OF GALAXY EVOLUTION (HERITAGE) IN THE MAGELLANIC CLOUDS, A HERSCHEL OPEN TIME KEY PROGRAM” (2013, AJ, 146, 62) (2015)
Journal Article

We provide a corrected Table 4 that lists the total galaxy fluxes for the HERTIAGE bands and corresponding Figure 19 which plots these fluxes in comparison to prior measurements These corrected fluxes differ by up to 41% to what we reported in the or... Read More about ERRATUM: “THE HERSCHEL INVENTORY OF THE AGENTS OF GALAXY EVOLUTION (HERITAGE) IN THE MAGELLANIC CLOUDS, A HERSCHEL OPEN TIME KEY PROGRAM” (2013, AJ, 146, 62).

HERschelKEY PROGRAM HERITAGE: A FAR-INFRARED SOURCE CATALOG FOR THE MAGELLANIC CLOUDS (2014)
Journal Article

Observations from the HERschel Inventory of the Agents of Galaxy Evolution (HERITAGE) have been used to identify dusty populations of sources in the Large and Small Magellanic Clouds (LMC and SMC). We conducted the study using the HERITAGE catalogs o... Read More about HERschelKEY PROGRAM HERITAGE: A FAR-INFRARED SOURCE CATALOG FOR THE MAGELLANIC CLOUDS.

The VMC Survey XII. Star cluster candidates in the Large Magellanic Cloud (2014)
Journal Article

Context. In this work we analyse colour-magnitude diagrams (CMDs) of catalogued star clusters located in the Large Magellanic Cloud (LMC), from a YJKs photometric data set obtained by the Visible and Infrared Survey Telescope for Astronomy (VISTA) su... Read More about The VMC Survey XII. Star cluster candidates in the Large Magellanic Cloud.

Spitzer View Of Massive Star Formation In The Tidally Stripped Magellanic Bridge (2014)
Journal Article

The Magellanic Bridge is the nearest low-metallicity, tidally stripped environment, offering a unique high-resolution view of physical conditions in merging and forming galaxies. In this paper, we present an analysis of candidate massive young stella... Read More about Spitzer View Of Massive Star Formation In The Tidally Stripped Magellanic Bridge.

The VMC survey IX. Pilot study of the proper motion of stellar populations in the LMC from 2MASS and VISTA data (2014)
Journal Article

Context. Proper motion (PM) studies are fundamental ingredients in the understanding of the orbital history of galaxies. Current measurements do not yet provide a satisfactory answer to the possible scenarios for the formation and evolution of the Ma... Read More about The VMC survey IX. Pilot study of the proper motion of stellar populations in the LMC from 2MASS and VISTA data.

Molecular hydrogen emission in the interstellar medium of the Large Magellanic Cloud (2014)
Journal Article

We present the detection and analysis of molecular hydrogen emission towards ten interstellar regions in the Large Magellanic Cloud. We examined low-resolution infrared spectral maps of 12 regions obtained with the Spitzer infrared spectrograph (IRS)... Read More about Molecular hydrogen emission in the interstellar medium of the Large Magellanic Cloud.

Mapping the Star Formation in Orion A/L1641 (2014)
Conference Proceeding

First phases of the process of star formation are characterized by excess in infrared and high X-ray emission. With Spitzer and XMM-Newton we have surveyed the Orion A part relative to the filamentary cloud Lynds 1641 (L1641). Furthermore, an extende... Read More about Mapping the Star Formation in Orion A/L1641.

The VMC Survey - VIII. First results for anomalous Cepheids (2013)
Journal Article

The VISTA near-infrared YJKs survey of the Magellanic Clouds System (VMC, PI M.-R. L. Cioni) is collecting deep Ks-band time-series photometry of the pulsating variable stars hosted in the system formed by the two Magellanic Clouds and the Bridge con... Read More about The VMC Survey - VIII. First results for anomalous Cepheids.

SURVEYING THE AGENTS OF GALAXY EVOLUTION IN THE TIDALLY STRIPPED, LOW METALLICITY SMALL MAGELLANIC CLOUD (SAGE-SMC). III. YOUNG STELLAR OBJECTS (2013)
Journal Article

The Spitzer Space Telescope Legacy Program SAGE-SMC allows global studies of resolved stellar populations in the SMC in a different environment than our Galaxy. Using the SAGE-SMC IRAC (3.6–8.0 μm) and MIPS (24 and 70 μm) catalogs and images combined... Read More about SURVEYING THE AGENTS OF GALAXY EVOLUTION IN THE TIDALLY STRIPPED, LOW METALLICITY SMALL MAGELLANIC CLOUD (SAGE-SMC). III. YOUNG STELLAR OBJECTS.

ALMA RESOLVES 30 DORADUS: SUB-PARSEC MOLECULAR CLOUD STRUCTURE NEAR THE CLOSEST SUPER STAR CLUSTER (2013)
Journal Article

We present Atacama Large (sub)Millimeter Array observations of 30 Doradus—the highest resolution view of molecular gas in an extragalactic star formation region to date (∼0.4 pc × 0.6 pc). The 30Dor-10 cloud north of R136 was mapped in 12CO 2–1, 13CO... Read More about ALMA RESOLVES 30 DORADUS: SUB-PARSEC MOLECULAR CLOUD STRUCTURE NEAR THE CLOSEST SUPER STAR CLUSTER.

The Herschel inventory of the agents of galaxy evolution in the Magellanic Clouds, a Herschel open time key program (2013)
Journal Article

We present an overview of the HERschel Inventory of The Agents of Galaxy Evolution (HERITAGE) in the Magellanic Clouds project, which is a Herschel Space Observatory open time key program. We mapped the Large Magellanic Cloud (LMC) and Small Magellan... Read More about The Herschel inventory of the agents of galaxy evolution in the Magellanic Clouds, a Herschel open time key program.

ERRATUM: “AN X-RAYS SURVEY OF THE YOUNG STELLAR POPULATION OF THE LYNDS 1641 AND IOTA ORIONIS REGIONS” (2013, ApJ, 768, 99) (2013)
Journal Article

DUSTY OB STARS IN THE SMALL MAGELLANIC CLOUD. II. EXTRAGALACTIC DISKS OR EXAMPLES OF THE PLEIADES PHENOMENON? (2013)
Journal Article

We use mid-infrared Spitzer spectroscopy and far-infrared Herschel photometry for a sample of 20 main sequence O9–B2 stars in the Small Magellanic Cloud (SMC) with strong 24 μm excesses to investigate the origin of the mid-IR emission. Either debris... Read More about DUSTY OB STARS IN THE SMALL MAGELLANIC CLOUD. II. EXTRAGALACTIC DISKS OR EXAMPLES OF THE PLEIADES PHENOMENON?.

DUSTY OB STARS IN THE SMALL MAGELLANIC CLOUD. I. OPTICAL SPECTROSCOPY REVEALS PREDOMINANTLY MAIN-SEQUENCE OB STARS (2013)
Journal Article

We present the results of optical spectroscopic follow-up of 125 candidate main sequence OB stars in the Small Magellanic Cloud (SMC) that were originally identified in the S3MC infrared imaging survey as showing an excess of emission at 24 μm indica... Read More about DUSTY OB STARS IN THE SMALL MAGELLANIC CLOUD. I. OPTICAL SPECTROSCOPY REVEALS PREDOMINANTLY MAIN-SEQUENCE OB STARS.

AN X-RAY SURVEY OF THE YOUNG STELLAR POPULATION OF THE LYNDS 1641 AND IOTA ORIONIS REGIONS (2013)
Journal Article

We present an XMM-Newton survey of the part of the Orion A cloud south of the Orion Nebula. This survey includes the Lynds 1641 (L1641) dark cloud, a region of the Orion A cloud with very few massive stars and hence a relatively low ambient UV flux,... Read More about AN X-RAY SURVEY OF THE YOUNG STELLAR POPULATION OF THE LYNDS 1641 AND IOTA ORIONIS REGIONS.

Early-stage young stellar objects in the Small Magellanic Cloud (2012)
Journal Article

We present new observations of 34 YSO candidates in the SMC. The anchor of the analysis is a set of Spitzer-IRS spectra, supplemented by groundbased 3-5 micron spectra, Spitzer and NIR photometry, optical spectroscopy and radio data. The sources' SED... Read More about Early-stage young stellar objects in the Small Magellanic Cloud.

Ice chemistry in massive Young Stellar Objects: the role of metallicity (2011)
Journal Article

We present the comparison of the three most important ice constituents (water, CO and CO2) in the envelopes of massive Young Stellar Objects (YSOs), in environments of different metallicities: the Galaxy, the Large Magellanic Cloud (LMC) and, for the... Read More about Ice chemistry in massive Young Stellar Objects: the role of metallicity.

Ice chemistry in embedded young stellar objects in the Large Magellanic Cloud (2009)
Journal Article

We present spectroscopic observations of a sample of 15 embedded young stellar objects (YSOs) in the Large Magellanic Cloud (LMC). These observations were obtained with the Spitzer Infrared Spectrograph (IRS) as part of the SAGE-Spec Legacy program.... Read More about Ice chemistry in embedded young stellar objects in the Large Magellanic Cloud.

The star formation process in the Magellanic Clouds (2008)
Journal Article

The Magellanic Clouds offer unique opportunities to study star formation both on the global scales of an interacting system of gas-rich galaxies, as well as on the scales of individual star-forming clouds. The interstellar media of the Small and Larg... Read More about The star formation process in the Magellanic Clouds.

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.

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.

Mid-infrared observations of young stellar objects in the vicinity of sigma Orionis (2004)
Journal Article

We present new mid-infrared observations of objects in the vicinity of the O-star sigma Orionis, obtained with TIMMI-2 at ESO. By constraining their near- and mid-infrared spectral energy distributions, we established the nature of previously known I... Read More about Mid-infrared observations of young stellar objects in the vicinity of sigma Orionis.

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?.