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Nicholas Wright's Outputs (75)

The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products star (2022)
Journal Article
Gilmore, G., Randich, S., Worley, C., Hourihane, A., Gonneau, A., Sacco, G., …Zorec, J. (2022). The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products star. Astronomy & Astrophysics, 66, Article A120. https://doi.org/10.1051/0004-6361/202243134

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.

Large-scale expansion of OB stars in Cygnus (2022)
Journal Article
Wright. (2022). Large-scale expansion of OB stars in Cygnus. Monthly Notices of the Royal Astronomical Society, 687 - 692. https://doi.org/10.1093/mnras/stac1526

The proper motions (PMs) of OB stars in Cygnus have recently been found to exhibit two large-scale kinematic patterns suggestive of expansion. We perform a 3D traceback on these OB stars, the newly identified OB associations and related open clusters... Read More about Large-scale expansion of OB stars in Cygnus.

Quantifying kinematic substructure in star-forming regions with statistical tests of spatial autocorrelation (2022)
Journal Article
Arnold, B., Wright, N., & Parker, R. J. (2022). Quantifying kinematic substructure in star-forming regions with statistical tests of spatial autocorrelation. Monthly Notices of the Royal Astronomical Society, 515(2), 2266–2279. https://doi.org/10.1093/mnras/stac1955

We investigate whether spatial-kinematic substructure in young star-forming regions can be quantified using Moran's $I$ statistic. Its presence in young star clusters would provide an indication that the system formed from initially substructured con... Read More about Quantifying kinematic substructure in star-forming regions with statistical tests of spatial autocorrelation.

Proper motions of OB stars in the far Carina Arm (2021)
Journal Article
Wright. (2021). Proper motions of OB stars in the far Carina Arm. Monthly Notices of the Royal Astronomical Society, 4952 - 4968. https://doi.org/10.1093/mnras/stab2905

<jats:title>ABSTRACT</jats:title> <jats:p>In large-scale maps of the Galactic disc, the Carina Arm stands out as a clear spiral feature, hosting prominent star clusters and associations rich in massive stars. We study the proper motions of 4199 O and... Read More about Proper motions of OB stars in the far Carina Arm.

High-resolution H alpha imaging of the northern Galactic plane and the IGAPS image database (2021)
Journal Article
Wright. (2021). High-resolution H alpha imaging of the northern Galactic plane and the IGAPS image database. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/202140950

The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys IPHAS and UVEX based on data from the Isaac Newton Telescope (INT) obtained between 2003 and 2018. It captures the entire northern Galactic plane within the Galact... Read More about High-resolution H alpha imaging of the northern Galactic plane and the IGAPS image database.

The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics (2021)
Journal Article
Wright, & Jeffries. (2021). The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stab3032

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.

Revisiting the Cygnus OB associations (2021)
Journal Article
Wright. (2021). Revisiting the Cygnus OB associations. Monthly Notices of the Royal Astronomical Society, 2370 - 2385. https://doi.org/10.1093/mnras/stab2663

OB associations play an important role in Galactic evolution, though their origins and dynamics remain poorly studied, with only a small number of systems analysed in detail. In this paper, we revisit the existence and membership of the Cygnus OB ass... Read More about Revisiting the Cygnus OB associations.

Dispersal timescale of protoplanetary disks in the low-metallicity young cluster Dolidze 25 (2021)
Journal Article
Wright. (2021). Dispersal timescale of protoplanetary disks in the low-metallicity young cluster Dolidze 25. Astronomy & Astrophysics, 1-37. https://doi.org/10.1051/0004-6361/202140361

<jats:p><jats:italic>Context.</jats:italic> The dispersal of protoplanetary disks sets the timescale that is available for planets to assemble, and thus it is one of the fundamental parameters in theories of planetary formation. Disk dispersal is det... Read More about Dispersal timescale of protoplanetary disks in the low-metallicity young cluster Dolidze 25.

The Gaia-ESO Survey: Galactic evolution of lithium at high metallicity (2020)
Journal Article
Jeffries, R., & Wright, N. J. (2020). The Gaia-ESO Survey: Galactic evolution of lithium at high metallicity. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/202038688

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: Membership probabilities for stars in 32 open clusters from 3D kinematics (2020)
Journal Article
Jeffries, & Wright. (2020). The Gaia-ESO Survey: Membership probabilities for stars in 32 open clusters from 3D kinematics. Monthly Notices of the Royal Astronomical Society, 4701-4716. https://doi.org/10.1093/mnras/staa1749

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.

IGAPS: the merged IPHAS and UVEX optical surveys of the northern Galactic plane (2020)
Journal Article
Wright. (2020). IGAPS: the merged IPHAS and UVEX optical surveys of the northern Galactic plane. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/201937333

The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys, IPHAS and UVEX, based on data from the Isaac Newton Telescope (INT) obtained between 2003 and 2018. Here, we present the IGAPS point source catalogue. It contains... Read More about IGAPS: the merged IPHAS and UVEX optical surveys of the northern Galactic plane.

The velocity structure of Cygnus OB2 (2020)
Journal Article
Arnold, B., Goodwin, S. P., & Wright, N. J. (2020). The velocity structure of Cygnus OB2. Monthly Notices of the Royal Astronomical Society, 495(3), 3474-3481. https://doi.org/10.1093/mnras/staa1403

The kinematic structure of the Cygnus OB2 association is investigated. No evidence of expansion or contraction is found at any scale within the region. Stars that are within $\sim$ 0.5 parsecs of one another are found to have more similar velocities... Read More about The velocity structure of Cygnus OB2.

COBRaS: The e-MERLIN 21 cm Legacy survey of Cygnus OB2 (2020)
Journal Article
Morford, J. C., Fenech, D. M., Prinja, R. K., Blomme, R., Yates, J. A., Drake, J. J., …Vink, J. S. (2020). COBRaS: The e-MERLIN 21 cm Legacy survey of Cygnus OB2. Astronomy & Astrophysics, 637, Article ARTN A64. https://doi.org/10.1051/0004-6361/201731379

Context. The role of massive stars is central to an understanding of galactic ecology. It is important to establish the details of how massive stars provide radiative, chemical, and mechanical feedback in galaxies. Central to these issues is an under... Read More about COBRaS: The e-MERLIN 21 cm Legacy survey of Cygnus OB2.

The dynamics of the γ Vel cluster and nearby Vela OB2 association (2020)
Journal Article
Armstrong, J. J., Wright, N., Jeffries, R., & Jackson, R. J. (2020). The dynamics of the γ Vel cluster and nearby Vela OB2 association. Monthly Notices of the Royal Astronomical Society, 494(4), 4794 -4801. https://doi.org/10.1093/mnras/staa939

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
Binks, A., Wright, N., & Jeffries, R. (2020). A kinematically hot population of young stars in the solar neighbourhood. Monthly Notices of the Royal Astronomical Society, 494(2), 2429-2439. https://doi.org/10.1093/mnras/staa909

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.

Deep Chandra Survey of the Small Magellanic Cloud. III. Formation Efficiency of High-mass X-Ray Binaries (2019)
Journal Article
Wright. (2019). Deep Chandra Survey of the Small Magellanic Cloud. III. Formation Efficiency of High-mass X-Ray Binaries. Astrophysical Journal, https://doi.org/10.3847/1538-4357/ab4a7a

We have compiled the most complete census of high-mass X-ray binaries (HMXBs) in the Small Magellanic Cloud with the aim to investigate the formation efficiency of young accreting binaries in its low-metallicity environment. In total, we use 123 X-ra... Read More about Deep Chandra Survey of the Small Magellanic Cloud. III. Formation Efficiency of High-mass X-Ray Binaries.

Kinematic signatures of cluster formation from cool collapse in the Lagoon Nebula cluster NGC 6530 (2019)
Journal Article
Wright. (2019). Kinematic signatures of cluster formation from cool collapse in the Lagoon Nebula cluster NGC 6530. Monthly Notices of the Royal Astronomical Society, 2694 -2701. https://doi.org/10.1093/mnras/stz2303

We examine the mass dependence of the velocity dispersion of stars in the young cluster NGC 6530 to better understand how it formed. Using a large sample of members we find that the proper motion velocity dispersion increases with stellar mass. While... Read More about Kinematic signatures of cluster formation from cool collapse in the Lagoon Nebula cluster NGC 6530.

Dynamical evolution of star-forming regions: III. Unbound stars and predictions for Gaia (2019)
Journal Article
Schoettler, C., Parker, R. J., Arnold, B., Grimmett, L. P., de Bruijne, J., & Wright, N. J. (2019). Dynamical evolution of star-forming regions: III. Unbound stars and predictions for Gaia. Monthly Notices of the Royal Astronomical Society, 4615-4630. https://doi.org/10.1093/mnras/stz1487

We use N-body simulations to probe the early phases of the dynamical evolution of star-forming regions and focus on mass and velocity distributions of unbound stars. In this parameter space study, we vary the initial virial ratio and degree of spatia... Read More about Dynamical evolution of star-forming regions: III. Unbound stars and predictions for Gaia.

Expanding associations in the Vela-Puppis region - 3D structure and kinematics of the young population (2019)
Journal Article
Cantat-Gaudin, T., Jordi1, C., Wright, N., Armstrong, J., Vallenari, A., Balaguer-Núñez, L., …Jeffries, R. (2019). Expanding associations in the Vela-Puppis region - 3D structure and kinematics of the young population. Astronomy and Astrophysics, A17 - A17. https://doi.org/10.1051/0004-6361/201834957

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.