Estimating the Convective Turnover Time (2022)
Journal Article
Wright. (2022). Estimating the Convective Turnover Time. Astrophysical Journal, 1-6. https://doi.org/10.3847/1538-4357/ac9cd8

The introduction of the Rossby number (R0), which incorporates the convective turnover time (t), in 1984 was a pioneering idea for understanding the correlation between stellar rotation and activity. The convective turnover time, which cannot be meas... Read More about Estimating the Convective Turnover Time.

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.

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.

The deep OB star population in Carina from the VST Photometric H alpha Survey (VPHAS plus ) (2016)
Journal Article
Wright. (2016). The deep OB star population in Carina from the VST Photometric H alpha Survey (VPHAS plus ). Monthly Notices of the Royal Astronomical Society, 1807 - 1830. https://doi.org/10.1093/mnras/stw2751

Massive OB stars are critical to the ecology of galaxies and yet our knowledge of OB stars in the Milky Way, fainter than V ~ 12, remains patchy. Data from the VST Photometric Ha Survey (VPHAS+) permit the construction of the first deep catalogues of... Read More about The deep OB star population in Carina from the VST Photometric H alpha Survey (VPHAS plus ).

SXP 214: An X-ray Pulsar In The Small Magellanic Cloud, Crossing The Circumstellar Disk Of The Companion (2016)
Journal Article
Wright. (2016). SXP 214: An X-ray Pulsar In The Small Magellanic Cloud, Crossing The Circumstellar Disk Of The Companion. Astrophysical Journal, https://doi.org/10.3847/0004-637X/826/1/4

Located in the Small Magellanic Cloud (SMC), SXP 214 is an X-ray pulsar in a high mass X-ray binary system with a Be-star companion. A recent survey of the SMC under a Chandra X-ray Visionary program found that the source was in a transition when the... Read More about SXP 214: An X-ray Pulsar In The Small Magellanic Cloud, Crossing The Circumstellar Disk Of The Companion.

Mass segregation in star clusters is not energy equipartition (2016)
Journal Article
Wright. (2016). Mass segregation in star clusters is not energy equipartition. Monthly Notices of the Royal Astronomical Society, 119-123. https://doi.org/10.1093/mnrasl/slw061

Mass segregation in star clusters is often thought to indicate the onset of energy equipartition, where the most massive stars impart kinetic energy to the lower-mass stars and brown dwarfs/free floating planets. The predicted net result of this is t... Read More about Mass segregation in star clusters is not energy equipartition.

Cygnus OB2 DANCe: A high-precision proper motion study of the Cygnus OB2 association (2016)
Journal Article
Wright. (2016). Cygnus OB2 DANCe: A high-precision proper motion study of the Cygnus OB2 association. Monthly Notices of the Royal Astronomical Society, 2593 - 2610. https://doi.org/10.1093/mnras/stw1148

We present a high-precision proper motion study of 873 X-ray and spectroscopically selected stars in the massive OB association Cygnus OB2 as part of the DANCe project. These were calculated from images spanning a 15 yr baseline and have typical prec... Read More about Cygnus OB2 DANCe: A high-precision proper motion study of the Cygnus OB2 association.

The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus (2016)
Journal Article
Jeffries, R., & Wright, N. J. (2016). The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus. Astronomy and Astrophysics Supplement Series, https://doi.org/10.1051/0004-6361/201527253

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.

Dynamical evolution of star forming regions - II. Basic kinematics (2016)
Journal Article
Parker, R. J., & Wright, N. J. (2016). Dynamical evolution of star forming regions - II. Basic kinematics. Monthly Notices of the Royal Astronomical Society, 3430-3447. https://doi.org/10.1093/mnras/stw087

We follow the dynamical evolution of young star-forming regions with a wide range of initial conditions and examine how the radial velocity dispersion, $\sigma$, evolves over time. We compare this velocity dispersion to the theoretically expected val... Read More about Dynamical evolution of star forming regions - II. Basic kinematics.

The Kinematics of Star Formation: Theory and Observation in the Gaia Era (Published title 'Star Formation in the Gaia Era') (2016)
Journal Article
Wright, N. (2016). The Kinematics of Star Formation: Theory and Observation in the Gaia Era (Published title 'Star Formation in the Gaia Era'). Astronomy and Geophysics, 37-42. https://doi.org/10.1093/astrogeo/atw042

The European Space Agency's Gaia space telescope, launched in 2013, aims to measure the positions, parallaxes, and proper motions of a billion stars in our Galaxy and throughout the Local Group. In doing so it will include hundreds of thousands of yo... Read More about The Kinematics of Star Formation: Theory and Observation in the Gaia Era (Published title 'Star Formation in the Gaia Era').

X-ray emission from massive stars in CYG OB2 (2015)
Journal Article
Wright. (2015). X-ray emission from massive stars in CYG OB2. Astrophysical Journal Supplement, https://doi.org/10.1088/0067-0049/221/1/1

We report on the analysis of the Chandra-ACIS data of O, B, and WR stars in the young association Cyg OB2. X-ray spectra of 49 O-stars, 54 B-stars, and 3 WR-stars are analyzed and for the brighter sources, the epoch dependence of the X-ray fluxes is... Read More about X-ray emission from massive stars in CYG OB2.

New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+ (2015)
Journal Article
Wright. (2015). New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+. Monthly Notices of the Royal Astronomical Society, 3855-3873. https://doi.org/10.1093/mnras/stv843

O and early B stars are at the apex of galactic ecology, but in the Milky Way, only a minority of them may yet have been identified. We present the results of a pilot study to select and parametrize OB star candidates in the Southern Galactic plane,... Read More about New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+.

A 3D extinction map of the northern Galactic plane based on IPHAS photometry (2014)
Journal Article
Sale, S., Drew, J., Barentsen, G., Farnhill, H., Raddi, R., Barlow, M., …Wright, N. (2014). A 3D extinction map of the northern Galactic plane based on IPHAS photometry. Monthly Notices of the Royal Astronomical Society, 2907-2922. https://doi.org/10.1093/mnras/stu1090

We present a 3D map of extinction in the northern Galactic plane derived using photometry from the INT/WFC Photometric Ha Survey of the northern Galactic plane. The map has fine angular (~10 arcmin) and distance (100 pc) sampling allied to a signific... Read More about A 3D extinction map of the northern Galactic plane based on IPHAS photometry.

First release of the IPHAS catalogue of new extended planetary nebulae (2014)
Journal Article
Wright, N. J. (2014). First release of the IPHAS catalogue of new extended planetary nebulae. Monthly Notices of the Royal Astronomical Society, 3388-3401. https://doi.org/10.1093/mnras/stu1404

We present the first results of our search for new, extended planetary nebulae (PNe) based on careful, systematic, visual scrutiny of the imaging data from the Isaac Newton Telescope Photometric Ha Survey of the Northern Galactic plane (IPHAS). The n... Read More about First release of the IPHAS catalogue of new extended planetary nebulae.

Dynamical evolution of star-forming regions (2013)
Journal Article
Parker, R. J., Wright, N. J., Goodwin, S. P., & Meyer, M. R. (2013). Dynamical evolution of star-forming regions. Monthly Notices of the Royal Astronomical Society, 438(1), 620-638. https://doi.org/10.1093/mnras/stt2231

We model the dynamical evolution of star-forming regions with a wide range of initial properties. We follow the evolution of the regions’ substructure using the Q-parameter, we search for dynamical mass segregation using the ?MSR technique, and we al... Read More about Dynamical evolution of star-forming regions.

Dynamical evolution of star-forming regions (2013)
Journal Article
Wright. (2013). Dynamical evolution of star-forming regions. Monthly Notices of the Royal Astronomical Society, 620-638. https://doi.org/10.1093/mnras/stt2231

We model the dynamical evolution of star-forming regions with a wide range of initial properties. We follow the evolution of the regions’ substructure using the Q-parameter, we search for dynamical mass segregation using the ?MSR technique, and we al... Read More about Dynamical evolution of star-forming regions.