Outputs (79)

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 ).

Physical parameters of IPHAS-selected classical Be stars: I. Determination procedure and evaluation of the results⋆ (2016)
Journal Article
Gkouvelis, L., Fabregat, J., Zorec, J., Steeghs, D., Drew, J. E., Raddi, R., Wright, N. J., & Drake, J. J. (2016). Physical parameters of IPHAS-selected classical Be stars: I. Determination procedure and evaluation of the results⋆. Astronomy & Astrophysics, 591, A140. https://doi.org/10.1051/0004-6361/201527090

We present a semi-automatic procedure to obtain fundamental physical parameters and distances of classical Be (CBe) stars, based on the Barbier-Chalonge-Divan (BCD) spectrophotometric system. Our aim is to apply this procedure to a large sample of CB... Read More about Physical parameters of IPHAS-selected classical Be stars: I. Determination procedure and evaluation of the results⋆.

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.

Globules and pillars in Cygnus X: I.Herschelfar-infrared imaging of the Cygnus OB2 environment⋆ (2016)
Journal Article
Schneider, N., Bontemps, S., Motte, F., Blazere, A., André, P., Anderson, L. D., Arzoumanian, D., Comerón, F., Didelon, P., Di Francesco, J., Duarte-Cabral, A., Guarcello, M. G., Hennemann, M., Hill, T., Könyves, V., Marston, A., Minier, V., Rygl, K. L. J., Röllig, M., Roy, A., …Wright, N. J. (2016). Globules and pillars in Cygnus X: I.Herschelfar-infrared imaging of the Cygnus OB2 environment⋆. Astronomy & Astrophysics, 591, Article A40. https://doi.org/10.1051/0004-6361/201628328

The radiative feedback of massive stars on molecular clouds creates pillars, globules and other features at the interface between the H II  region and molecular cloud. Optical and near-infrared observations from the ground as well as with the Hubble... Read More about Globules and pillars in Cygnus X: I.Herschelfar-infrared imaging of the Cygnus OB2 environment⋆.

Discovery of a long-lived, high-amplitude dusty infrared transient (2016)
Journal Article
Britt, C. T., Maccarone, T. J., Green, J. D., Jonker, P. G., Hynes, R. I., Torres, M. A. P., Strader, J., Chomiuk, L., Salinas, R., Lucas, P., Contreras Peña, C., Kurtev, R., Heinke, C., Smith, L., Wright, N. J., Johnson, C., Steeghs, D., & Nelemans, G. (2016). Discovery of a long-lived, high-amplitude dusty infrared transient. Monthly Notices of the Royal Astronomical Society, 460(3), 2822-2833. https://doi.org/10.1093/mnras/stw1182

We report the detection of an infrared-selected transient which has lasted at least five years, first identified by a large mid-infrared and optical outburst from a faint X-ray source detected with the Chandra X-ray Observatory. In this paper we rule... Read More about Discovery of a long-lived, high-amplitude dusty infrared transient.

Galactic Plane Hα Surveys: IPHAS and VPHAS+ (2016)
Book Chapter
Wright, N. J. (2016). Galactic Plane Hα Surveys: IPHAS and VPHAS+. In The Universe of Digital Sky Surveys (55-59). Springer International Publishing. https://doi.org/10.1007/978-3-319-19330-4_7

The optical Galactic Plane Hα surveys IPHAS and VPHAS+ are dramatically improving our understanding of Galactic stellar populations and stellar evolution by providing large samples of stars in short lived, but important, evolutionary phases, and high... Read More about Galactic Plane Hα Surveys: IPHAS and VPHAS+.

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.

Classical T Tauri stars with VPHAS+ – I. H α andu-band accretion rates in the Lagoon Nebula M8 (2015)
Journal Article
Kalari, V. M., Vink, J. S., Drew, J. E., Barentsen, G., Drake, J. J., Eislöffel, J., Martín, E. L., Parker, Q. A., Unruh, Y. C., Walton, N. A., & Wright, N. J. (2015). Classical T Tauri stars with VPHAS+ – I. H α andu-band accretion rates in the Lagoon Nebula M8. Monthly Notices of the Royal Astronomical Society, 453(1), 1026-1046. https://doi.org/10.1093/mnras/stv1676

We estimate the accretion rates of 235 Classical T Tauri star (CTTS) candidates in the Lagoon Nebula using ugri H α photometry from the VST Photometric H α survey+. Our sample consists of stars displaying H α excess, the intensity of which is used to... Read More about Classical T Tauri stars with VPHAS+ – I. H α andu-band accretion rates in the Lagoon Nebula M8.

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 deep catalogue of classical Be stars in the direction of the Perseus Arm: spectral types and interstellar reddenings (2014)
Journal Article
Raddi, R., Drew, J. E., Steeghs, D., Wright, N. J., Drake, J. J., Barentsen, G., Fabregat, J., & Sale, S. E. (2015). A deep catalogue of classical Be stars in the direction of the Perseus Arm: spectral types and interstellar reddenings. Monthly Notices of the Royal Astronomical Society, 446(1), 274-298. https://doi.org/10.1093/mnras/stu2090

We present a catalogue of 247 photometrically and spectroscopically confirmed fainter classical Be stars (13 ≲ r ≲ 16) in the direction of the Perseus Arm of the Milky Way (−1° < b < +4°, 120° < ℓ < 140°). The catalogue consists of 181 IPHAS-selected... Read More about A deep catalogue of classical Be stars in the direction of the Perseus Arm: spectral types and interstellar reddenings.