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A first catalogue of automatically selected ultraviolet-excess sources from the UVEX survey
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Verbeek, Kars, de Groot, E., Groot, P. J. (Paul J.), Scaringi, S., Drew, J. E., Greimel, R., Irwin, M. J., Gonzalez-Solares, E. A., Gänsicke, B. T. (Boris T.), Casares, J., Corral-Santana, Jesus M., Deacon, N. R. and Steeghs, D. (Danny), 1972-. (2012) A first catalogue of automatically selected ultraviolet-excess sources from the UVEX survey. Monthly Notices of the Royal Astronomical Society, Vol.420 (No.2). pp. 1115-1134. ISSN 0035-8711
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WRAP_Steeghs_UVEX_1111.0440v1.pdf - Accepted Version Download (5Mb) | Preview |
Official URL: http://dx.doi.org/10.1111/j.1365-2966.2011.20094.x
Abstract
We present the first catalogue of point-source ultraviolet (UV)-excess sources selected from the UV-Excess Survey of the Northern Galactic Plane (UVEX). UVEX images the Northern Galactic Plane in the U, g, r and He Iota lambda 5875 bands in the Galactic latitude range -5 degrees < b < +5 degrees. Through an automated algorithm, which works on a field-to-field basis, we select blue UV-excess sources in 211 square degrees from the (U-g) versus (g-r) colour-colour diagram and the g versus (U-g) and g versus (g-r) colour-magnitude diagrams. The UV-excess catalogue covers the magnitude range 14 < g < 22.5, contains 2170 sources and consists of a mix of white dwarfs, post-common-envelope objects, interacting binaries, quasars and active galactic nuclei. Two other samples of outliers were found during the selection: (i) a subdwarf sample, consisting of no less than 9872 candidate metal-poor stars or lightly reddened main-sequence stars, and (ii) a purple sample consisting of 803 objects, most likely a mix of reddened late M giants, T Tauri stars, planetary nebulae, symbiotic stars and carbon stars. Cross-matching the selected UV-excess catalogue with other catalogues aids with the first classification of the different populations and shows that more than 99 per cent of our selected sources are unidentified sources.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Faculty of Science > Physics |
| Library of Congress Subject Headings (LCSH): | Stars, Galaxies -- Structure |
| Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society |
| Publisher: | Wiley-Blackwell Publishing, Inc |
| ISSN: | 0035-8711 |
| Date: | February 2012 |
| Volume: | Vol.420 |
| Number: | No.2 |
| Number of Pages: | 20 |
| Page Range: | pp. 1115-1134 |
| Identification Number: | 10.1111/j.1365-2966.2011.20094.x |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Funder: | United States. National Aeronautics and Space Administration (NASA), National Science Foundation (U.S.) (NSF), Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organisation for Scientific Research] (NWO) |
| Grant number: | 614.000.601 (NWO-EW) |
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| URI: | http://wrap.warwick.ac.uk/id/eprint/42164 |
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