UV-excess sources from UVEX Virtual Observatory Resource

Authors
  1. Verbeek K.
  2. De Groot E.
  3. Groot P.J.
  4. Scaringi S.
  5. Drew J.
  6. Greimel R.,Irwin M.
  7. Gonzalez-Solares E.
  8. Gansicke B.T.
  9. Casares J.,Corral-Santana J.M.
  10. Deacon N.
  11. Steeghs D.
  12. Published by
    CDS
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 HeI{lambda}5875 bands in the Galactic latitude range -5<b<+5{deg}. 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.

Keywords
  1. galaxies
  2. catalogs
  3. ultraviolet-astronomy
  4. photometry
Bibliographic source Bibcode
2012MNRAS.420.1115V
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/420/1115
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/420/1115
Document Object Identifer DOI
doi:10.26093/cds/vizier.74201115

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/420/1115
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/420/1115
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/420/1115
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/420/1115/uvex?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/420/1115/uvex?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/420/1115/uvex?

History

2012-10-10T17:06:54Z
Resource record created
2012-10-10T17:06:54Z
Created
2024-07-16T20:12:27Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr