Gaia/IPHAS catalogue of Ha-excess sources Virtual Observatory Resource

Authors
  1. Fratta M.
  2. Scaringi S.
  3. Drew J.E.
  4. Monguio M.
  5. Knigge C.
  6. Maccarone T.J.
  7. Court J.M.C.
  8. Ilkiewicz K.A.
  9. Pala A.F.
  10. Gandhi P.
  11. Gaensicke B.
  12. Published by
    CDS
Abstract

We present a catalogue of point-like H{alpha}-excess sources in the Northern Galactic Plane. Our catalogue is created using a new technique that leverages astrometric and photometric information from Gaia to select H{alpha}-bright outliers in the INT Photometric H{alpha} Survey of the Northern Galactic Plane (IPHAS), across the colour-absolute magnitude diagram. To mitigate the selection biases due to stellar population mixing and to extinction, the investigated objects are first partitioned with respect to their positions in the Gaia colour-absolute magnitude space, and in the Galactic coordinates space, respectively. The selection is then performed on both partition types independently. Two significance parameters are assigned to each target, one for each partition type. These represent a quantitative degree of confidence that the given source is a reliable H{alpha}-excess candidate, with reference to the other objects in the corresponding partition. Our catalogue provides two flags for each source, both indicating the significance level of the H{alpha}-excess. By analysing their intensity in the H{alpha} narrow band, 28496 objects out of 7474835 are identified as H{alpha}-excess candidates with a significance higher than 3. The completeness fraction of the H{alpha} outliers selection is between 3% and 5%. The suggested 5sigma conservative cut yields a purity fraction of 81.9%.

Keywords
  1. Accretion
  2. Cataclysmic variable stars
  3. Galaxy planes
  4. Milky Way Galaxy
  5. Optical astronomy
  6. H alpha photometry
  7. Photometry
Bibliographic source Bibcode
2021MNRAS.505.1135F
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/505/1135
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/505/1135
Document Object Identifer DOI

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/505/1135
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/505/1135
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/505/1135
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/505/1135/haexlit?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/505/1135/haexlit?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/505/1135/haexlit?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/505/1135/haexfull?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/505/1135/haexfull?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/505/1135/haexfull?

History

2021-06-14T14:26:46Z
Resource record created
2021-06-14T14:26:46Z
Created
2022-05-31T13:29:30Z
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