Short-period binaries in the inner VVV bulge Virtual Observatory Resource

Authors
  1. Botan E.
  2. Saito R.K.
  3. Minniti D.
  4. Kanaan A.
  5. Contreras Ramos R.,Ferreira T.S.
  6. Gramajo L.V.
  7. Navarro M.G.
  8. Published by
    CDS
Abstract

Most of our knowledge of the structure of the Milky Way has come from the study of variable stars. Among these variables, mimicking the periodic variation of pulsating stars, are eclipsing binaries. These stars are important in astrophysics because they allow us to directly measure the radii and masses of the components, as well as the distance to the system, thus being useful in studies of Galactic structure alongside pulsating RR Lyrae and Cepheids. Using the distinguishing features of their light curves, one can identify them using a semi-automated process. In this work, we present a strategy to search for eclipsing variables in the inner VVV bulge across an area of 13.4 deg^2^ within 1.68{deg} < l < 7.53{deg} and -3.73{deg} < b < -1.44{deg}, corresponding to the VVV tiles b293-b296 and b307-b310. We accurately classify 212 previously unknown eclipsing binaries, including six very reddened sources. A preliminary analysis suggests that these eclipsing binaries are located in the most obscured regions of the foreground disc and bulge of the Galaxy. This search is therefore complementary to other variable-star searches carried out at optical wavelengths.

Keywords
  1. milky-way-galaxy
  2. eclipsing-binary-stars
  3. galactic-center
  4. infrared-sources
  5. infrared-photometry
  6. extinction
  7. interstellar-reddening
Bibliographic source Bibcode
2021MNRAS.504..654B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/504/654
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/504/654
Document Object Identifer DOI
doi:10.26093/cds/vizier.75040654

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/504/654
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/504/654
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/504/654
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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/504/654/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/504/654/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/504/654/tablea1?

History

2024-05-14T08:02:58Z
Resource record created
2024-05-14T08:02:58Z
Created
2024-11-06T20:33:47Z
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