ASAS-SN eclipsing contact binaries with Gaia DR3 Virtual Observatory Resource

Authors
  1. Li X.-Z.
  2. Zhu Q.-F.
  3. Ding Xu
  4. Xu X.-H.
  5. Zheng H.
  6. Qiu J.-S.
  7. Liu M.-C.
  8. Published by
    CDS
Abstract

Starting from more than 11200 short-period (less than 0.5 days) EW-type eclipsing binary candidates with the All-Sky Automated Survey for Supernovae V-band light curves, we use the Markov Chain Monte Carlo algorithm and neural networks to obtain the mass ratio (q), orbital inclination (incl), fill-out factor (f), and temperature ratio (Ts/Tp). After crossmatching with the Gaia DR3 database, the final sample contains parameters of 2399 A-type and 8712 W-type contact binaries (CBs). We present the distributions of parameters of these 11111 short-period CBs. The mass ratio (q) and fill-out factor (f) are found to obey log-normal distributions, and the remaining parameters obey normal distributions. There is a significant period-temperature correlation of these CBs. Additionally, the temperature ratio (Ts/Tp) tends to increase as the orbital period decreases for W-type CBs. There is no significant correlation between them for A-type CBs. The mass ratio and fill-out factor (q-f) diagram suggest there is no significant correlation between these two parameters. A clear correlation exists between the mass ratio and radius ratio. The radius ratio increases with the mass ratio. Moreover, the deep fill-out CBs tend to fall on the upper boundary of the q-Rs/Rp distribution, while the shallow fill-out CBs fall on the lower boundary.

Keywords
  1. eclipsing-binary-stars
  2. effective-temperature
  3. stellar-radii
Bibliographic source Bibcode
2024ApJS..271...32L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/271/32
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/271/32
Document Object Identifer DOI
doi:10.26093/cds/vizier.22710032

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/271/32
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/271/32
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/271/32
IVOA Table Access TAP
https://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/ApJS/271/32/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/271/32/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/271/32/table1?

History

2024-07-02T12:10:55Z
Resource record created
2024-07-02T12:10:55Z
Created
2024-11-06T20:31:14Z
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