V and R light curves of GSC 3822-1056 Virtual Observatory Resource

Authors
  1. Csizmadia Sz.
  2. Biro I>B>
  3. Borkovits T.
  4. Published by
    CDS
Abstract

Here we present the first Johnson-Cousins VR_C_ light curves of the over-contact binary star GSC 3822-1056. A period study and the light curve solution are also given. An extremely high rate of period increase +11.6sec/century was found. The origin of this period change can be: (i) partly covered light-time effect due to the orbital motion around the mass center of a possible third body; (ii) mass transfer between the components. The light curve was solved by the 1998 Wilson-Devinney Code. We examined the light curve with and without third light. Both solutions yielded a contact configuration with high temperature difference between the components. Despite the high degree of the contact (f=0.57), the temperature difference between the components {Delta}T=T_primary_-T_secondary_=1045K. The high mass-ratio of the system and its other unusual properties suggest that GSC 3822-1056 may be a recently formed contact binary.

Keywords
  1. eclipsing-binary-stars
  2. visible-astronomy
  3. Wide-band photometry
  4. kron-cousins-photometry
Bibliographic source Bibcode
2003A&A...403..637C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/403/637
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/403/637
Document Object Identifer DOI
doi:10.26093/cds/vizier.34030637

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/403/637
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/403/637
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/403/637
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https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2003-06-01T12:27:05Z
Resource record created
2003-06-01T12:27:05Z
Created
2017-06-27T06:38:32Z
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