KIC 9832227 light curves Virtual Observatory Resource

Authors
  1. Kovacs G.
  2. Hartman
  3. J.D.
  4. Bakos A.G.
  5. Published by
    CDS
Abstract

We revisit the issue of period variation of the recently claimed red nova precursor candidate KIC 9832227. By using the data gathered during the main mission of the Kepler satellite, and data collected by ground-based wide-field surveys and other monitoring programs (such as ASAS-SN), we find that the currently available timing data strongly support a model consisting of the known W UMa binary and a distant low-mass companion with an orbital period of ~13.5 years. The period of the W UMa component exhibits a linear period decrease at a rate of (1.10+/-0.05)x10^-6^ days per year, within the range of many other similar systems. This rate of decrease is several orders of magnitude lower than that of V1309 Sco, the first (and so far the only) well-established binary precursor of a nova observed a few years before the outburst. The high-fidelity fit of the timing data and the conformity of the derived minimum mass of (0.38+/-0.02)M_{sun}_ of the outer companion from these data with the limit posed by the spectroscopic non-detection of this component are in agreement with the suggested hierarchical nature of this system.

Keywords
  1. eclipsing-binary-stars
  2. spectroscopic-binary-stars
  3. photometry
Bibliographic source Bibcode
2019A&A...631A.126K
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/631/A126
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/631/A126
Document Object Identifer DOI
doi:10.26093/cds/vizier.36310126

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/631/A126
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/631/A126
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/631/A126
IVOA Table Access TAP
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Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2019-11-06T07:03:20Z
Resource record created
2019-11-06T06:13:03Z
Updated
2019-11-06T07:03:20Z
Created

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