CK Aqr time keeping. Evidence for a third body

Michel Bonnardeau

CK Aqr time keeping. Evidence for a third body

Solar and Stellar Astrophysics 2021-04-13 v1

Authors: Michel Bonnardeau

Abstract

Photometric measurements of the contact binary system CK Aqr are presented. 49 new times of minimum were obtained between 2005 and 2020. Along with already published observations, this allows the derivation of an improved ephemeris. The resulting O-C diagram shows oscillations which are interpreted as the light time travel effect due to a third component, with a period of 8.2 years.

Cite

@article{arxiv.2104.04957,
  title  = {CK Aqr time keeping. Evidence for a third body},
  author = {Michel Bonnardeau},
  journal= {arXiv preprint arXiv:2104.04957},
  year   = {2021}
}

Comments

8 pages, 5 figures

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