Photometric analysis of two extreme low mass ratio contact binary systems

Surjit S Wadhwa; Nick F H Tothill; Ain Y DeHorta; Miroslav Filipovic

doi:10.1088/1674-4527/21/9/235

Photometric analysis of two extreme low mass ratio contact binary systems

Solar and Stellar Astrophysics 2021-11-17 v1

Authors: Surjit S Wadhwa , Nick F H Tothill , Ain Y DeHorta , Miroslav Filipovic

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Abstract

Multi band photometry and light curve analysis for two newly recognized contact binary systems, TYC 6995-813-1 and NSVS 13602901 are presented. Both were found to be of extreme low mass ratios 0.11 and 0.17, respectively. The secondary components of both systems show evidence of considerable evolution with elevated densities as well as both luminosity and radii well above their main sequence counterparts. Even in the absence of significant spot activity at least one of the systems, TYC 6995-813-1, shows features of magnetic and chromospheric activity. TYC 6995-813-1 is also determined to be a potential merger candidate with its current separation near the theoretical instability separation.

Keywords

eclipsing binary stars electronic structure of materials

Cite

@article{arxiv.2105.12927,
  title  = {Photometric analysis of two extreme low mass ratio contact binary systems},
  author = {Surjit S Wadhwa and Nick F H Tothill and Ain Y DeHorta and Miroslav Filipovic},
  journal= {arXiv preprint arXiv:2105.12927},
  year   = {2021}
}

Comments

10 pages, 3 figures, 1 table

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