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Massive companions of binary systems

Published online by Cambridge University Press:  07 March 2018

D. Jableka ,
S. Zola ,
B. Zakrzewski ,
J. M. Kreiner  and
W. Ogloza
D. Jableka
Affiliation:
Astronomical Observatory of the Jagiellonian University, Orla 171, 30-244 Krakow, Poland email: jableka@oa.uj.edu.pl
S. Zola
Affiliation:
Astronomical Observatory of the Jagiellonian University, Orla 171, 30-244 Krakow, Poland email: jableka@oa.uj.edu.pl Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland email: szola@oa.uj.edu.pl
B. Zakrzewski
Affiliation:
Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland email: szola@oa.uj.edu.pl
J. M. Kreiner
Affiliation:
Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland email: szola@oa.uj.edu.pl
W. Ogloza
Affiliation:
Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland email: szola@oa.uj.edu.pl
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Abstract

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We examined the O-C diagrams of eclipsing binary systems and selected these exhibiting cyclic shape, either sinusoidal or quasi sinusoidal. Assuming these variations being due to the Light Time Travel effect (LTE), we estimated the parameters of companions with the Monte Carlo method. As a result, we identified nearly two dozen of eclipsing systems that might have companions with a minimum mass larger than that of a neutron star. Their masses fall into the range between 1.7 and 34 solar masses. This sample of triples with high mass companions can be confirmed with the help of observations gathered by Gaia: parallaxes and astrometric measurements.

Keywords

stars: distancesbinaries: eclipsing
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 364 - 365
Copyright
Copyright © International Astronomical Union 2018 

References

Dogru, D., Erdem, A., Dogru, S. S., & Zola, S., 2009, MNRAS, 397, 1647 Google Scholar
Jableka, D., Zola, S., Kreiner, J. M., & Zakrzewski, B., 2013, CEAB, 37, 195 Google Scholar
Kreiner, J. M., 2004, AcA, 54, 207 Google Scholar