Ellipsoidal effect in the symbiotic star YY Her
M. Wiecek, M. Mikolajewski, T. Tomov, E. Swierczynski, C. Galan, P., Wychudzki
TL;DR
This paper presents a new estimate of the orbital period of the symbiotic star YY Her, highlighting the ellipsoidal effect caused by tidal distortion of the giant star, based on observational data.
Contribution
It provides the first detailed analysis of the ellipsoidal effect in YY Her and refines its orbital period using combined observational data.
Findings
Refined orbital period estimate for YY Her
Detection of ellipsoidal variation in light curves
Evidence of tidal distortion in the giant star
Abstract
A new estimation of the orbital period of YY Her on the base of our and published observations is presented. Phased light curves in RI bands show evidently ellipsoidal effect connected with the tidal distortion of the giant surface.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astrophysics and Star Formation Studies · Astro and Planetary Science