Observational Constraints on Close Binary Star Evolution. I. Putative Contact Binaries with Long Periods and High Mass Ratios

Evolutionary and structural models for contact binary stars make quantitative predictions about the distribution of systems in the mass ratio ( q )–orbital period ( P ) plane. Specifically, contact binaries containing primaries with convective envelopes are predicted to be absent at mass ratios larg...

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Bibliographic Details

Published in:	The Astronomical Journal
Main Authors:	Evan M. Cook, Henry A. Kobulnicky
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Subjects:	Contact binary stars Close binary stars Multiple star evolution Stellar evolutionary tracks Stellar evolutionary models Ellipsoidal variable stars
Online Access:	https://doi.org/10.3847/1538-3881/acfc47