Stellar modelling of Spica, a high-mass spectroscopic binary with a β Cep variable primary component

Tkachenko Andrew; Matthews J M; Aerts Conny; Pavlovski K; Pápics P I; Zwintz K; Cameron C; Walker Gah; Kuschnig R; Degroote P; Debosscher Jonas; Moravveji Ehsan; Kolbas V; Guenther D B; Moffat Afj; Rowe J F; Rucinski S M; Sasselov D; Weiss W W

Stellar modelling of Spica, a high-mass spectroscopic binary with a β Cep variable primary component

Authors

Andrew, Tkachenko
J M, Matthews
Conny, Aerts
K, Pavlovski
P I, Pápics
K, Zwintz
C, Cameron
Gah, Walker
R, Kuschnig
P, Degroote
Jonas, Debosscher
Ehsan, Moravveji
V, Kolbas
D B, Guenther
Afj, Moffat
Jason Rowe
S M, Rucinski
D, Sasselov
W W, Weiss

Type

Published Article

Journal

Monthly Notices of the Royal Astronomical Society

Publisher

Oxford University Press

Publication Date

May 10, 2016

Volume

458

Issue

2

Pages

1964–1976

Source

SETI Institute

License

Unknown

Abstract

Binary stars provide a valuable test of stellar structure and evolution, because the masses of the individual stellar components can be derived with high accuracy and in a model-independent way. In this work, we study Spica, an eccentric double-lined spectroscopic binary system with a β Cep type variable primary component. We use state-of- the-art modelling tools to determine accurate orbital elements of the binary system and atmospheric parameters of both stellar components. We interpret the short-period ...

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