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Caught in flagrante delicto: Evidence for past mass transfer in massive binaries?

Rauw, Grégor

2024 • In Bulletin de la Société Royale des Sciences de Liège, 93 (3), p. 58-84

Peer reviewed

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https://hdl.handle.net/2268/325996

DOI
10.25518/0037-9565.12266

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Keywords :

Stellar evolution; Binary Systems; Massive Stars

Abstract :

[en] Many massive binary systems undergo mass and angular momentum transfer over the course of their evolution. This kind of interaction is expected to deeply affect the properties of the mass donor and mass gainer and to leave various observational signatures. The most common smoking guns of a past mass transfer episode are notably rapid rotation of the mass gainer and altered surface chemical abundances of the stripped mass donor star. Quantitative observational studies of evolved massive binaries are crucial to gain insight into poorly constrained parameters of binary evolution models such as the fraction of mass lost by the mass donor that is actually accreted by the mass gainer. Yet, drawing conclusions about a past mass transfer episode requires a detailed analysis of all aspects of a binary system which sometimes leads to unexpected results. In this contribution, we review the existing observational evidence for past mass exchange events in massive main-sequence and post main-sequence binaries.

Research Center/Unit :

STAR - Space sciences, Technologies and Astrophysics Research - ULiège

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Rauw, Grégor ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)

Language :

English

Title :

Caught in flagrante delicto: Evidence for past mass transfer in massive binaries?

Alternative titles :

[fr] Prises en flagrant délit: signatures d'épisodes passés d'échanges de matière dans des binaires massives?

Publication date :

2024

Journal title :

Bulletin de la Société Royale des Sciences de Liège

ISSN :

0037-9565

eISSN :

1783-5720

Publisher :

University of Liege

Special issue title :

Proceedings of the 41st Liège International Astrophysical Colloquium "The eventful Life of massive multiples", held in Liège 15-19 July 2024, eds Y. Nazé & E. Bozzo

Volume :

93

Issue :

3

Pages :

58-84

Peer reviewed :

Peer reviewed

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since 30 December 2024

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