The mass and helium discrepancy in massive stars: the case VELA X-1

Bibcode
1993SSRv...66..395V
DOI
10.1007/BF00771089
Vanbeveren, D.; Herrero, A.; Kunze, D.; van Kerkwijk, M.
Referencia bibliográfica

Space Science Reviews, Volume 66, Issue 1-4, pp. 395-400

Fecha de publicación:
3
1993
Revista
Space Science Reviews
Número de autores
4
Número de autores del IAC
0
Número de citas
12
Número de citas referidas
8
Descripción
A NLTE-analysis is presented of high S/N spectra of the optical component of the standard massive X-ray binary Vela X-1. In combination with the orbital parameters we conclude that the optical star is highly helium enriched and is significantly overluminous compared to standard evolutionary tracks of massive accretion stars. We then propose a new accretion model able to explain these features.
Tipo
Sin árbitro

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