Observations of southern Wolf-Rayet stars - I: The spectroscopic binary HD 90657

The Wolf-Rayet star HD 90657 is found to be a spectroscopic binary with a WN5+O6 spectrum and a period of 6.456 days. Preliminary orbital elements show an elliptic orbit and a mass ratio MWR/Mo∼0.5. Evidence is presented for the Wolf-Rayet atmosphere being accelerated outwards and not being spherica...

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Detalles Bibliográficos
Autor principal:	Niemela, V.S.
Formato:	JOUR
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0004640X_v45_n1_p191_Niemela
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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