EVIDENCE FOR ELLIPSOIDAL VARIATIONS OF THE BE-STAR BINARY HD-50123

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dc.contributor.authorSTERKEN, C
dc.contributor.authorVOGT, N
dc.contributor.authorMENNICKENT, R
dc.date.accessioned2025-01-21T01:35:09Z
dc.date.available2025-01-21T01:35:09Z
dc.date.issued1994
dc.description.abstractOn the basis of 8 years of photoelectric monitoring in the Stromgren system we were able to establish that HD 50123 is an interacting binary consisting of a B6 Ve primary and an early K giant secondary which fills its Roche lobe. The orbital period is 28.601 days. The secondary contributes considerably to the flux in the y and b bands, in which the double-sinusoidal light curve typical for ellipsoidal variables is seen. A few published radial velocities of the primary are consistent with a semiamplitude of K-1 = 25 +/- 6 km s(-1), and a mass function f(M) = 0.046 +/- 0.026 M.. Preliminary estimates of the stellar masses give 5 and 1.5 M., respectively, for primary and secondary. Some implications for the binary interpretation of Be stars, as well as for the period distribution of ellipsoidal variables, are discussed.
dc.fuente.origenWOS
dc.identifier.issn0004-6361
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97647
dc.identifier.wosidWOS:A1994PT86200015
dc.issue.numero2
dc.language.isoen
dc.pagina.final480
dc.pagina.inicio473
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectSTARS, BE
dc.subjectSTARS, BINARIES, SPECTROSCOPIC
dc.subjectSTARS, INDIVIDUAL, HD 50123
dc.subjectSTARS, ACTIVITY
dc.titleEVIDENCE FOR ELLIPSOIDAL VARIATIONS OF THE BE-STAR BINARY HD-50123
dc.typeartículo
dc.volumen291
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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