On the nature of Be/X-ray binaries

dc.creatorNegueruela, Ignacio
dc.date1998-07-15
dc.date.accessioned2026-07-07T10:48:03Z
dc.date.available2026-07-07T10:48:03Z
dc.descriptionIt has been suggested that most Be/X-ray binaries are low X-ray luminosity nearby objects, containing white dwarfs (Chevalier & Ilovaisky 1998). We show that existing evidence indicates that all known Be/X-ray binaries are relatively bright X-ray sources containing neutron stars and that the spectral distribution of this group differs considerably from that of isolated Be stars. We suggest that the different X-ray properties of the systems can be explained by the sizes of the orbits of the neutron stars. Systems with close orbits are bright transients which show no quiescent emission as a consequence of centrifugal inhibition of accretion. Systems with wide orbits are persistent sources and display no large outbursts. Systems with intermediate orbits present a mixture of both behaviours.
dc.description6 pages (LaTeX, requires l-aa.sty), including 1 figure (PostScript, called with epsfig). Accepted for publication in Astronomy & Astrophysics
dc.identifierhttps://arxiv.org/abs/astro-ph/9807158
dc.identifierhttp://arxiv.org/abs/astro-ph/9807158
dc.identifierAstron.Astrophys.338:505,1998
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183744
dc.subjectAstrophysics
dc.titleOn the nature of Be/X-ray binaries
dc.typetext

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