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Comparison of the Hα circumstellar disks in Be/X-ray binaries and Be stars

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Comparison of the Hα circumstellar disks in Be/X-ray binaries and Be stars

dc.contributor.author	Zamanov, R.K.
dc.contributor.author	Reig Torres, Pablo
dc.contributor.author	Martí, J.
dc.contributor.author	Coe, M.J.
dc.contributor.author	Fabregat Llueca, Juan
dc.contributor.author	Tomov, N.A.
dc.contributor.author	Valchev, T.
dc.date.accessioned	2010-06-18T11:09:38Z
dc.date.available	2010-06-18T11:09:38Z
dc.date.issued	2001
dc.identifier.citation	ZAMANOV, R.K. ; Reig Torres, Pablo ; Martí, J. ; Coe, M.J. ; Fabregat Llueca, Juan ; Tomov, N.A. ; Valchev, T., 2001, Comparison of the Hα circumstellar disks in Be/X-ray binaries and Be stars, Astronomy and Astrophysics, vol. 367, no. 3, p. 884-890	en
dc.identifier.uri	http://hdl.handle.net/10550/13000
dc.description.abstract	We present a comparative study of the circumstellar disks in Be/X-ray binaries and isolated Be stars based upon the Hα emission line. From this comparison it follows that the overall structure of the disks in the Be/X-ray binaries is similar to the disks of other Be stars, i.e. they are axisymmetric and rotationally supported. The factors for the line broadening (rotation and temperature) in the disks of the Be stars and the Be/X-ray binaries seem to be identical. However, we do detect some intriguing differences between the envelopes. On average, the circumstellar disks of the Be/X-ray binaries are twice as dense as the disks of the isolated Be stars. The different distribution of the Be/X-ray binaries and the Be stars seen in the full with half maximum versus peak separation diagram indicates that the disks in Be/X-ray binaries have on average a smaller size, probably truncated by the compact object.	en
dc.language.iso	en	en
dc.subject	Stars ; Emission ; Be star ; Circumstellar matter ; Binaries ; X-rays	en
dc.title	Comparison of the Hα circumstellar disks in Be/X-ray binaries and Be stars	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA	en
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia	en
dc.identifier.doi	10.1051/0004-6361:20000533	en
dc.identifier.idgrec	030378	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/pdf/2001/09/aa9968.pdf	en