Spectral types of four binaries based on photometric observations

dc.contributor.author	Shimanskii V.
dc.contributor.author	Bikmaev I.
dc.contributor.author	Borisov N.
dc.contributor.author	Vlasyuk V.
dc.contributor.author	Galeev A.
dc.contributor.author	Sakhibullin N.
dc.contributor.author	Spiridonova O.
dc.date.accessioned	2018-09-18T20:15:22Z
dc.date.available	2018-09-18T20:15:22Z
dc.date.issued	2008
dc.identifier.issn	1063-7729
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/138021
dc.description.abstract	We present results of photometric and spectroscopic observations of four close binaries with subdwarf B components: PG 0918+029, PG 1000+408, PG 1116+301, PG 0001+275. We discovered that PG 1000+408 is a close binary, with the most probable orbital period being Porb = 1.041145 day. Based on a comparison of the observed light curves at selected orbital phases and theoretical predictions for their variations, all the systems are classified as doubly degenerate binaries with low-luminosity white-dwarf secondaries. © 2008 Pleiades Publishing, Ltd.
dc.relation.ispartofseries	Astronomy Reports
dc.title	Spectral types of four binaries based on photometric observations
dc.type	Article
dc.relation.ispartofseries-issue	9
dc.relation.ispartofseries-volume	52
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	729
dc.source.id	SCOPUS10637729-2008-52-9-SID51749102623

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