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The mass of the compact object in the X-ray binary her X-1/HZ her

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dc.contributor.author Abubekerov M.
dc.contributor.author Antokhina E.
dc.contributor.author Cherepashchuk A.
dc.contributor.author Shimanskii V.
dc.date.accessioned 2018-09-18T20:15:21Z
dc.date.available 2018-09-18T20:15:21Z
dc.date.issued 2008
dc.identifier.issn 1063-7729
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/138015
dc.description.abstract We have obtained the first estimates of the masses of the components of the Her X-1/HZ Her X-ray binary system taking into account non-LTE effects in the formation of the H γ absorption line: m x = 1.8 M⊙ and mv = 2.5 M⊙. These mass estimates were made in a Roche model based on the observed radial-velocity curve of the optical star, HZ Her. The masses for the X-ray pulsar and optical star obtained for an LTE model lie are m x = 0.85 ± 0.15 M⊙ and mv = 1.87 ± 0.13 M⊙. These mass estimates for the components of Her X-1/HZ Her derived from the radial-velocity curve should be considered tentative. Further mass estimates from high-precision observations of the orbital variability of the absorption profiles in a non-LTE model for the atmosphere of the optical component should be made. © 2008 Pleiades Publishing, Ltd.
dc.relation.ispartofseries Astronomy Reports
dc.title The mass of the compact object in the X-ray binary her X-1/HZ her
dc.type Article
dc.relation.ispartofseries-issue 5
dc.relation.ispartofseries-volume 52
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 379
dc.source.id SCOPUS10637729-2008-52-5-SID44149099547


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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