dc.contributor.author |
Shimanskii V. |
|
dc.contributor.author |
Yakin D. |
|
dc.contributor.author |
Borisov N. |
|
dc.contributor.author |
Bikmaev I. |
|
dc.date.accessioned |
2018-09-18T20:15:24Z |
|
dc.date.available |
2018-09-18T20:15:24Z |
|
dc.date.issued |
2012 |
|
dc.identifier.issn |
1063-7729 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/138025 |
|
dc.description.abstract |
The results of photometric and spectroscopic observations of the pre-cataclysmic variable HS 2333+3927, which is a HW Vir binary system, are analyzed. The parameters of the sdB subdwarf companion (T eff = 37 500 ± 500 K, log g = 5.7 ± 0.05) and the chemical composition of its atmosphere are refined using a spectrum of the binary system obtained at minimum brightness. Reflection effects can fully explain the observed brightness variations of HS 2333+3927, changes in the HI and HeI line profiles, and distortions of the radial-velocity curve of the primary star. A new method for determining the component-mass ratios in HW Vir binaries, based on their radial-velocity curves and models of irradiated atmospheres, is proposed. The set of parameters obtained for the binary components corresponds to models of horizontal-branch sdB subdwarfs and main-sequence stars. © 2012 Pleiades Publishing, Ltd. |
|
dc.relation.ispartofseries |
Astronomy Reports |
|
dc.title |
Analysis of reflection effects in HS 2333+3927 |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
11 |
|
dc.relation.ispartofseries-volume |
56 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
867 |
|
dc.source.id |
SCOPUS10637729-2012-56-11-SID84868673444 |
|