dc.contributor.author |
Shimansky V. |
|
dc.contributor.author |
Borisov N. |
|
dc.contributor.author |
Bikmaev I. |
|
dc.contributor.author |
Shimanskaya N. |
|
dc.date.accessioned |
2018-09-18T20:15:25Z |
|
dc.date.available |
2018-09-18T20:15:25Z |
|
dc.date.issued |
2012 |
|
dc.identifier.issn |
1063-7729 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/138029 |
|
dc.description.abstract |
We have performed spectroscopy and photometry of eclipses of the pre-cataclysmic variable UUSge using the 6-m telescope of the Special AstrophysicalObservatory and the 1. 5-mRussian-Turkish telescope. Our analysis of variations of the B-V and V-R color indices during the eclipses indicates that the temperature of the secondary is T eff,2 = 6000-6300 K. A similar value, T eff,2 = 6200 ± 200 K, follows from our comparison of the observed spectrum of UU Sge at the total eclipse phase and theoretical spectra of late-type stars. We identify 27 absorption lines of 11 chemical elements in the secondary's spectrum. Their abnormal intensities indicate possible high-velocity turbulent motions (up to ξ turb = 10. 0 km/s) in the atmosphere of the star and the presence of hot gas above its surface. © 2012 Pleiades Publishing, Ltd. |
|
dc.relation.ispartofseries |
Astronomy Reports |
|
dc.title |
Observations of eclipses of UU Sge |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
6 |
|
dc.relation.ispartofseries-volume |
56 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
456 |
|
dc.source.id |
SCOPUS10637729-2012-56-6-SID84861884828 |
|