Analysis of magnetic activity of the rapidly rotating stars He 373 and AP 225

dc.contributor.author	Kolbin A.
dc.contributor.author	Tsymbal V.
dc.date.accessioned	2018-09-19T20:51:30Z
dc.date.available	2018-09-19T20:51:30Z
dc.date.issued	2017
dc.identifier.issn	1063-7729
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/143349
dc.description.abstract	© 2017, Pleiades Publishing, Ltd.Spectroscopic and photometric data for the two rapidly rotating members of the α Persei cluster He 373 and AP 225 are analyzed. Improved estimates have been obtained for the projected equatorial rotation velocities: v sin i = 164 km/s for He 323 and v sin i = 129 km/s for AP 225. Multi-band photometric mapping is used to map the spot distributions on the surfaces of the two stars. The fractional spotted areas S and mean temperature difference ΔT between the unspotted photosphere and the spots are estimated (S = 7% and ΔT = 1000 K for He 373; S = 9% and ΔT = 800 K for AP 225). The Hα line profiles of both stars have variable emission components whose widths are used to deduce the presence of extended regions of emission reaching the corotation radius.
dc.relation.ispartofseries	Astronomy Reports
dc.title	Analysis of magnetic activity of the rapidly rotating stars He 373 and AP 225
dc.type	Article
dc.relation.ispartofseries-issue	6
dc.relation.ispartofseries-volume	61
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	521
dc.source.id	SCOPUS10637729-2017-61-6-SID85020167449

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Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.