Spectral analysis of lbv stars in m31: Af and and Var 15

dc.contributor.author	Valeev A.
dc.contributor.author	Sholukhova O.
dc.contributor.author	Fabrika S.
dc.date.accessioned	2018-09-18T20:25:41Z
dc.date.available	2018-09-18T20:25:41Z
dc.date.issued	2014
dc.identifier.issn	1743-9213
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/139768
dc.description.abstract	Copyright © International Astronomical Union 2015. We study spectra of two bona fide LBV stars in M31: AF And and Var 15. The spectra were obtained with the 6-m telescope (Russia) from 2005 to 2012. The model spectra were calculated with the CMFGEN code. We have not found strong changes in the spectra of the LBV stars in that time interval, however a certain variability has been detected. We estimate the star and wind parameters, such as luminosity, temperature, raduis, mass loss rate, escape velocity, hydrogen content, and reddening. We study the stars on the Hertzsprung-Russell diagram and find their initial masses using evolutionary tracks by Meynet et al. (1994).
dc.relation.ispartofseries	Proceedings of the International Astronomical Union
dc.subject	individual (AF And
dc.subject	Var 15)
dc.title	Spectral analysis of lbv stars in m31: Af and and Var 15
dc.type	Conference Paper
dc.relation.ispartofseries-volume	9
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	146
dc.source.id	SCOPUS17439213-2014-9-SID84921535810

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