The dependence of He I 10830 absorption on X-ray luminosity in RS CVn binaries and very active F and G main-sequence stars

dc.contributor.author	Mekkaden, M. V
dc.date.accessioned	2009-02-04T16:34:13Z
dc.date.available	2009-02-04T16:34:13Z
dc.date.issued	1985-03
dc.identifier.citation	Astrophysics and Space Science, Vol. 110, No. 2, pp. 413 - 416	en
dc.identifier.issn	0004-640X
dc.identifier.uri	http://hdl.handle.net/2248/4332
dc.description.abstract	A study of the relationship between soft X-ray luminosity and He I 10830 equivalent width in RS CVn binaries and very active late-type main-sequence stars is made. Long-period RS CVns and very active F and G main-sequence stars show strong dependence on their X-ray luminosities. This is attributed to the dominance of coronal excitation of the line in these stars. Short-period RS CVn binaries have lower He I 10830 absorption compared to their X-ray emission. This phenomenon is explained by the presence of He I emission region also in their chromospheres.	en
dc.language.iso	en	en
dc.publisher	Kluwer Academic Publishers	en
dc.relation.uri	http://dx.doi.org/10.1007/BF00653689	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1985Ap%26SS.110..413M	en
dc.subject	Absorption Spectra	en
dc.subject	Binary Stars	en
dc.subject	F Stars	en
dc.subject	G Stars	en
dc.subject	Helium Ions	en
dc.subject	Main Sequence Stars	en
dc.subject	Stellar Luminosity	en
dc.subject	X Ray Spectra	en
dc.subject	Spectral Line Width	en
dc.subject	Stellar Atmospheres	en
dc.subject	Stellar Coronas	en
dc.title	The dependence of He I 10830 absorption on X-ray luminosity in RS CVn binaries and very active F and G main-sequence stars	en
dc.type	Article	en