High Resolution Spectroscopy of the Semi-Regular Variable LR Sco

dc.contributor.author	Giridhar, S
dc.contributor.author	Kameswara Rao, N
dc.contributor.author	Lambert, D. L
dc.date.accessioned	2008-06-16T08:43:00Z
dc.date.available	2008-06-16T08:43:00Z
dc.date.issued	1992
dc.identifier.citation	Journal of Astrophysics and Astronomy, Vol. 13, No. 4, pp. 307 - 318	en
dc.identifier.uri	http://hdl.handle.net/2248/2433
dc.description.abstract	A detailed spectroscopic investigation of LR Sco which was earlier misclassified as R CrB star is made. Atmospheric parameters and elemental abundances are determined using detailed depth-dependent model atmospheres and line synthesis technique. Most of the elements show near solar abundances. The strength of circumstellar components seen in Na D lines are used to derive the mass loss rate. Another independent estimate of mass loss rate is made using the observed infrared flux from 1–100μm. These two approaches lead to nearly the same value of mass loss rate when Mv is assumed to be – 4.5 for this star.	en
dc.format.extent	655463 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences	en
dc.relation.uri	http://www.ias.ac.in/j_archive/jaa/13/vol13contents.html	en
dc.subject	Semi-regular variables	en
dc.subject	abundances—infrared flux—mass loss	en
dc.title	High Resolution Spectroscopy of the Semi-Regular Variable LR Sco	en
dc.type	Article	en