High Resolution Spectroscopy of QY Sge

dc.contributor.author	Kameswara Rao, N
dc.contributor.author	Goswami, A
dc.contributor.author	Lambert, D. L
dc.date.accessioned	2008-07-21T11:06:27Z
dc.date.available	2008-07-21T11:06:27Z
dc.date.issued	2002-09
dc.identifier.citation	BASI, Vol. 30, No. 3, pp. 671 - 674	en
dc.identifier.uri	http://hdl.handle.net/2248/2770
dc.description.abstract	High resolution spectral analysis of QY Sge, a post AGB star is presented here. The spectrum of QY Sge is characterized by three major components: absorption lines representative of a G supergiant, sharp emission lines from resonance and low excitation transitions of abundant neutral atoms, and broad emission lines of Na D and K lines at 7665 A and 7699 A. The star is a velocity variable. The radial velocities of the star as measured from a set of unblended absorption lines are estimated as '" -21 kms-1 for 1999 and '" -23 kms-1 for 2000 spectrum. An abundance analysis shows that the star is of approximately solar composition but with the highly condensable elements (e.g, Sc and Ti), depleted by factors of 5 to 10.	en
dc.format.extent	151617 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	Star:Individual	en
dc.subject	QY: Sge:Variable	en
dc.title	High Resolution Spectroscopy of QY Sge	en
dc.type	Article	en