Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/2770
Title: | High Resolution Spectroscopy of QY Sge |
Authors: | Kameswara Rao, N Goswami, A Lambert, D. L |
Keywords: | Star:Individual QY: Sge:Variable |
Issue Date: | Sep-2002 |
Publisher: | Astronomical Society of India |
Citation: | BASI, Vol. 30, No. 3, pp. 671 - 674 |
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. |
URI: | http://hdl.handle.net/2248/2770 |
Appears in Collections: | BASI Publications |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.