Spectroscopic investigation of SDSS J100921.40 +375233.9 selected from SDSS and GALEX photometry

Timur Şahin1,2,3*, David L. Lambert3, and Carlos Allende Prieto4,3
1Department of Space Science and Technologies, Akdeniz University, Antalya, 07058, Turkey
2TUBITAK National Observatory, Akdeniz University Campus, Antalya, 07058, Turkey
3Department of Astronomy and The W. J. McDonald Observatory, University of Texas, Austin, TX 78712, USA
4Instituto de Astrofisica de Canarias, 38205, La Laguna, Tenerife, Spain

View Full Article: [PDF]

Abstract

In this study, we aim to reveal the nature of the Sloan Digital Sky Survey (SDSS) star: SDSS J100921.40+375233.9, suspected to have an extremely low metallicity We observed this star at high spectral resolution and performed an abundance analysis. We derived the spectroscopic parameters Teff =5820±125 K, logg = 3.9±0.2, and ξt = 1.1±0.5 kms-1. The star is consistent with belonging to the thick disk.

Fig. 1 Fig. 2


<< Previous Back to Asics_Vol_006

Keywords : stars: abundances – stars: atmospheres