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

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

2012-03-07

arxiv.org/abs/1203.1461v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

To appear in Astronomical Society of India Conference Series (ASICS), P. Prugniel and H. P. Singh (Editors)

Scientific paper

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, log g = 3.9+-0.2, and xi = 1.1+-0.5 km/s. The star is consistent with belonging to the thick disk.

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