Spectroscopic analysis of 348 red giants (Zielinski+, 2012)

Bibcode
2012yCat..35479091Z
Zielinski, P.; Niedzielski, A.; Wolszczan, A.; Adamow, M.; Nowak, G.
Bibliographical reference

VizieR On-line Data Catalog: J/A+A/547/A91. Originally published in: 2012A&A...547A..91Z

Advertised on:
10
2012
Number of authors
5
IAC number of authors
0
Citations
0
Refereed citations
0
Description
The atmospheric parameters were derived using a strictly spectroscopic method based on the LTE analysis of equivalent widths of FeI and FeII lines. With existing photometric data and the Hipparcos parallaxes, we estimated stellar masses and ages via evolutionary tracks fitting. The stellar radii were calculated from either estimated masses and the spectroscopic logg or from the spectroscopic Teff and estimated luminosities. The absolute radial velocities were obtained by cross-correlating spectra with a numerical template. Our high-quality, high-resolution optical spectra have been collected since 2004 with the Hobby-Eberly Telescope (HET), located in the McDonald Observatory. The telescope was equipped with the High Resolution Spectrograph (HRS; R~60000 resolution). (2 data files).
Type
Non-refereed
Spectroscopy

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