Stellar Parameters and Chemical Abundances of G Giants
Abstract
We present basic stellar parameters of 99 late-type G giants based on high-resolution spectra obtained by the High Dispersion Spectrograph attached to Subaru Telescope. These stars are targets of a Doppler survey program searching for extra-solar planets among evolved stars, with a metallicity of -0.8 < [Fe/H] < +0.2. We also derived their abundances of 15 chemical elements, including four α-elements (Mg, Si, Ca, Ti), three odd-Z light elements (Al, K, Sc), four iron peak elements (V, Cr, Fe, Ni), and four neutron-capture elements (Y, Ba, La, Eu). Kinematic properties reveal that most of the program stars belong to the thin disk.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- October 2011
- DOI:
- 10.1093/pasj/63.5.1035
- arXiv:
- arXiv:1109.6742
- Bibcode:
- 2011PASJ...63.1035W
- Keywords:
-
- stars: abundances;
- stars: atmospheres;
- stars: fundamental parameters;
- stars: late-type;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 21 pages, 15 figures, PASJ accepted