Stellar Parameters and Abundance Analysis of 58 Late G Giants

Details Stellar Parameters and Abundance Analysis of 58 Late G Giants Stellar Parameters and Abundance Analysis of 58 Late G Giants

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pasj...62.1071l&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.62, No.4, pp.1071--1084

Astronomy and Astrophysics

Astronomy

4

Stars: Abundances, Stars: Atmospheres, Stars: Fundamental Parameters, Stars: Late-Type

Scientific paper

We present stellar atmospheric parameters, and kinematic parameters for a part of Xinglong Planet Search Program sample - 58 late G-type giants, obtained at Okayama Astrophysical Observatory. Additionally, we determined the chemical abundances, especially for the elements C, O, and Na. The metallicity distribution of our sample ranges covered from -0.6 to 0.2 in [Fe/H], which supports the previous results, suggesting a lack of super metal-rich giants with [Fe/H] > +0.2. The abundance of C is depleted by 0.13 dex, and [Na/Fe] shows an overabundance of 0.1 dex compared to a dwarf with the same spectral type, while the O abundance was not altered after the first dredge up. These results are consistent with theoretical predictions of stellar evolution. The behaviors of Si, Ca, Ti, Cr, Ni, Mn, ScII, YII, and CeII in our giants follow the same trends as in dwarfs.

Affiliated with

Also associated with

No associations

Rating

Stellar Parameters and Abundance Analysis of 58 Late G Giants does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stellar Parameters and Abundance Analysis of 58 Late G Giants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar Parameters and Abundance Analysis of 58 Late G Giants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1124929