Title of article :
A high-resolution spectral analysis of mildly metal-poor stars II. Chemical abundances
Author/Authors :
Qiu، نويسنده , , Hongmei and Zhao، نويسنده , , Gang and Zhong، نويسنده , , Jia-yong، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
7
From page :
66
To page :
72
Abstract :
On the basis of a previous paper, we have determined the atmospheric parameters and the abundance of nine chemical elements for a sample of stars. we discuss the changes of the abundances with [FeH]. The mean [NaFe]∼- 0.01 dex is close to the solar abundance. Of the α elements Si and Ca possess almost the same abundance model, [TiFe] has a rather large scatter while all three tend to increase with decreasing [FeH]. The iron-peak elements, V, Cr and Ni have comparatively large scatters in their abundance. For all the sample stars, [CrFe] is over-abundant, and [MnFe] is under-abundant. The latter also increases with increasing metal abundances.
Keywords :
HD59984… , abundance—star , STAR , atmosphere—star , individuals , HD22484 , HD51530
Journal title :
Chinese Astronomy and Astrophysics
Serial Year :
2003
Journal title :
Chinese Astronomy and Astrophysics
Record number :
2263285
Link To Document :
بازگشت