A spectroscopic study of some suspected chemically peculiar stars

被引：0
作者：
Leone, F
Catanzaro, G
机构：
[1] Osservatorio Astrofis Catania, I-95125 Catania, Italy
[2] Univ Messina, Dipartimento Fis Mat & Tecnol Fis Avanzate, I-98166 Messina, Italy
[3] CNR, Grp Nazl Astron, UdR Catania, I-95125 Catania, Italy
来源：
ASTRONOMY & ASTROPHYSICS | 1998年 / 331卷 / 02期
关键词：
stars : chemically peculiar; abundances; individual; HD; 20629; 35575; 38602;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Time-resolved spectra in the 410 - 700 nm range have been obtained to investigate 10 stars which are classified as suspected chemically peculiar stars in The General Catalogue of Ap and Am stars by Renson et al. (1991) or in the latest literature. Among the studied stars, HD 20629 presents metal abundances which are significantly different from main sequence star values and it should be classified as Silicon star. From the HeI 587.6 nm line, we conclude that HD 35575 is a helium weak star. Because of the found radial velocity variability and the derived abundances, the periodic photometric variable HD 38602 could be an ellipsoidal variable.
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收藏
页码：627 / 632
页数：6
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