LITHIUM ABUNDANCES FOR 81 F-DWARFS

被引：68

作者：

LAMBERT, DL ^{[1
]}

HEATH, JE ^{[1
]}

EDVARDSSON, B ^{[1
]}

机构：

[1] UNIV UPPSALA,ASTRON OBSERV,S-75105 UPPSALA,SWEDEN

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1991年 / 253卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1093/mnras/253.4.610

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Lithium abundances are presented for 81 main-sequence stars with effective temperatures of about 5800-6700 K. A novel result of the survey is that, in old disc ([Fe/H] less-than-or-similar-to -0.3) dwarfs too low in mass to belong to the Li-gap, Li is generally not depleted beyond the moderate level attributed to the convection zone of the premain- and main-sequence phase but, when depletion occurs, it is very effective. Li-poor old disc stars at luminosities too low to be identified with the Li-gap exist, but are rare.

引用

页码：610 / 618

页数：9

共 31 条

[1] ABUNDANCES OF THE ELEMENTS - METEORITIC AND SOLAR [J].