Radial abundance gradients as a constraint of the [O/Fe] X [Fe/H] relation in the galactic disk

被引：10
作者：
Maciel, WJ [1 ]
机构：
[1] Univ Sao Paulo, IAG, BR-09500900 Sao Paulo, Brazil
来源：
NEW ASTRONOMY REVIEWS | 2001年 / 45卷 / 08期
基金：
巴西圣保罗研究基金会;
关键词：
D O I：
10.1016/S1387-6473(01)00129-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Radial O/H abundance gradients from HH regions, hot stars and planetary nebulae are combined with [Fe/H] gradients from open cluster stars in order to derive an independent [O / Fe] X [Fe/H] relation for the galactic disk. A comparison of the obtained relation with recent observational data and theoretical models suggests that the [O/Fe] abundances do not reach values higher than 0.4 dex, at least within the metallicity range of the considered samples, [Fe/H]> - 1.5. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：571 / 572
页数：2
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