Oxygen abundances from infrared OH lines

被引：14

作者：

Balachandran, SC ^{[1
]}

Carr, JS

Carney, BW

机构：

[1] Univ Maryland, Dept Astron, College Pk, MD 20740 USA

[2] USN, Res Lab, Washington, DC 20375 USA

[3] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

来源：

NEW ASTRONOMY REVIEWS | 2001年 / 45卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S1387-6473(01)00118-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Oxygen abundances are derived from the vibrational-rotational OH lines in the infrared. The flat trend of [O/Fe] between -2.5 < [Fe/H]< -1.5 from the infrared lines is in sharp disagreement with published results from the electronic transitions of OH in the ultraviolet. However, we note that a careful comparison of IR-OH, [OI] and UV-OH lines in the subgiant BD +23 3130 yields excellent consistency in the oxygen abundance. The agreement between the IR-OH and [OI] trends, and the consistency of these results with Galactic chemical model predictions suggest that the low oxygen values represent the preferred trend. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：529 / 531

页数：3

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