Intracavity laser absorption spectra of nickel hydride

被引：9

作者：

Shaji, Sadasivan ^{[1
]}

Nunn, Joshua ^{[1
]}

O'Brien, James J. ^{[1
]}

O'Brien, Leah C. ^{[2
]}

机构：

[1] Univ Missouri, Dept Chem & Biochem, St Louis, MO 63121 USA

[2] So Illinois Univ, Dept Chem, Edwardsville, IL 62026 USA

来源：

ASTROPHYSICAL JOURNAL | 2008年 / 672卷 / 01期

关键词：

molecular data; stars : chemically peculiar;

D O I：

10.1086/523696

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The visible electronic spectrum of the nickel hydride B (2)Delta(5/2)-X (2)Delta(5/2)(1,0) and A (2)Delta(5/2)-X (2)Delta(5/2)(1,0) transitions have been recorded with rotational resolution by intracavity laser absorption spectroscopy. The gas-phase NiH molecules were produced in an electric discharge using a nickel hollow cathode in a pure hydrogen atmosphere at 2-3 torr total pressure. Peak positions for NiH isotopologues are presented for both the transitions. (NiH)-Ni-58 and (NiH)-Ni-60 have been observed in sunspots and attempts to observe NiH in stellar spectra are underway.

引用

页码：722 / 725

页数：4

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