NEW EXCITATION RATES AND LINE RATIOS FOR [FE-II]

被引：57

作者：

PRADHAN, AK

ZHANG, HL

机构：

[1] Department of Astronomy, Ohio State University, Columbus

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 409卷 / 02期

关键词：

ATOMIC DATA; INFRARED; GENERAL;

D O I：

10.1086/186864

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Improved rate coefficients and line ratios are reported for the diagnostics of IR spectra of Fe II based on extensive new calculations of collision strengths using a 38 state close-coupling expansion. Results presented pertain to all 16 lowest levels and 120 transitions. The present rates are generally higher from previous works by significant factors, predicting brighter IR line flux for a given iron abundance, and are likely to affect the derived densities, temperatures, and abundances in a wide range of IR sources.

引用

页码：L77 / L79

页数：3