NEAR-INFRARED SPECTROSCOPY OF THE PECULIAR GIANT ELLIPTIC NGC-1275

被引：15

作者：

KAWARA, K ^{[1
]}

TANIGUCHI, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,INST ASTRON,AOBA,SENDAI 980,JAPAN

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 410卷 / 01期

关键词：

GALAXIES; INDIVIDUAL; (NGC-1275); ISM; NUCLEI; INFRARED;

D O I：

10.1086/186869

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report near-infrared (H, K) spectra of NGC 1275, which are characterized by the exceptionally strong [Fe II] 1.64 mum and H-2 1-0 S(1) lines with faint H I Brgamma. This is the first galaxy which is known to show NGC 6240-like near-infrared spectra. The H-2 emission is thermalized at T approximately 1700 K. The UV-pumped fluorescent component contributes less than 12% of the total 1-0 S(1) luminosity. An unresolved core of [Fe II] and H-2 emission and a possibly extended H-2 emission envelope were seen. We examine possible excitation sources of these lines.

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页码：L19 / L22

页数：4

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