DETECTION OF CO IN THE E0 GALAXY NGC 3928

被引：18

作者：

GORDON, MA ^{[1
]}

机构：

[1] MAX PLANCK INST RADIOASTRON,W-5300 BONN 1,GERMANY

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 350卷 / 02期

关键词：

Galaxies: interstellar matter; Interstellar: molecules;

D O I：

10.1086/185660

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the detection of CO(2 → 1) emission from five positions within the blue elliptical galaxy NGC 3928 (Mrk 190). The spectra indicate discrete components with a velocity gradient of about 190 km s-1 over a projected distance of about 2 kpc and a total CO luminosity of 8 ×105 Jy km s-1 Mpc2. The CO emission implies a mass of ≈5.1 × 108 M⊙ of H2. Compared to a H1 mass of 2.8 ×107 M⊙, the mass ratio of H2/H I is at least 18 in the inner region of the galaxy, a situation similar to what is seen in the inner regions of spiral galaxies.

引用

页码：L29 / L31

页数：3

共 17 条

[1] SPECTROSCOPY AND PHOTOMETRY OF ELLIPTIC GALAXIES .2. THE SPECTROSCOPIC PARAMETERS [J].