ANATOMY OF A MERGER - CO IN ARP-299 (IC-694-NGC 3690)

被引：68

作者：

SARGENT, A

SCOVILLE, N

机构：

[1] CALTECH,DIV MATH,PASADENA,CA 91125

[2] CALTECH,DIV ASTRON,PASADENA,CA 91125

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 366卷 / 01期

关键词：

D O I：

10.1086/185896

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

High-resolution (2″.4) CO observations of the interacting system Arp 299 (Mrk 171: IC 694 and NGC 3690) reveal major gas condensations at the nuclei of both galaxies and in the disk overlap region. The 0.9 ×109 M⊙ of H2 at the nucleus of NGC 3690 extends to radii of 310 pc and probably sustains a starburst. A compact source (radius ≤ 250 pc) of mass 3.9 ×109 M⊙ is found at the nucleus of IC 694; this galaxy may harbor an AGN. At least three discrete subcondensations, probably active star-forming knots, are detected in the 1800 × 640 pc overlap region.

引用

页码：L1 / &

共 23 条

[1] POWERFUL EXTRAGALACTIC MASERS [J].