A MULTILINE, MULTIRESOLUTION VLA STUDY OF THE ULTRACOMPACT H-II REGION-G29.96-0.02

被引：23

作者：

AFFLERBACH, A ^{[1
]}

CHURCHWELL, E ^{[1
]}

HOFNER, P ^{[1
]}

KURTZ, S ^{[1
]}

机构：

[1] NATL AUTONOMOUS UNIV MEXICO,INST ASTRON,MEXICO CITY 04510,DF,MEXICO

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 437卷 / 02期

关键词：

H II REGIONS; ISM; INDIVIDUAL; (G29.96-0.02); LINE; PROFILES; RADIO LINES; SHOCK WAVES;

D O I：

10.1086/175032

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A non-LTE analysis is presented for high spatial resolution observations of H110 alpha, H66 alpha, and H42 alpha toward the cometary ultracompact (UC) H II region G29.96-0.02. We find a mean T-e similar to 6500 K and local n(e) similar to x 10(4) cm(-3) in the leading are and n, similar to 2 x 10(4) cm(-3) in the tail. Impact broadening is significant in H110 alpha, implied by a reduction in the peak line amplitude by as much as 50% in the leading are. The morphology of the line emission and the line profiles are consistent with a bow shock.

引用

页码：697 / 704

页数：8

共 28 条

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