X-RAY-EMISSION FROM GIANT H-II-REGIONS IN M101

被引：39

作者：

WILLIAMS, RM

CHU, YH

机构：

[1] Astronomy Department, Univ. Illinois at Urbana-Champaign, Urbana

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 439卷 / 01期

关键词：

GALAXIES; INDIVIDUAL; (M101); H II REGIONS; HYDRODYNAMICS; X-RAYS;

D O I：

10.1086/175158

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have examined the archival ROSAT Position Sensitive Proportional Counter and the High-Resolution Imager images of the galaxy M101 to study the X-ray properties of its giant H II regions. All five giant H II regions, NGC 5447, NGC 5455, NGC 5461, NGC 5462, and NGC 5471, show X-ray emission. By observing their basic properties, such as size, hardness ratio, and estimated luminosity, and by comparisons with better known regions in the LMC, we are able to suggest some possible mechanisms for the sources of the X-ray emission.

引用

页码：132 / 144

页数：13

共 31 条

[1]

ALLEN RJ, 1973, ASTRON ASTROPHYS, V29, P447

[2]

ALLEN RJ, 1976, ASTRON ASTROPHYS, V48, P253

[3] THE LARGEST H-II-REGIONS IN M101 [J].