HIDDEN SUPERNOVA-REMNANTS IN THE LARGE MAGELLANIC CLOUD H-II COMPLEX N44

被引：62

作者：

CHU, YH

MACLOW, MM

GARCIASEGURA, G

WAKKER, B

KENNICUTT, RC

机构：

[1] UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637

[2] UNIV ARIZONA,STEWARD OBSERV,TUCSON,AZ 85721

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 414卷 / 01期

关键词：

H-II REGIONS; MAGELLANIC CLOUDS; SUPERNOVA REMNANTS; X-RAYS; INTERSTELLAR;

D O I：

10.1086/173069

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have obtained ROSAT PSPC observations of N44, one of the largest H II complexes in the Large Magellanic Cloud. The X-ray emission mostly falls within the ionized shell structures in N44. We find that one faint shell is a classical supernova remnant overlooked by previous surveys. If we model the two largest shells as pressure-driven superbubbles, the predicted X-ray luminosity falls far below the observed value. Instead, we show that off-center supernova remnants hitting superbubble shells can explain the excess X-ray emission.

引用

页码：213 / &

共 39 条

[31]

ROHLFS K, 1984, ASTRON ASTROPHYS, V137, P343

[32] X-RAY-EMISSION FROM THE CARINA NEBULA AND THE ASSOCIATED EARLY STARS [J].