Radio emission from an ultraluminous x-ray source

被引：142

作者：

Kaaret, P

Corbel, S

Prestwich, AH

Zezas, A

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Ctr Etud Saclay, CEA Saclay Federat APC, F-91191 Gif Sur Yvette, France

[3] Univ Paris 07, F-91191 Gif Sur Yvette, France

来源：

SCIENCE | 2003年 / 299卷 / 5605期

关键词：

D O I：

10.1126/science.1079610

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The physical nature of ultraluminous x-ray sources is uncertain. Stellar-mass black holes with beamed radiation and intermediate black holes with isotropic radiation are two plausible explanations. We discovered radio emission from an ultraluminous x-ray source in the dwarf irregular galaxy NGC 5408. The x-ray, radio, and optical fluxes as well as the x-ray spectral shape are consistent with beamed relativistic jet emission from an accreting stellar black hole. If confirmed, this would suggest that the ultraluminous x-ray sources may be stellar-mass rather than intermediate-mass black holes. However, interpretation of the source as a jet-producing intermediate-mass black hole cannot be ruled out at this time.

引用

页码：365 / 367

页数：3

共 42 条

[1] The X-ray globular cluster population in NGC 1399 [J].