XMM-Newton observation of the black hole microquasar GRS 1758-258
作者:
A. Goldwurm,
D. Israe¨l,
P. Goldoni,
P. Ferrando,
A. Decourchelle,
F. I. Mirabel,
R. S. Warwick,
期刊:
AIP Conference Proceedings
(AIP Available online 1901)
卷期:
Volume 587,
issue 1
页码: 61-65
ISSN:0094-243X
年代: 1901
DOI:10.1063/1.1419372
出版商: AIP
数据来源: AIP
摘要:
The XMM-Newton X-ray observatory pointed the galactic black hole candidate and microquasar GRS 1758-258 in September 2000 for about 10 ks during a program devoted to the scan of the Galactic Center regions. Preliminary results from EPIC MOS camera data are presented here. The data indicate that the source underwent a state transition from its standard low-hard state to an intermediate state. For the first time in this source the ultra-soft component of the accretion disk, which black hole binaries display in intermediate or high-soft states, was clearly detected and measured thanks to the high spectral capabilities of XMM-Newton. ©2001 American Institute of Physics.
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