Correlation between BATSE hard X-ray spectral and timing properties of Cygnus X-1

被引：0

作者：

Crary, DJ

Kouveliotou, C

vanParadijs, J

vanderHooft, F

Scott, DM

Paciesas, WS

vanderKlis, M

Finger, MH

Harmon, BA

Lewin, WHG

机构：

[1] UNIV SPACE RES ASSOC, HUNTSVILLE, AL 35806 USA

[2] UNIV ALABAMA, DEPT PHYS, HUNTSVILLE, AL 35899 USA

[3] UNIV AMSTERDAM, ASTRON INST ANTON PANNEKOEK, 1098 SJ AMSTERDAM, NETHERLANDS

[4] NATL INST NUCL & HIGH ENERGY PHYS, CTR HIGH ENERGY ASTROPHYS, 1098 SJ AMSTERDAM, NETHERLANDS

[5] MIT, CAMBRIDGE, MA 02139 USA

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 462卷 / 02期

关键词：

stars; individual (Cygnus X-1); X-rays;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have analyzed approximately 1100 days of Cygnus X-1 hard X-ray data obtained with BATSE to study its rapid variability. We find for the first time correlations between the slope of the spectrum and the hard X-ray intensity, and between the spectral slope and the amplitude of the rapid variations of the hard X-ray flux. We compare our results with expectations from current theories of accretion onto black holes.

引用

页码：L71 / L74

页数：4

共 28 条

[1] HARD X-RAY-EMISSION FROM WEAKLY MAGNETIZED NEUTRON-STARS [J].