THE NOISY PULSAR IN HER X-1

被引：0
作者：
BELLONI, T
HASINGER, G
KAHABKA, P
机构：
来源：
ASTRONOMY & ASTROPHYSICS | 1991年 / 245卷 / 02期
关键词：
STARS; NEUTRON; X-RAYS; BINARIES;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The results of a comparative analysis of coherent and non-coherent variations in the X-ray emission of Hercules X-1 are presented, based on EXOSAT archive data. In the broad band power spectrum of the source a strong noise component. variable with the 35-days cycle, is present. These changes, and the relation between the noise rms and the pulsed rms, can be interpreted as the effect of the presence of a scattering medium with variable optical depth. The results are compared with current models for the production of the noise and for the origin of the long term cycle.
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页码：L29 / L31
页数：3
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