Long-term gamma-ray spectral variability of Cygnus X-1
Long-term gamma-ray spectral variability of Cygnus X-1
复制标题
Cygnus X-1 的长期伽马射线光谱变化
DOI：
10.1086/185017
复制
发表时间：
1987
期刊：
影响因子：
--
通讯作者：
A. Jacobson
中科院分区：
文献类型：
--
作者：
J. Ling;W. Mahoney;W. Wheaton;A. Jacobson
本文将HEAO 3观测天鹅座X-1在两个90天周期（1979年秋季和1980年春季）的0.05-10 MeV γ射线辐射的数据汇编成表格和图表，并进行统计分析，以确定时间和光谱的变化。据发现，在100 keV的排放量的稳定增加是伴随着减少（和最终消失）的MeV排放。理论上可能是负责这些现象的机制进行了讨论。28参考文献。
Data from HEAO 3 observations of 0.05-10-MeV gamma-ray emission from Cyg X-1 during two 90-d periods (in fall 1979 and spring 1980) are compiled in tables and graphs and analyzed statistically to determine the temporal and spectral variability. It is found that a steady increase in 100-keV emission is accompanied by a decrease (and eventual disappearance) of MeV emission. The mechanisms which could theoretically be responsible for these phenomena are discussed. 28 references.