The MIT/OSO 7 catalog of X-ray sources - Intensities, spectra, and long-term variability
The MIT/OSO 7 catalog of X-ray sources - Intensities, spectra, and long-term variability
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MIT/OSO 7 X 射线源目录 - 强度、光谱和长期变化
DOI：
10.1086/190587
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发表时间：
1979
影响因子：
8.7
通讯作者：
P. Winkler
中科院分区：
文献类型：
--
作者：
T. Markert;F. Laird;G. Clark;D. Hearn;G. Sprott;F. Li;H. Bradt;W. Lewin;H. Schnopper;P. Winkler
本文总结了1971年10月至1973年5月间，由OSO 7上的MIT 1—40 KeV x射线探测器对宇宙x射线天空的观测。具体来说，我们计算了所有第三个Uhuru或OSO 7编目源（185个源）在3- 10 KeV范围内的平均强度或上限。对于那些在3—10 KeV波段（138个源）中发现具有统计学意义（bbb20）强度的源，在1—15 KeV， 1—6 KeV和15—40 KeV波段进行了进一步的强度测定。我们提供了图表和其他简单的技术来帮助用户将观察到的计数率转换为方便的单位，并确定光谱参数。最后，我们绘制了86个较亮光源的长期光曲线（以时间为函数计算一个或多个能带的光率）。
This paper is a summary of the observations of the cosmic X-ray sky performed by the MIT 1--40 KeV X-ray detectors on the OSO 7 between 1971 October and 1973 May. Specifically, we have computed the mean intensities or upper limits of all third Uhuru or OSO 7 cataloged sources (185 sources) in the 3--10 KeV range. For those sources for which a statistically significant (>20) intensity was found in the 3--10 KeV band (138 sources), further intensity determinations were made in the 1--15 KeV, 1--6 KeV, and 15--40 KeV energy bands. We have provided graphs and other simple techniques to aid the user in converting the observed counting rates to convenient units and in determining spectral parameters. Finally, we have plotted long-term light curves (counting rates in one or more energy bands as a function of time) for 86 of the brighter sources.