X-ray spectrum of Cassiopeia A measured with the Einstein SSS
X-ray spectrum of Cassiopeia A measured with the Einstein SSS
复制标题
用爱因斯坦 SSS 测量的仙后座 A 的 X 射线光谱
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
P. Serlemitsos
中科院分区：
文献类型：
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作者：
R. Becker;S. Holt;B. Smith;N. White;E. Boldt;R. Mushotzky;P. Serlemitsos
爱因斯坦天文台的固态光谱仪（SSS）观测到Cas A在0.8 - 4.5 keV之间的X射线谱，能量分辨率为160 eV。线发射与类氦离子的Si，S和Ar的过渡一致，定义明确。数据之间的比较和预期的排放量包含两个不同的热成分的气体需要额外的线发射镁，铝，钙，铁。这些结果进行了讨论的背景下，平衡和非平衡的情况。
The solid state spectrometer (SSS) on the Einstein Observatory observed the X-ray spectrum of Cas A between 0.8 and 4.5 keV with a FWHM energy resolution of 160 eV. Line emission consistent with transitions of helium-like ions of Si, S, and Ar was well defined. Comparison between the data and the emission expected from a gas containing two distinct thermal components requires additional line emission from Mg, Al, Ca, and Fe. These results are discussed in the context of both equilibrium and nonequilibrium situations.