Spectra of x-ray transients
Spectra of x-ray transients
复制标题
X 射线瞬变光谱
DOI：
10.1063/1.34536
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
J. Swank
中科院分区：
文献类型：
--
作者：
N. White;J. L. Kaluzienski;J. Swank
从瞬态X射线源也可以看到持久X射线源（如X射线爆发）的性质，这表明它们是包含吸积致密天体的相关双星系统。的X射线瞬态的光谱特性被认为是和持久源的那些相比。三类持久源，即X射线源、核球源和吸积黑洞的谱形态也与X射线瞬变谱一致。瞬态的光谱与持久性源的比较研究表明，三分之二的瞬变的结果从情节吸积到中子星与低磁场（软隆起状瞬变）或高磁场（硬脉冲瞬变）。剩下的瞬变具有异常软（超软）的光谱，类似于处于高状态的黑洞候选者。
The properties of the persistent X-ray sources (such as X-ray bursts) are also seen from the transient X-ray source suggesting that they are related binary systems containing accreting compact objects. The spectral properties of the X-ray transients are considered and compared with those of the persistent sources. The spectral morphologies of the three classes of persistent source i.e. the X-ray pulsars, the bulge sources and the accreting black holes also characterise the spectra of the X-ray transients. A comparative study of the spectra of the transients with those of the persistent sources suggests that two thirds of the transients seen to date result from episodic accretion onto neutron stars with either low magnetic fields (the soft bulge-like transients) or high magnetic fields (the hard pulsing transients). The remaining transients have unusually soft (ultra-soft) spectra similar to those of the black hole candidates in their high state.