Temporal and spectral variation of Cyg X-1
Temporal and spectral variation of Cyg X-1
复制标题
Cyg X-1 的时间和光谱变化
作者：
Y. Ogawara;K. Doi;M. Matsuoka;S. Miyamoto;M. Oda
在银河系的X射线源中，天鹅座X-1因其显著的可变性而与众不同。其X射线强度曲线表现出明显的大振幅非周期性变化1 -3。我们很容易假设天鹅座X-1的这种特性与黑洞周围形成的吸积盘的物理性质有关，该黑洞被认为伴随着与天鹅座X-1光学上相同的超巨星HDE 226868。我们在这里报告的某些功能的亚秒级的变化，从最近的火箭观测得出的结论。
AMONG galactic X-ray sources, Cyg X-1 is distinctive because of its marked variability. Its X-ray intensity curve exhibits apparently aperiodic variation of large amplitudes1–3. It is tempting to suppose that this peculiarity of Cyg X-1 is related to the physical properties of the accretion disk formed around the black hole presumed to accompany the supergiant HDE226868 optically identified with Cyg X-1. We report here certain features of the subsecond variability concluded from a recent rocket observation.