标题： RXTE 对天鹅座 X-1 的观测：宽带谱和高分辨率定时 显示英文标题

标题： RXTE Observations of Cygnus X-1: Broad-Band Spectra and High-Resolution Timing

摘要： 我们展示了对黑洞候选体Cyg X-1的一次20千秒RXTE观测结果。我们将自洽吸积盘晕模型应用于这些硬态数据，并表明球状晕的康普顿化在外来冷盘软光子照射下能够成功拟合谱线。我们还给出了来自四个能量带的光变曲线的功率谱、相干函数和时间延迟。通过用随机线性状态空间模型拟合高分辨率光变曲线，我们表明Cyg X-1的快速硬态变化可以用单一时间尺度来解释。 显示英文摘要

摘要： We present results from a 20 ksec RXTE observation of the black hole candidate Cyg X-1. We apply self-consistent accretion disk corona models to these hard state data and show that Comptonization in a spherical corona irradiated by soft photons from an exterior cold disk is able to successfully model the spectrum. We also present the power spectrum, the coherence function, and the time lags for lightcurves from four energy bands. By modeling the high-resolution lightcurves with stochastic linear state space models, we show that the rapid hard state variability of Cyg X-1 can be explained with a single timescale.