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arXiv 1911.04085astro-ph.HE
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1998年XTE J1550-564爆发时喷流诱导软滞后的发现

Discovery of Jet-Induced Soft Lags of XTE J1550-564 during Its 1998 Outburst

Arka Chatterjee, Broja G. Dutta, Dusmanta Patra, Sandip K. Chakrabarti, Prantik Nandi

摘要:

X射线的时间滞后在本质上是复杂的。复杂滞后谱的确切原因尚不清楚。然而,硬滞后一般被认为是由于逆康普顿化过程而产生的。但是,软滞后的起源仍然是有害的。最近对“喷流-喷流连接”的研究表明,喷流也对X射线光谱和时间特性做出了贡献,其幅度超过了先前的预测。本文首先给出了XTE J1550-546在1998年爆发期间X射线时间滞后与射电流量之间的精确反相关。我们认为,软滞后可能是由于高喷流活动时沿视线方向吸积盘结构的变化而产生的。

英文摘要:

X-ray time lags are complicated in nature. The exact reasons for complex lag spectra are yet to be known. However, the hard lags, in general, are believed to be originated due to the inverse Comptonization process. But, the origin of soft lags remained mischievous. Recent studies on "Disk-Jet Connections" revealed that the jets are also contributing to the X-ray spectral and timing properties in a magnitude which was more than what was predicted earlier. In this article, we first show an exact anti-correlation between X-ray time lag and radio flux for XTE J1550-546 during its 1998 outburst. We propose that the soft lags might be generated due to the change in the accretion disk structure along the line of sight during higher jet activity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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