Connection between the Accretion Disk and Superluminal Radio Jets and the Role of the Radio Plateau State in GRS?1915+105

J. S. Yadav1

摘要

We investigate the association between the accretion disk during the radio plateau state and the following superluminal relativistic radio jets with peak intensity varying from 200 to 1000 mJy observed over a period of 5 yr and present evidence of a direct accretion disk-jet connection in the microquasar GRS 1915+105. We have analyzed RXTE PCA/HEXTE X-ray data and have found that the accretion rate, accr, as inferred from the X-ray flux, is very high during the radio plateaux. We suggest that the accretion disk during the radio plateaux is always associated with radiation-driven wind, which is manifested in the form of enhanced absorption column density for X-rays and depleted IR emission. We find that the wind density increases with the accretion disk luminosity during the radio plateaux. The wind density is similar to the density of the warm absorber proposed in extragalactic active galactic nuclei (AGNs) and quasars. We suggest a simple model for the origin of superluminal relativistic jets. Finally, we discuss the implications of this work for Galactic microquasars and extragalactic AGNs and quasars.

机译：我们调查了在无线电平稳状态期间吸积盘与随后的超腔相对论射流之间的关联，这些射流在5年内观测到的峰值强度在200至1000 mJy之间变化，并提供了在微类星体中直接吸积盘射流连接的证据GRS 1915 + 105。我们分析了RXTE PCA / HEXTE的X射线数据，发现从X射线通量推断出的积聚率accr在无线电平稳期非常高。我们建议，在无线电平稳期间，吸积盘总是与辐射驱动的风有关，这表现为X射线吸收柱密度增加和IR辐射耗尽的形式。我们发现，在无线电平稳期，风密度随吸积盘光度的增加而增加。风密度类似于银河外活跃银河核（AGNs）和类星体中建议的暖吸收器密度。我们建议一个有关超腔相对论射流起源的简单模型。最后，我们讨论了这项工作对银河微类星体以及银河外AGN和类星体的影响。

Connection between the Accretion Disk and Superluminal Radio Jets and the Role of the Radio Plateau State in GRS?1915+105

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