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13 papers · 2 filters
Electron heating and acceleration by magnetic reconnection in hot accretion flows
Jian Ding, Feng Yuan, Edison Liang
Both analytical and numerical works show that magnetic reconnection must occur in hot accretion flows. This process will effectively heat and accelerate electrons. In this paper we…
Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009
LAT Collaboration, E. Angelakis, C. Bailyn +39
Following the recent discovery of gamma rays from the radio-loud narrow-line Seyfert 1 galaxy PMN J0948+0022 (z=0.5846), we started a multiwavelength campaign from radio to gamma r…
Reprocessed emission from warped accretion discs induced by the Bardeen-Petterson effect
Sheng-Miao Wu, Lei Chen, Feng Yuan
The broad Balmer emission-line profiles resulting from the reprocessing of UV/X-ray radiation from a warped accretion disc induced by the Bardeen-Petterson effect are studied. We a…
Emergent Spectra From Disks Surrounding Kerr Black Holes: Effect of Photon Trapping and Disk Self-Shadowing
Guang-Xing Li, Ye-Fei Yuan, Xinwu Cao
Based on a new estimation of their thickness, the global properties of relativistic slim accretion disks are investigated in this work. The resulting emergent spectra are calculate…
Disk-Jet Connection in the Radio Galaxy 3C 120
Ritaban Chatterjee, Alan P. Marscher, Svetlana G. Jorstad +33
We present the results of extensive multi-frequency monitoring of the radio galaxy 3C 120 between 2002 and 2007 at X-ray, optical, and radio wave bands, as well as imaging with the…
Monte Carlo simulations of global Compton cooling in inner regions of hot accretion flows
Fu-Guo Xie, Andrzej Niedzwiecki, Andrzej A. Zdziarski +1
Hot accretion flows such as advection-dominated accretion flows are generally optically thin in the radial direction. Thus photons generated at some radii can cool or heat electron…