Jet Birth in Microquasar GRS 1915+105
作者:
Vivek Dhawan,
Michael Muno,
Ron Remillard,
期刊:
AIP Conference Proceedings
(AIP Available online 1904)
卷期:
Volume 714,
issue 1
页码: 150-153
ISSN:0094-243X
年代: 1904
DOI:10.1063/1.1781017
出版商: AIP
数据来源: AIP
摘要:
We present simultaneous X‐ray and radio views of accretion during jet outflow. Previously, we imaged superluminal ejecta after X‐ray/radio flares, and discovered an AU‐scale nuclear jet. Recently, we identified trends in RXTE ASM data to predict the flares, and so captured the evolution of the accretion disk with pointed PCA observations. We also observed in three radio bands with the VLBA on scales of 10–1000 AU, on 3 consecutive days.The radio images show two distinct types of outflow, and the corresponding X‐ray properties are clearly identified. We discuss the evolution of the disk/corona system (viz. X‐ray flux, spectral hardness, frequency of the 1–10 Hz QPO, and time lag between fluctuations in the soft & hard bands) as the relativistic outflow is launched. We believe these X‐ray/radio data represent strong constraints on models for the disk/jet connection. Considerable work remains, however, to decode the physical conditions operating in the disk from their observational signatures. © 2004 American Institute of Physics
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