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Modelling a Simultaneous Radio/X-Ray Flare from Cyg X-1The long-term monitoring campaign of Cyg X-1 has provided the detection of the first simultaneous radio/X-ray flare seen from that source. We investigate the physical characteristics of the event in terms of emission from a homogeneous, expanding blob of pair-plasma, superimposed on a baseline flux in both bands. We find that while the radio flare can be reconstructed under various configurations of a cooling blob, continuous (re)acceleration of particles inside the jet is necessary to sustain X-ray emission at the levels implied by the data, for the observed duration. We present major results of the modelling and discuss implications for the role of microquasar jets.
Document ID
20090005036
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Leventis, Konstantinos
(Amsterdam Univ. Netherlands)
Markoff, Sera
(Amsterdam Univ. Netherlands)
Wilsm, Joern
(Remeis Sternwarte Bamberg, Germany)
Nowak, Michael A.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Maitra, Dipankar
(Amsterdam Univ. Netherlands)
Pottschmidt, Katja
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pooley, Guy G.
(Mullard Radio Astronomy Observatory Cambridge, United Kingdom)
Kreykenbohm, Ingo
(Remeis Sternwarte Bamberg, Germany)
Rotschild, Richard E.
(California Univ. San Diego, CA, United States)
Date Acquired
August 24, 2013
Publication Date
September 1, 2008
Subject Category
Astrophysics
Meeting Information
Meeting: 7th Microquasar Workshop: Microquasars and Beyond
Location: Izmir
Country: Turkey
Start Date: September 1, 2008
End Date: September 5, 2008
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Public Use Permitted.
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