Modelling a simultaneous radio/X-ray flare from Cyg X-1

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MQW7_090.pdf (108.67 KB)

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https://pos.sissa.it/062/090/

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https://doi.org/10.22323/1.062.0090
 http://hdl.handle.net/11603/29989

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UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection
UMBC Physics Department

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Author/Creator ORCID

https://orcid.org/0000-0002-4656-6881

Date

2009-04-15

Type of Work

conference papers and proceedings
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Citation of Original Publication

Leventis, Konstantinos, Sera Markoff, Joern Wilms, Michael A. Nowak, Dipankar Maitra, Katja Pottschmidt, Guy G. Pooley, Ingo Kreykenbohm, and Richard E. Rothschild. “Modelling a Simultaneous Radio/X-Ray Flare from Cyg X-1.” In Proceedings of VII Microquasar Workshop: Microquasars and Beyond — PoS(MQW7), 62:090. SISSA Medialab, 2009. https://doi.org/10.22323/1.062.0090.

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Abstract

The 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.