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The X-Ray/Radio/Flaring Properties of Cygnus X-3

The X-Ray/Radio/Flaring Properties of Cygnus X-3

Authors :
McCollough, M. L.
Koljonen, K. I. I.
Hannikainen, D. C.
Publication Year :
2010

Abstract

Cygnus X-3 is a unique microquasar. Its X-ray emission shows a very strong 4.8-hour orbital modulation. But its mass-donating companion is a Wolf-Rayet star. Also unlike most other X-ray binaries Cygnus X-3 is relatively bright in the radio virtually all of the time (the exceptions being the quenched states). Cygnus X-3 also undergoes giant radio outbursts (up to 20 Jy). In this presentation we discuss and review the flaring behavior of Cygnus X-3 and its various radio/X-ray states. We present a revised set of radio/X-ray states based on Cygnus X-3's hardness-intensity diagram (HID). We also examine the connection of a certain type of activity to the reported AGILE/Fermi gamma-ray detections of Cygnus X-3.<br />Comment: 8 pages, 7 figures. Invited review at the "7th Agile Meeting and The Bright Gamma-Ray Sky", held in Frascati, Italy, 29 September to 1 October 2009

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1003.4278
Document Type :
Working Paper