2010/03/22 by Michael L. McCollough, M. L. McCollough, McCollough, M. L. +5
Engineering · Physics and Astronomy · #Experimental and Theoretical Physics Studies #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1003.4278
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
arxiv created 2010/03/22 · arxiv updated 2010/03/24
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.