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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/50795
The 2010 May Flaring Episode of Cygnus X-3 in Radio, X-rays, and γ-rays
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In 2009, Cygnus X-3 (Cyg X-3) became the first microquasar to be detected in the GeV γ-ray regime, via the satellites Fermi and AGILE. The addition of this new band to the observational toolbox holds promise for building a more detailed understanding of the relativistic jets of this and other systems. We present a rich data set of radio, hard and soft X-ray, and γ-ray observations of Cyg X-3 made during a flaring episode in 2010 May. We detect a ~3 day softening and recovery of the X-ray emission, followed almost immediately by a ~1 Jy radio flare at 15 GHz, followed by a 4.3σ γ-ray flare (E > 100 MeV) ~1.5 days later. The radio sampling is sparse, but we use archival data to argue that it is unlikely the γ-ray flare was followed by any significant unobserved radio flares. In this case, the sequencing of the observed events is difficult to explain in a model in which the γ-ray emission is due to inverse Compton scattering of the companion star's radiation field. Our observations suggest that other mechanisms may also be responsible for γ-ray emission from Cyg X-3.
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WILLIAMS, Peter k. g., TOMSICK, John a., BODAGHEE, Arash, BOWER, Geoffrey c., POOLEY, G., POTTSCHMIDT, Katja, RODRIGUEZ, Jérôme, WILMS, Jörn, MIGLIARI, Simone, TRUSHKIN, Sergei a.. The 2010 May Flaring Episode of Cygnus X-3 in Radio, X-rays, and γ-rays. _Astrophysical Journal_. 2011. Vol. 733, núm. 2, pàgs. 1-6. [consulta: 15 de gener de 2026]. ISSN: 0004-637X. [Disponible a: https://hdl.handle.net/2445/50795]