Galactic microquasar transients with AGILE
Date Issued
2017
Author(s)
Munar-Adrover, Pere
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Sabatini, S.
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Abstract
The AGILE satellite has been proven to be an excellent tool to study transient gamma-ray sources since it entered in a spinning operational mode in 2009. Thanks to its scanning capabilities it observes the whole sky every few hours. Several new interesting systems were discovered, such as AGL J2241+4454 in 2010, probably associated to the mysterious black-hole high-mass X-ray binary MWC 656. With a state of the art PSF and sensitivity in the 100 MeV – 1 GeV energy range, AGILE studied this system in order to identify new periods of gamma-ray activity that could be associated to the binary, and found a total of 10 flares spanning from 2008 until 2013.
AGILE studied also the Cygnus region, finding evidence of a new recent gamma-ray flare from the microquasar Cygnus X-3, with a flux of ∼ 2×10−8 ph cm−2 s, during a state transition phase in the bright high-soft X-ray state. Also Cygnus X-1 was detected in the past by AGILE, although both systems are very different and show different behaviour.
Coverage
6th International Symposium on High Energy Gamma-Ray Astronomy
All editors
Aharonian, Felix A.; Hofmann, Werner; Rieger, Frank M.
Series
Volume
1792
Issue
1
Start page
040015
Conferenece
6th International Symposium on High Energy Gamma-Ray Astronomy
Conferenece place
Heidelberg, Germany
Conferenece date
11–15 July, 2016
Issn Identifier
0094-243X
Ads BibCode
2017AIPC.1792d0015M
Rights
open.access
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