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Modulated High-Energy Gamma-Ray Emission from the Microquasar Cygnus X-3Microquasars are accreting black holes or neutron stars in binary systems with associated relativistic jets. Despite their frequent outburst activity, they have never been unambiguously detected emitting high-energy gamma rays. The Fermi Large Area Telescope (LAT) has detected a variable high-energy source coinciding with the position of the x-ray binary and microquasar Cygnus X-3. Its identification with Cygnus X-3 is secured by the detection of its orbital period in gamma rays, as well as the correlation of the LAT flux with radio emission from the relativistic jets of Cygnus X-3. The gamma-ray emission probably originates from within the binary system, opening new areas in which to study the formation of relativistic jets.
Document ID
20100010230
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Celik, O.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Harding, A. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hays, E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Johnson, T. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pottschmidt, K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
December 11, 2009
Publication Information
Publication: Science
Volume: 326
Issue: 5959
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NNX08AC91G
Distribution Limits
Public
Copyright
Other

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