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Modulated high-energy gamma-ray emission from the microquasar Cygnus X-3.

Authors
  • And 157 more
Type
Published Article
Journal
Science
1095-9203
Publisher
American Association for the Advancement of Science (AAAS)
Publication Date
Volume
326
Issue
5959
Pages
1512–1516
Identifiers
DOI: 10.1126/science.1182174
PMID: 19965378
Source
Medline
License
Unknown

Abstract

Microquasars 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.

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