Modulated High-Energy Gamma-Ray Emission from the Microquasar Cygnus X-3

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https://www.science.org/doi/10.1126/science.1182174

Permanent Link

https://doi.org/10.1126/science.1182174
 http://hdl.handle.net/11603/29929

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UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection
UMBC Physics Department

Author/Creator

Author/Creator ORCID

https://orcid.org/0000-0002-3396-651X
 https://orcid.org/0000-0002-4656-6881

Date

2009-11-26

Type of Work

journal articles
Text

Department

Program

Citation of Original Publication

The Fermi LAT Collaboration et al., Modulated High-Energy Gamma-Ray Emission from the Microquasar Cygnus X-3.Science326,1512-1516(2009).DOI:10.1126/science.1182174

Rights

This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0

Subjects

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.