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.

Modulated High-Energy Gamma-Ray Emission from the Microquasar Cygnus X-3 / A. A., A., M., A., M., A., M., A., L., B., J., B., G., B., D., B., B. M., B., K., B., R., B., B., B., R. D., B., E. D., B., E., B., A. W., B., A., B., M., B., P., B., T. H., B., et al.. - In: SCIENCE. - ISSN 0036-8075. - STAMPA. - 326:(2009), pp. 1512-1516. [10.1126/science.1182174]

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

LONGO, FRANCESCO;
2009-01-01

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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2338226
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