Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21536001c&link_type=abstract
American Astronomical Society, AAS Meeting #215, #360.01; Bulletin of the American Astronomical Society, Vol. 42, p.547
Astronomy and Astrophysics
Astronomy
Scientific paper
Several models predict gamma-ray emission from binary systems containing neutron stars or black holes. However, to date there are very few binary systems (apart from those containing rotation-powered pulsars) from which gamma-ray emission has been definitely detected. The Fermi LAT provides an ideal platform for the study of gamma-ray binaries - it combines high sensitivity together with a sky-survey mode that facilitates investigations of source variability on a wide range of timescales. We present here the results of LAT observations of the "classical" gamma-ray binaries LS I +61° 303 and LS 5039 which reveal modulations on their orbital periods and show the presence of high-energy cutoffs in their spectra. We also report the results of searches for gamma-ray emission from candidate sources including the microquasar/high-mass X-ray binary Cygnus X-3.
Corbet Robin H. D.
Fermi LAT Collaboration
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