Cygnus X-3 and other ultra-high-energy gamma-ray sourcesRecently, several binary X-ray sources have been found to be sources of ultrahigh-energy gamma emission. Air-shower observations indicate photon energies above about 1 PeV. Observations from Cyg X-3 are reviewed and compared with data on the sources Her X-1, Vel X-1, and LMC X-4. Current theoretical models for the production of gamma rays and the acceleration of high-energy particles are discussed, and the consequences for the evolution of such systems are examined.
Document ID
19880041279
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Barnard, John J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Astrophysics
Meeting Information
Meeting: The origin and evolution of neutron stars