Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985sciam.253...60m&link_type=abstract
Scientific American (ISSN 0036-8733), vol. 253, Nov. 1985, p. 60-69.
Astronomy and Astrophysics
Astrophysics
1
Binary Stars, Cosmic Ray Showers, Energetic Particles, Galactic Cosmic Rays, Particle Acceleration, X Ray Sources, Cygnus Constellation, Gamma Rays, Periodicals, Pulsars, Stellar Models
Scientific paper
For a long time, the origin of cosmic radiation has represented a challenge to the imagination of astrophysicists. This radiation, which was discovered in 1912, is raining down on the earth from all directions at a uniform rate. Now, however, a major source of cosmic radiation has finally been found in an object called Cygnus X-3. This object is the third-brightest X-ray emitter in the constellation Cygnus. It was first observed by X-ray astronomers in the late 1960s. Recently, it was found that Cygnus X-3 is also the source of high-energy gamma rays. On the basis of the observed gamma rays the object was identified as a source of cosmic radiation. Cygnus X-3 is a binary star system located at a distance of at least 37,000 light years at the edge of the Galaxy. Attention is given to models of Cygnus X-3, mechanisms involved in the production of cosmic rays, problems regarding the identification of the sources of cosmic rays, studies of Cygnus X-3, and details regarding cosmic rays.
MacKeown Kevin P.
Weekes Trevor C.
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