Giant molecular clouds as regions of particle acceleration

Details Giant molecular clouds as regions of particle acceleration Giant molecular clouds as regions of particle acceleration

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....3..195d&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 3 p 195-198 (SEE N85-34862 23-93)

Physics

Cosmic Rays, Gamma Rays, Interstellar Matter, Molecular Clouds, Cos-B Satellite, Cosmic Dust, Energy Spectra, Particle Emission, Sas-2, Thermal Emission

Scientific paper

One of the most interesting results of investigations carried out on the satellites SAS-II and COS-B is the discovery of unidentified discrete gamma sources. Possibly a considerable part of them may well be giant molecular clouds. Gamma emission from clouds is caused by the processes with participation of cosmic rays. The estimation of the cosmic ray density in clouds has shown that for the energy E approx. = I GeV their density can 10 to 1000 times exceed the one in intercloud space. We have made an attempt to determine the mechanism which could lead to the increase in the cosmic ray density in clouds.

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