Accession Number : AD0263084

Title :   SOLAR RADIO PHENOMENA AND THEIR PHYSICAL INTERPRETATION

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Personal Author(s) : DENISSE,J.F.

Report Date : SEP 1961

Pagination or Media Count : 1

Abstract : The various types of waves that can arise in the coronal plasma and the conditions for their escape beyond the corona are discussed. The centimeter bursts of radiation and type IV bursts can be interpreted as synchrotron radiation of relativistic electrons. The bursts f type III and type II are most probably due to the excitation of oscillations of the coronal plasma by high energy particles; but whereas the particles responsible for type III seem to pass through the corona freely, those which radiate type II are probably trapped in a magneto-dynamic wave. Radio storms are probably also due to the excitation of oscillations of the coronal plasma by the particles initially ejected during an eruption, these particles remaining trapped for several days in the permanent magnetic configurations near the sun. (Author)

Descriptors :   *MAGNETOHYDRODYNAMICS, *PARTICLES, *RADIO ASTRONOMY, *SOLAR FLARES, ASTROPHYSICS, EJECTION, INTENSITY, MAGNETIC FIELDS, PROPAGATION, RADIO TRANSMISSION, WAVE PROPAGATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE