Origin and evolution of the radio emission from immediate postoutburst supernovae

Details Origin and evolution of the radio emission from immediate postoutburst supernovae Origin and evolution of the radio emission from immediate postoutburst supernovae

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220..474m&link_type=abstract

Astrophysical Journal, Part 1, vol. 220, Mar. 1, 1978, p. 474-483.

Astronomy and Astrophysics

Astronomy

22

Milky Way Galaxy, Nebulae, Radio Sources (Astronomy), Supernova Remnants, Thermal Plasmas, Astronomical Models, Bremsstrahlung, Compton Effect, Pulsars, Radio Emission, Relativistic Particles

Scientific paper

Several models for the radio emission from immediate postoutburst supernovae are examined under the assumption that the expanding remnant consists of a homogeneously mixed distribution of relativistic particles, magnetic field, and thermal plasma. The evolutionary models are: (1) an adiabatic expansion model; (2) a model incorporating the existence of a central pulsar; and (3) variations on the first two models in which relativistic electrons are accelerated either instantaneously or over an extended period of time and in which ionization, bremsstrahlung, synchrotron, Compton, and expansion losses are explicitly included. The character of the radio emission expected from these models is quite dissimilar. Whereas in adiabatic expansion models the emission is expected to increase slowly and become most intense at high frequencies, in models involving a central pulsar the emission should increase rapidly with a maximum flux density that is the same at all frequencies. The theoretical evolution of the radio emission for each model is compared with observations of SN 1970g.

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