A plasma radiation model for the prompt radio emission of supernova 1987 A

Details A plasma radiation model for the prompt radio emission of supernova 1987 A A plasma radiation model for the prompt radio emission of supernova 1987 A

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...228l..13b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 228, no. 2, Feb. 1990, p. L13-L16.

Astronomy and Astrophysics

Astrophysics

4

Plasma Interactions, Plasma Radiation, Radio Bursts, Stellar Models, Supernova 1987A, Electron Density Profiles, Electron Energy, Extragalactic Radio Sources, Radio Emission, Synchrotron Radiation

Scientific paper

It is proposed that the prompt radio emission of supernova 1987a a few days after the explosion is the result of a plasma interaction between the ejecta and the presupernova circumstellar matter. The emission frequency then is determined by the electron density in the front of the ejecta, and the radio flux density mainly depends on the velocity of the ejecta and the circumstellar electron density. Free-free absorptions in the interaction region and by the circumstellar medium limit the emission on the high, respectively low, frequency side and inhibit observable emission in the first two days.

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