Supernova 1987 A at 1.3 MM

Details Supernova 1987 A at 1.3 MM Supernova 1987 A at 1.3 MM

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...227l..21b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 227, no. 1, Jan. 1990, p. L21-L24.

Astronomy and Astrophysics

Astronomy

5

Magellanic Clouds, Millimeter Waves, Radio Astronomy, Supernova 1987A, Abundance, Pulsars, Radiative Transfer, Stellar Envelopes, Supernova Remnants

Scientific paper

The Supernova 1987 A in the Large Magellanic Cloud was detected at 1.3 mm with a flux density of 54 + or - 9 mJy during September 7-9, 1988 with the 15m mm-telescope SEST at La Silla (ESO). The radiation is interpreted as due to free-free emission from the weakly ionized outer part of the former star now expanding homologously. The temperature of the gas emitting the free-free emission is so low as to suggest that dust has formed in the former stars' envelope. In order for the optical photosphere to be observable at 25mas diameter, this dust has to be distributed in an extremely clumpy manner.

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