The evolution of the flux density of supernova 1987 A at 1.3 MM

Details The evolution of the flux density of supernova 1987 A at 1.3 MM The evolution of the flux density of supernova 1987 A at 1.3 MM

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...236l..17b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 236, no. 2, Sept. 1990, p. L17, L18.

Astronomy and Astrophysics

Astrophysics

7

Radiant Flux Density, Stellar Evolution, Supernova 1987A, Black Body Radiation, Emission Spectra, Magellanic Clouds, Stellar Envelopes, Supernova Remnants

Scientific paper

Supernova 1987 A in the Large Magellanic Cloud was reobserved at 1.3 mm on July 30/31, 1989 (day 888.5). After the detection on September 7-9, 1988 with a flux density of 54 + or - 9 mJy, no measurable flux could be found during the new observation; the flux density was determined to 7.5 + or - 7.2 mJy. It is likely that the envelope has completed the process of dust formation. This dust is clearly very clumpy. The present mm-measurement is consistent with the simple black-body fit to the infrared spectral data from days 903 to 1030, and thus is consistent with the simple picture of dusty clumps partially covering the actual photosphere of the expanding former star.

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