The Light Echo from Supernova 1987A

Details The Light Echo from Supernova 1987A The Light Echo from Supernova 1987A

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988atsir1527....7t&link_type=abstract

Astronomicheskii Tsirkulyar NO.1527/MAR-A, P. 7, 1988

Astronomy and Astrophysics

Astronomy

Scientific paper

The double ring light echo from SN 1987A can be produced either by two clouds with radii 10 - 40 pc and 10 - 100 pc or by sheets of single (or double) supershells with the absorption AV ≡ 0.01 - 0.03 mag. Brightness variations are probably due to absorption of SN light by circumstellar clouds responsible for the well known "bright spot" seen southward SN 1987A.

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