Asymmetry of the envelope of supernova 1987A

Details Asymmetry of the envelope of supernova 1987A Asymmetry of the envelope of supernova 1987A

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.338..565p&link_type=abstract

Nature (ISSN 0028-0836), vol. 338, April 13, 1989, p. 565, 566. Research supported by the Smithsonian Institution.

Computer Science

39

Speckle Interferometry, Stellar Envelopes, Supernova 1987A, Expansion, H Alpha Line, Image Reconstruction, Power Spectra

Scientific paper

A detailed analysis of speckle interferometry data from supernova 1987A is presented which shows that the expanding supernova envelope is asymmetric. This asymmetry has been observable since June 1987. The ratio between the minor and major axes of the envelope profile is about 2-3, and the position angle of the major axis is 20 deg + or - 5 deg, consistent with results reported from polarization measurements. The major axis is aligned with the position angle of the companion to the supernova.

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