The effects of limb variation on the diameter measurements of SN 1987 A

Details The effects of limb variation on the diameter measurements of SN 1987 A The effects of limb variation on the diameter measurements of SN 1987 A

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...253..210k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 253, no. 1, Jan. 1992, p. 210-212. Research supported by Smithsonian Instituti

Astronomy and Astrophysics

Astrophysics

3

Diameters, Dimensional Measurement, Speckle Interferometry, Stellar Envelopes, Stellar Luminosity, Supernova 1987A, Brightness Distribution, Luminous Intensity, Stellar Models

Scientific paper

The effects of model brightness distributions on the estimated diameter from measurements of the supernova SN 1987 A envelope are studied. The measurements were made using speckle interferometry techniques 265 days after the explosion. The results of this study show strong dependence of the diameter estimates for different model profiles. The choice of the intensity distribution profile has an essential role in accurate determination of the supernova envelope diameter.

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