Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pazh...14..725g&link_type=abstract
Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 14, Aug. 1988, p. 725-736. In Russian.
Astronomy and Astrophysics
Astronomy
1
Density Distribution, Interstellar Space, Stellar Evolution, Supernova Remnants, Anisotropy, Celestial Sphere, Molecular Clouds, Shock Waves, Stellar Envelopes
Scientific paper
A simple approximate method to calculate the adiabatic stages of supernova remnants evolution in nonuniform media is presented. The remnant evolution by a supernova explosion in the interstellar medium with exponential density gradient, in a molecular cloud, and near the boundary between two phases of the interstellar medium is calculated. The last case is described analytically. It is shown that although the density gradient leads to great anisotropy in the remnant parameter distribution, the visible form of the remnant is often like a sphere with centre, that is not coinciding with the presupernova position and with the possible position of the stellar remnant.
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