Abstract
view Abstract Citations (20) References (31) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS VLBI Observations of SN 1986J: Deviations from Spherical Symmetry in Its Radio Brightness Distribution Bartel, Norbert ; Rupen, Michael R. ; Shapiro, Irwin I. Abstract The 1987.4 radio brightness distribution at 5 GHz of the unusual supernova SN 1986J can be described by an elliptical Gaussian model with a half-width at half-maximum of the major axis of 0.80 +/- 0.12 mas and a ratio between the minor axis and the major axis of 0.62 +/- 0.12. This result could be due to an anisotropic flow pattern of the expanding gas and/or to peculiar variations of the brightness across the emission region. We discuss the implications of these possibilities for the understanding of the explosion process, the density distribution of the ambient medium, and the brightness distribution of a possible pulsar nebula. Publication: The Astrophysical Journal Pub Date: February 1989 DOI: 10.1086/185384 Bibcode: 1989ApJ...337L..85B Keywords: Brightness Distribution; Radio Spectra; Supernovae; Very Long Base Interferometry; Anisotropy; Astronomical Models; Radio Sources (Astronomy); Stellar Envelopes; Astronomy; INTERFEROMETRY; RADIO SOURCES: GENERAL; STARS: SUPERNOVAE full text sources ADS | data products NED (4) SIMBAD (3)
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