6533b854fe1ef96bd12af615

RESEARCH PRODUCT

Expansion of SN 1993J

Antonio RiusThomas P. KrichbaumF. MantovaniP. DiamondDayton L. JonesA. AlberdiRobert A. PrestonIrwin I. ShapiroA. WitzelJ. M. MarcaideAlan R. WhitneyCorrado TrigilioRichard SchilizziJ. C. GuiradoEduardo Ros

subject

PhysicsMultidisciplinaryAstrophysics::High Energy Astrophysical PhenomenaIsotropyAstronomyAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsShock (mechanics)SupernovaVery-long-baseline interferometryAstrophysics::Solar and Stellar AstrophysicsCircular symmetryEjectaAstrophysics::Galaxy Astrophysics

description

A sequence of images from very long baseline interferometry shows that the young radio supernova SN 1993J is expanding with circular symmetry. However, the circularly symmetric images show emission asymmetries. A scenario in which freely expanding supernova ejecta shock mostly isotropic circumstellar material is strongly favored. The sequence of images constitutes the first “movie” of a radio supernova.

yearjournalcountryeditionlanguage
1995-12-01
10.1126/science.270.5241.1475http://hdl.handle.net/20.500.11769/242673