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Wind Interaction Models for Gamma-Ray Burst Afterglows: The Case for Two Types of Progenitors
Beginning with the γ-ray bursts GRB 970228 and GRB 970508, a standard model for the interpretation of gamma-ray burst (GRB) afterglows emerged involving synchrotron emission from a constant-energyExpand
The transition region and coronal explorer
The Transition Region and Coronal Explorer (TRACE) satellite, launched 2 April 1998, is a NASA Small Explorer (SMEX) that images the solar photosphere, transition region and corona with unprecedentedExpand
Wind from a starburst galaxy nucleus
Galaxies with highly active star formation regions (starburst galaxies) are inferred to have high supernova rates in the region of activity1,2. If most of the supernova energy input is thermalized, aExpand
The radio and X-ray emission from type II supernovae.
The interaction of the outer parts of a supernova envelope with circumstellar matter gives rise to a high-energy density shell. The equation of motion of the shell is deduced based on theExpand
Synchrotron Self-Absorption in Radio Supernovae
The radio emission from supernovae has been modeled as synchrotron emission from the interaction between the supernova and a presupernova stellar wind. The emission shows a late power-law decline andExpand
Young core collapse supernova remnants and their supernovae
Massive star supernovae can be divided into four categories, depending on the amount of mass loss from the progenitor star and the star's radius: red supergiant stars with most of the H envelopeExpand
Relativistic ejecta from X-ray flash XRF 060218 and the rate of cosmic explosions
Radio and X-ray observations of XRF 060218 (associated with supernova SN 2006aj), the second-nearest GRB identified until now, are reported, showing that this event is a hundred times less energetic but ten times more common than cosmological GRBs. Expand
Circumstellar Emission from Type Ib and Ic Supernovae
The presumed Wolf-Rayet star progenitors of Type Ib/c supernovae have fast, low-density winds, and the shock waves generated by the supernova interaction with the wind are not expected to beExpand