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Late-Time Optical and UV Spectra of SN 1979C and SN 1980K
Robert A. Fesen, Christopher L. Gerardy, Alexei V. Filippenko +8
A low-dispersion Keck I spectrum of SN 1980K taken in August 1995 (t = 14.8 yr after explosion) and a November 1997 MDM spectrum (t = 17.0 yr) show broad 5500 km s^{-1} emission li…
Hubble Space Telescope WFPC2 Imaging of SN 1979C and Its Environment
Schuyler D. Van Dyk, Chien Y. Peng, Aaron J. Barth +6
The locations of supernovae in the local stellar and gaseous environment in galaxies contain important clues to their progenitor stars. As part of a program to study the environmen…
High z supernovae with the NGST
Tomas Dahlen, Claes Fransson
We use different assumptions for the combination of dust extinction and star formation up to redshifts z >= 5, as well as detailed modeling of supernova properties, to estimate the…
Radio Emission and Particle Acceleration in SN 1993J
Claes Fransson, Claes-Ingvar Björnsson
The radio light curves of SN 1993J are found to be well fit by a synchrotron spectrum, suppressed by external free-free absorption and synchrotron self-absorption. A standard r^-2…