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Late-time spectral line formation in Type IIb supernovae, with application to SN 1993J, SN 2008ax, and SN 2011dh
A. Jerkstrand, M. Ergon, S. J. Smartt +5
We investigate line formation processes in Type IIb supernovae (SNe) from 100 to 500 days post-explosion using spectral synthesis calculations. The modeling identifies the nuclear…
The Type IIb SN 2011dh - Two years of observations and modelling of the lightcurves
M. Ergon, A. Jerkstrand, J. Sollerman +14
We present optical and near-infrared (NIR) photometry and spectroscopy as well as modelling of the lightcurves of the Type IIb supernova (SN) 2011dh. Our extensive dataset spans tw…
The rise and fall of the Type Ib supernova iPTF13bvn - Not a massive Wolf-Rayet star
C. Fremling, J. Sollerman, F. Taddia +9
We investigate iPTF13bvn, a core-collapse (CC) supernova (SN) in the nearby spiral galaxy NGC 5806. This object was discovered by the intermediate Palomar Transient Factory very so…