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Analysis of blue-shifted emission peaks in type II supernovae
J. P. Anderson, L. Dessart, C. P. Gutierrez +10
In classical P-Cygni profiles, theory predicts emission to peak at zero rest velocity. However, supernova spectra exhibit emission that is generally blue shifted. While this charac…
H-alpha Spectral diversity of type II supernovae
Claudia P. Gutiérrez, Joseph P. Anderson, Mario Hamuy +8
We present a spectroscopic analysis of the H-alpha profiles of hydrogen-rich type II supernovae. A total of 52 type II supernovae having well sampled optical light curves and spect…
Type II-Plateau supernovae as metallicity probes of the Universe
L. Dessart, C. P. Gutierrez, M. Hamuy +11
We explore a method for metallicity determinations based on quantitative spectroscopy of type II-Plateau (II-P) supernovae (SNe). For consistency, we first evolve a set of 15Msun m…