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Prompt Ia Supernovae Are Significantly Delayed
Cody Raskin, Evan Scannapieco, James Rhoads +1
The time delay between the formation of a population of stars and the onset of type Ia supernovae (SNe Ia) sets important limits on the masses and nature of SN Ia progenitors. Here…
GRB 090423 at a redshift of z~8.1
R. Salvaterra, M. Della Valle, S. Campana +42
Gamma-ray bursts (GRBSs) are produced by rare types of massive stellar explosions. Their rapidly fading afterglows are often bright enough at optical wavelengths, that they are det…
Nebular emission-line profiles of Type Ib/c Supernovae - probing the ejecta asphericity
S. Taubenberger, S. Valenti, S. Benetti +11
In order to assess qualitatively the ejecta geometry of stripped-envelope core-collapse supernovae, we investigate 98 late-time spectra of 39 objects, many of them previously unpub…
Five supernova survey galaxies in the southern hemisphere. I. Optical and near-infrared database
A. A. Hakobyan, A. R. Petrosian, G. A. Mamon +8
The determination of the supernova (SN) rate is based not only on the number of detected events, but also on the properties of the parent galaxy population. This is the first paper…