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Comparison of progenitor mass estimates for the type IIP SN 2012A
L. Tomasella, E. Cappellaro, M. Fraser +24
We present the one-year long observing campaign of SN 2012A which exploded in the nearby (9.8 Mpc) irregular galaxy NGC 3239. The photometric evolution is that of a normal type IIP…
'Super-Chandrasekhar' Type Ia Supernovae at nebular epochs
Stefan Taubenberger, Markus Kromer, Stephan Hachinger +11
We present a first systematic comparison of superluminous Type Ia supernovae (SNe Ia) at late epochs, including previously unpublished photometric and spectroscopic observations of…
Multi-epoch high-resolution spectroscopy of SN2011fe - Linking the progenitor to its environment
F. Patat, M. A. Cordiner, N. L. J. Cox +10
This study attempts to establish a link between the reasonably well known nature of the progenitor of SN2011fe and its surrounding environment. This is done with the aim of enablin…
High luminosity, slow ejecta and persistent carbon lines: SN 2009dc challenges thermonuclear explosion scenarios
S. Taubenberger, S. Benetti, M. Childress +22
SN 2009dc shares similarities with normal Type Ia supernovae, but is clearly overluminous, with a (pseudo-bolometric) peak luminosity of log(L) = 43.47 [erg/s]. Its light curves de…
Abundance stratification in Type Ia supernovae - III. The normal SN 2003du
Masaomi Tanaka, Paolo A. Mazzali, Vallery Stanishev +3
The element abundance distributions in the ejecta of Type Ia supernova (SN) is studied by modelling a time series of optical spectra of SN 2003du until ~1 year after the explosion.…
Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415
Deborah J. Hunter, Stefano Valenti, Rubina Kotak +26
We present photometric and spectroscopic observations at optical and near-infrared wavelengths of the nearby type Ic SN 2007gr. These represent the most extensive data-set to date…