Hunter, Deborah J., Valenti, Stefano, Kotak, Rubina, Meikle, Peter, Taubenberger, Stefan, Pastorello, Andrea, ...
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 of any supernova of...
A low energy core-collapse supernova without a hydrogen envelope (2009)
Valenti, Stefano, Pastorello, Andrea, Cappellaro, Enrico, Benetti, Stefano, Mazzali, Paolo, Manteca, Jose, ...
The final fate of massive stars depends on many factors, including mass, rotation rate, magnetic fields and metallicity. Theory suggests that some massive stars (initially greater than 25-30 solar...
Spectral luminosity indicators in SNe Ia — The R(Si II) line strength ratio (2009)
Hachinger, Stephan, Mazzali, Paolo A., Tanaka, Masaomi, Hillebrandt, Wolfgang, Benetti, Stefano
O Patat, Stefano Benetti, Massimo Turatto
Due to the crucial role played by Type Ia supernovae (SNe) in modern cosmology (see e.g. the review by Leibundgut 2001), it is essential to understand the systematics which might affect the recent...
Mazzali, Paolo A., Valenti, Stefano, Della Valle, Massimo, Chincarini, Guido, Sauer, Daniel N., Benetti, Stefano, ...
The only supernovae (SNe) to have shown early gamma-ray or X-ray emission thus far are overenergetic, broad-lined Type Ic SNe (Hypernovae - HNe). Recently, SN 2008D shows several novel features: (i)...
Hachinger, Stephan, Mazzali, Paolo A., Tanaka, Masaomi, Hillebrandt, Wolfgang, Benetti, Stefano
SNe Ia are good distance indicators because the shape of their light curves, which can be measured independently of distance, varies smoothly with luminosity. This suggests that SNe Ia are a single...
The outermost ejecta of type Ia supernovae (2008)
Tanaka, Masaomi, Mazzali, Paolo A., Benetti, Stefano, Nomoto, Ken'ichi, Elias-Rosa, Nancy, Kotak, Rubina, ...
Seeking for the progenitors of type Ia supernovae (2008)
Patat, Ferdinando, Chandra, Poonam, Chevalier, Roger, Justham, Stephen, Podsiadlowski, Philipp, Wolf, Christian, ...
The progenitors of type I SNe (2008)
Mazzali, Paolo A., Nomoto, Ken'ichi, Maeda, Keiichi, Deng, Jinsong, Benetti, Stefano, Röpke, Friedrich, ...
Mazzali, Paolo A., Valenti, Stefano, Della Valle, Massimo, Chincarini, Guido, Sauer, Daniel N., Benetti, Stefano, ...
Dust along the SNe lines-of-sight (2008)
Elias-Rosa, Nancy, Beckman, J. E., Benetti, Stefano, Cappellaro, Enrico, Turatto, Massimo
The Outermost Ejecta of Type Ia Supernovae (2007)
Tanaka, Masaomi, Mazzali, Paolo A., Benetti, Stefano, Nomoto, Ken'ichi, Elias-Rosa, Nancy, Kotak, Rubina, ...
The properties of the highest velocity ejecta of normal Type Ia supernovae (SNe Ia) are studied via models of very early optical spectra of 6 SNe. At epochs earlier than 1 week before maximum, SNe...
Hypernova Signatures in the Late Rebrightening of GRB 050525A (2007)
Della Valle, Massimo, Malesani, Daniele, Bloom, Joshua S., Benetti, Stefano, Chincarini, Guido, D'Avanzo, Paolo, ...
We report observations of GRB 050525A, for which a Gemini North spectrum shows its redshift to be z = 0.606. This is the third closest long GRB discovered by Swift. We observed its afterglow using...
A common explosion mechanism for type Ia supernovae (2007)
Mazzali, Paolo A., Röpke, Friedrich K., Benetti, Stefano, Hillebrandt, Wolfgang
Consistent estimates of (56)Ni yields for type Ia supernovae (2006)
Stritzinger, Maximilian, Mazzali, Paolo, Sollerman, Jesper, Benetti, Stefano
We present (56)Ni mass estimates for seventeen well-observed type Ia supernovae determined by two independent methods. Estimates of the (56)Ni mass for each type Ia supernova are determined from (1)...
Spectroscopy of the type Ia supernova SN 2002er: days -11 to +215 (2005)
Kotak, Rubina, Meikle, Peter, Pignata, Giuliano, Stehle, Matthias, Smartt, Steve, Benetti, Stefano, ...
We present an extensive set of optical spectroscopy of the nearby type Ia supernova, SN 2002er, with 24 epochs spanning -11 to +34 days. Its spectral evolution is fairly typical of a type Ia...
An asymmetric energetic type Ic supernova viewed off-axis, and a link to gamma ray bursts (2005)
Mazzali, Paolo A., Kawabata, Koji S., Maeda, Keiichi, Nomoto, Ken'ichi, Filippenko, Alexei V., Ramirez-Ruiz, Enrico, ...
The tetra-lobed planetary nebula NGC 1501 (2000)
Sabbadin, Franco, Benetti, Stefano, Cappellaro, Enrico, Turatto, Massimo
Direct imagery and long-slit, spatially resolved echellograms of the high excitation planetary nebula NGC 1501 allowed us to study in detail the expansion velocity field, the physical conditions...
SN 1995ah-the first supernova observed in a Blue Compact Dwarf galaxy (1997)
Popescu, Cristina C., Rafanelli, Piero, Benetti, Stefano, Hopp, Ulrich, Birkle, Kurt, Elsaesser, Hans
We present the properties of the supernova SN 1995ah discovered in a Blue Compact Dwarf galaxy (BCD) around 10 days after the maximum. This is the first supernova event observed in a BCD. The...