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...
Tanaka, Masaomi, Yamanaka, Masayuki, Maeda, Keiichi, Kawabata, Koji S., Hattori, Takashi, Minezaki, Takeo, ...
We present optical spectroscopic and photometric observations of supernova (SN) 2008D, associated with the luminous X-ray transient 080109, at >300 days after the explosion (nebular phases). We also...
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...
Tanaka, Masaomi, Yamanaka, Masayuki, Maeda, Keiichi, Kawabata, Koji S., Hattori, Takashi, Minezaki, Takeo, ...
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)...
Asphericity in Supernova Explosions from Late-Time Spectroscopy (2008)
Maeda, Keiichi, Kawabata, Koji, Mazzali, Paolo A., Tanaka, Masaomi, Valenti, Stefano, Nomoto, Ken'ichi, ...
Core-collapse supernovae (CC-SNe) are the explosions that announce the death of massive stars. Some CC-SNe are linked to long-duration gamma-ray bursts (GRBs) and are highly aspherical. One important...
Asphericity in supernova explosions from late-time spectroscopy (2008)
Maeda, Keiichi, Kawabata, Koji, Mazzali, Paolo A., Tanaka, Masaomi, Valenti, Stefano, Nomoto, Ken'ichi, ...
Mazzali, Paolo A., Valenti, Stefano, Della Valle, Massimo, Chincarini, Guido, Sauer, Daniel N., Benetti, Stefano, ...
Keck and ESO-VLT View of the Symmetry of the Ejecta of the XRF/SN 2006aj (2007)
Mazzali, Paolo A., Foley, Ryan J., Deng, Jinsong, Patat, Ferdinando, Pian, Elena, Baade, Dietrich, ...
Nebular-phase spectra of SN 2006aj, which was discovered in coincidence with X-ray flash 060218, were obtained with Keck in 2006 July and the Very Large Telescope in 2006 September. At the latter...