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The Highly Energetic Expansion of SN2010bh Associated with GRB 100316D
Filomena Bufano, Elena Pian, Jesper Sollerman +50
We present the spectroscopic and photometric evolution of the nearby (z = 0.059) spectroscopically confirmed type Ic supernova, SN 2010bh, associated with the soft, long-duration g…
Supernova 2011fe from an Exploding Carbon-Oxygen White Dwarf Star
Peter E. Nugent, Mark Sullivan, S. Bradley Cenko +36
Type Ia supernovae (SNe Ia) have been used empirically as standardized candles to reveal the accelerating universe even though fundamental details, such as the nature of the progen…
Unburned Material in the Ejecta of Type Ia Supernovae
Gastón Folatelli, M. M. Phillips, Nidia Morrell +17
(Abridged) The presence of unburned material in the ejecta of normal Type Ia supernovae (SNeIa) is investigated using early-time spectroscopy obtained by the CSP. The tell-tale sig…
Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope
Xiaofeng Wang, Lifan Wang, Alexei V. Filippenko +93
We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Sur…
Evidence for a compact Wolf-Rayet progenitor for the Type Ic supernova PTF 10vgv
A. Corsi, E. O. Ofek, A. Gal-Yam +22
We present the discovery of PTF 10vgv, a Type Ic supernova detected by the Palomar Transient Factory, using the Palomar 48-inch telescope (P48). R-band observations of the PTF 10vg…
A Swift Look at SN 2011fe: The Earliest Ultraviolet Observations of a Type Ia Supernova
Peter J. Brown, Kyle S. Dawson, Massimiliano de Pasquale +8
We present the earliest ultraviolet (UV) observations of the bright Type Ia supernova SN 2011fe/PTF11kly in the nearby galaxy M101 at a distance of only 6.4 Mpc. It was discovered…
PTF11eon/SN2011dh: Discovery of a Type IIb Supernova From a Compact Progenitor in the Nearby Galaxy M51
Iair Arcavi, Avishay Gal-Yam, Ofer Yaron +40
On May 31, 2011 UT a supernova (SN) exploded in the nearby galaxy M51 (the Whirlpool Galaxy). We discovered this event using small telescopes equipped with CCD cameras, as well as…
SN 2009jf: a slow-evolving stripped-envelope core-collapse supernova
S. Valenti, M. Fraser, S. Benetti +28
We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova, spanning from ~20 days before B-band maximum to one year after maximum.…
Real-Time Detection and Rapid Multiwavelength Follow-up Observations of a Highly Subluminous Type II-P Supernova from the Palomar Transient Factory Survey
Avishay Gal-Yam, Mansi M. Kasliwal, Iair Arcavi +29
The Palomar Transient Factory (PTF) is an optical wide-field variability survey carried out using a camera with a 7.8 square degree field of view mounted on the 48-in Oschin Schmid…
NERO - A Post Maximum Supernova Radiation Transport Code
I. Maurer, A. Jerkstrand, P. A. Mazzali +5
The interpretation of supernova (SN) spectra is essential for deriving SN ejecta properties such as density and composition, which in turn can tell us about their progenitors and t…
The nebular spectrum of the type Ia supernova 2003hv: evidence for a non-standard event
Paolo A. Mazzali, I. Maurer, M. Stritzinger +3
The optical and near-infrared late-time spectrum of the under-luminous Type Ia supernova 2003hv is analysed with a code that computes nebular emission from a supernova nebula. Synt…
XRF 100316D / SN 2010bh and the Nature of Gamma Ray Burst Supernovae
Z. Cano, D. Bersier, C. Guidorzi +21
We present ground-based and HST optical and infrared observations of XRF 100316D / SN 2010bh. It is seen that the optical light curves of SN 2010bh evolve at a faster rate than the…
The Subluminous and Peculiar Type Ia Supernova PTF09dav
M. Sullivan, M. M. Kasliwal, P. E. Nugent +17
PTF09dav is a peculiar subluminous type Ia supernova (SN) discovered by the Palomar Transient Factory (PTF). Spectroscopically, it appears superficially similar to the class of sub…
Supernova Discoveries 2010-2011: Statistics and Trends
Avishay Gal-Yam, Paolo Mazzali, Ilan Manulis +1
We have inspected all supernova discoveries reported during 2010 and 2011 (538 and 926 events, respectively). We examine the statistics of all discovered objects, as well as those…
Effects of Explosion Asymmetry and Viewing Angle on the Type Ia Supernova Color and Luminosity Calibration
K. Maeda, G. Leloudas, S. Taubenberger +7
Phenomenological relations exist between the peak luminosity and other observables of type Ia supernovae (SNe~Ia), that allow one to standardize their peak luminosities. However, s…
The He-rich Stripped-Envelope Core-Collapse Supernova 2008ax
S. Taubenberger, H. Navasardyan, J. I. Maurer +15
Extensive optical and near-infrared (NIR) observations of the type IIb supernova 2008ax are presented, covering the first year after the explosion. The light curve is mostly simila…
PTF 10bzf (SN 2010ah): a broad-line Ic supernova discovered by the Palomar Transient Factory
A. Corsi, E. O. Ofek, D. A. Frail +26
We present the discovery and follow-up observations of a broad-line type-Ic supernova (SN), PTF 10bzf (SN 2010ah), detected by the Palomar Transient Factory (PTF) on 2010 February…