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The Host Galaxies of Type Ia Supernovae Discovered by the Palomar Transient Factory
Y. -C. Pan, M. Sullivan, K. Maguire +16
We present spectroscopic observations of the host galaxies of 82 low-redshift type Ia supernovae (SNe Ia) discovered by the Palomar Transient Factory (PTF). We determine star-forma…
A statistical analysis of circumstellar material in Type Ia supernovae
Kate Maguire, Mark Sullivan, Ferdinando Patat +42
A key tracer of the elusive progenitor systems of Type Ia supernovae (SNe Ia) is the detection of narrow blueshifted time-varying Na I D absorption lines, interpreted as evidence o…
Discovery, Progenitor & Early Evolution of a Stripped Envelope Supernova iPTF13bvn
Yi Cao, Mansi M. Kasliwal, Iair Arcavi +24
The intermediate Palomar Transient Factory reports our discovery of a young supernova, iPTF13bvn, in the nearby galaxy, NGC5806 (22.5Mpc). Our spectral sequence in the optical and…
GRB 081007 and GRB 090424: the surrounding medium, outflows and supernovae
Zhi-Ping Jin, Stefano Covino, Massimo Della Valle +34
We discuss the results of the analysis of multi-wavelength data for the afterglows of GRB 081007 and GRB 090424, two bursts detected by Swift. One of them, GRB 081007, also shows a…
The very energetic, broad-lined type Ic Supernova 2010ah (PTF10bzf) in the context of GRB/SNe
Paolo A. Mazzali, Emma S. Walker, Elena Pian +4
SN2010ah, a very broad-lined type Ic SN discovered by the Palomar Transient Factory, was interesting because of its relatively high luminosity and the high velocity of the absorpti…
Hubble Space Telescope spectra of the type Ia supernova SN2011fe: a tail of low-density, high-velocity material with Z<Zsolar
Paolo Mazzali, Mark Sullivan, Stephan Hachinger +9
Hubble Space Telescope spectroscopic observations of the nearby type Ia supernova (SN Ia) SN2011fe, taken on 10 epochs from -13.1 to +40.8 days relative to B-band maximum light, an…