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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…
On the progenitor of the Type Ic SN 2013dk in the Antennae Galaxies
Nancy Elias-Rosa, Andrea Pastorello, Justyn R. Maund +7
We report the results of our search for the progenitor candidate of SN 2013dk, a Type Ic supernova (SN) that exploded in the Antennae Galaxy system. We compare pre-explosion Hubble…
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…