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The superluminous supernova PS1-11ap: bridging the gap between low and high redshift
M. McCrum, S. J. Smartt, R. Kotak +37
We present optical photometric and spectroscopic coverage of the superluminous supernova (SLSN) PS1-11ap, discovered with the Pan-STARRS1 Medium Deep Survey at z = 0.524. This intr…
Slowly fading super-luminous supernovae that are not pair-instability explosions
M. Nicholl, S. J. Smartt, A. Jerkstrand +57
Super-luminous supernovae that radiate more than 10^44 ergs per second at their peak luminosity have recently been discovered in faint galaxies at redshifts of 0.1-4. Some evolve s…
The supernova CSS121015:004244+132827: a clue for understanding super-luminous supernovae
S. Benetti, M. Nicholl, E. Cappellaro +24
We present optical photometry and spectra of the super luminous type II/IIn supernova CSS121015:004244+132827 (z=0.2868) spanning epochs from -30 days (rest frame) to more than 200…
The first month of evolution of the slow rising type II-P SN 2013ej in M74
S. Valenti, D. Sand, A. Pastorello +14
We present early photometric and spectroscopic observations of SN 2013ej, a bright type IIP supernova in M74. SN 2013ej is one of the closest SNe ever discovered. The available arc…
On the progenitor of the Type IIP SN 2013ej in M74
Morgan Fraser, Justyn R. Maund, Stephen J. Smartt +10
We use natural seeing imaging of SN 2013ej in M74 to identify a progenitor candidate in archival {\it Hubble Space Telescope} + ACS images. We find a source coincident with the SN…
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…