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Superluminous supernova 2015bn in the nebular phase: evidence for the engine-powered explosion of a stripped massive star
M. Nicholl, E. Berger, R. Margutti +25
We present nebular-phase imaging and spectroscopy for the hydrogen-poor superluminous supernova SN 2015bn, at redshift z=0.1136, spanning +250-400 d after maximum light. The light…
The Superluminous Transient ASASSN-15lh as a Tidal Disruption Event from a Kerr Black Hole
G. Leloudas, M. Fraser, N. C. Stone +47
When a star passes within the tidal radius of a supermassive black hole, it will be torn apart. For a star with the mass of the Sun () and a non-spinning black hole with a…
Long-duration superluminous supernovae at late times
A. Jerkstrand, S. J. Smartt, C. Inserra +13
Nebular-phase observations and spectral models of Type Ic superluminous supernovae are presented. LSQ14an and SN 2015bn both display late-time spectra similar to galaxy-subtracted…
A search for an optical counterpart to the gravitational wave event GW151226
S. J. Smartt, K. C. Chambers, K. W. Smith +37
We present a search for an electromagnetic counterpart of the gravitational wave source GW151226. Using the Pan-STARRS1 telescope we mapped out 290 square degrees in the optical i_…
450 Days of Type II SN 2013ej in Optical and Near-Infrared
Fang Yuan, A. Jerkstrand, S. Valenti +31
We present optical and near-infrared photometric and spectroscopic observations of SN 2013ej, in galaxy M74, from 1 to 450 days after the explosion. SN 2013ej is a hydrogen-rich su…
SN 2015bn: a detailed multi-wavelength view of a nearby superluminous supernova
M. Nicholl, E. Berger, S. J. Smartt +42
We present observations of SN 2015bn (= PS15ae = CSS141223-113342+004332 = MLS150211-113342+004333), a Type I superluminous supernova (SLSN) at redshift . As well as bein…