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SN 2011fu: A type IIb Supernova with a luminous double-peaked light curve
A. Morales-Garoffolo, N. Elias-Rosa, M. Bersten +17
We present optical and near infrared observations of the type IIb supernova (SN) 2011fu from a few days to d after explosion. The SN presents a double-peaked light curve…
Measuring nickel masses in Type Ia supernovae using cobalt emission in nebular phase spectra
Michael J. Childress, D. John Hillier, Ivo Seitenzahl +34
The light curves of Type Ia supernovae (SNe Ia) are powered by the radioactive decay of Ni to Co at early times, and the decay of Co to Fe from ~60 days…
SN~2012cg: Evidence for Interaction Between a Normal Type Ia Supernova and a Non-Degenerate Binary Companion
G. H. Marion, Peter J. Brown, Jozsef Vinkó +26
We report evidence for excess blue light from the Type Ia supernova SN 2012cg at fifteen and sixteen days before maximum B-band brightness. The emission is consistent with predicti…
Science with KRAKENS
Benjamin A. Mazin, George Becker, Kevin France +12
The Keck science community is entering an era of unprecedented change. Powerful new instrument like ZTF, JWST, LSST, and the ELTs will catalyze this change, and we must be ready to…
Detection of a Type IIn Supernova in Optical Follow-up Observations of IceCube Neutrino Events
M. G. Aartsen, K. Abraham, M. Ackermann +331
The IceCube neutrino observatory pursues a follow-up program selecting interesting neutrino events in real-time and issuing alerts for electromagnetic follow-up observations. In Ma…
Strong Ultraviolet Pulse From a Newborn Type Ia Supernova
Yi Cao, S. R. Kulkarni, D. Andrew Howell +19
Type Ia supernovae are destructive explosions of carbon oxygen white dwarfs. Although they are used empirically to measure cosmological distances, the nature of their progenitors r…