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Incredible explosions and LCOGT

In the past few years new classes of supernovae have been discovered that are both brighter and fainter than previously thought possible.  The superluminous supernovae have luminosities 100 times greater than a core-collapse supernova, and their origin is a mystery.  I will present data on two of the most distant and best-observed events from the Supernova Legacy Survey, and the first radiative transfer model that gives insight into their origin.  They seem to result from the creation and spin-down of a magnetar.  I’ll also discuss a range of both normal and exotic supernovae from the local universe, including an even newer class of superluminous supernovae, and show how new observations are revealing or limiting SN progenitors for the first time.  The Las Cumbres Observatory Global Telescope Network (LCOGT) is one of the latest tools allowing new kinds of observations with its 11 node network of one and two meter robotic telescopes spanning the globe.  We have now begun the LCOGT Supernova Key Project, which will collect the largest sample of low-redshift supernovae ever obtained:  lightcurves and spectroscopy on 450 supernovae over 3 years for use in cosmology, understanding explosions, and determining supernova progenitors.

Cody Hall

Andy Howell (LCOGT)

October 03, 2014
14:00 - 15:00