Greg Aldering, Bob Cahn, Alex Kim, and Saul Perlmutter (LBNL) "Type Ia Supernova Program at LBNL: Status and Plans"

ABSTRACT:
Supernovae remain a central part of dark energy science, complementing the programs with BAO and weak lensing.  The LBNL group is active with the nearby supernova search with the SN factory, a role in the intermediate-redshift DES supernova program, and the collection of increasing numbers of high-z Type Ia supernovae.  The SuperNova factory has revealed a number of systematic issues and some means to address them.  While LSST will discover hundreds of thousands of supernovae, only if the systematic issues can be addressed will a Stage-IV experiment be possible.  Combining WFIRST and LSST with what is being learned at the SN factory and at DES can provide the path to Stage-IV.