The Key Role of Supernova Spectrophotometry in the Next-Decade Dark Energy Science Program
by Saul Perlmutter, Greg Aldering, Charlie Baltay, Susana Deustua, Wendy Freedman, Andy Fruchter, David Rubin, Masao Sako, and Nicholas Suntzeff
Published onMay 31, 2019
The Key Role of Supernova Spectrophotometry in the Next-Decade Dark Energy Science Program
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Abstract
For LSST and WFIRST to together take a major step forward in the SN measurements of dark energy the leading systematics — SN population drift and changes in dust properties — both must be constrained. This requires space-based instrumentation to provide the wide-wavelength-range spectrophotometry, not just imaging, to measure these two effects.
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