The Union3 Supernova Ia Compilation

David Rubin, Greg Scott Aldering, Rahman Amanullah, Kyle H. Barbary, Adam Bruce, Greta Chappell, Miles Currie, Kyle S. Dawson, Susana E. Deustua, Mamoru Doi, Hannah Fakhouri, Andrew S. Fruchter, Rachel A. Gibbons, Ariel Goobar, Eric Hsiao, Xiaosheng Huang, Yutaka Ihara, Alex G. Kim, Robert A. Knop, Marek KowalskiEvan Krechmer, Chris Lidman, Eric Linder, Joshua Meyers, Tomoki Morokuma, Jakob Nordin, Saul Perlmutter, Pascal Ripoche, Eli S. Rykoff, Clare Saunders, Anthony L. Spadafora, Nao Suzuki, Naohiro Takanashi, Naoki Yasuda, Supernova Cosmology Project

Research output: Contribution to conferencePaper

Abstract

High-redshift supernovae observed with the Hubble Space Telescope (HST) are crucial for constraining any time variation in dark energy. In a forthcoming paper (Rubin+, in prep), we will present a cosmological analysis incorporating existing supernovae with improved calibrations, and new HST-observed supernovae. We combine these data with most of the world's current literature data, and fit using SALT2-4 to create the Union3 Supernova compilation. We present a new analysis framework that allows non-linear light-curve width and color corrections, direct modeling of color dispersion, and a redshift-dependent host-mass correction.
Original languageEnglish
Pages255.12
Publication statusPublished - 1 Jan 2015

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