See Change: Cosmology Analysis Update for the Supernova Cosmology Project High-z Cluster Supernova Survey

Brian Hayden, Gregory Aldering, Rahman Amanullah, Kyle Barbary, Hans Bohringer, Kyle Robert Boone, Mark Brodwin, Carlos Cunha, Miles Currie, Susana Deustua, Samantha Dixon, Peter Eisenhardt, Rene Fassbender, Andrew Fruchter, Michael Gladders, Anthony Gonzalez, Ariel Goobar, Hendrik Hildebrandt, Matt Hilton, Henk HoekstraIsobel Hook, Xiaosheng Huang, Dragan Huterer, Myungkook James Jee, Alex Kim, Marek Kowalski, Chris Lidman, Eric Linder, Kyle Luther, Joshua Meyers, Adam Muzzin, Jakob Nordin, Reynald Pain, Saul Perlmutter, Johan Richard, Piero Rosati, Eduardo Rozo, David Rubin, Pilar Ruiz-Lapuente, Eli Rykoff, Joana Santos, Clare Myers Saunders, Caroline Sofiatti, Anthony L. Spadafora, Spencer Stanford, Daniel Stern, Nao Suzuki, Tracy Webb, Risa Wechsler, Steven Williams, Jon Willis, Gillian Wilson, Mike Yen

Research output: Contribution to conferencePaper

Abstract

The Supernova Cosmology Project has finished executing a large (174 orbits, cycles 22-23) Hubble Space Telescope program, which has measured ~30 type Ia Supernovae above z~1 in the highest-redshift, most massive galaxy clusters known to date. We present the status of the ongoing blinded cosmology analysis, demonstrating substantial improvement to the uncertainty on the Dark Energy density above z~1. Our extensive HST and ground-based campaign has already produced unique results; we have confirmed several of the highest redshift cluster members known to date, confirmed the redshift of one of the most massive galaxy clusters expected across the entire sky, and characterized one of the most extreme starburst environments yet known in a z~1.7 cluster. We have also discovered a lensed SN Ia at z=2.22 magnified by a factor of ~2.8, which is the highest spectroscopic redshift SN Ia currently known.
Original languageEnglish
Pages327.02
Publication statusPublished - 1 Jan 2018

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