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4 papers · 2 filters
Deja Vu All Over Again: The Reappearance of Supernova Refsdal
P. L. Kelly, S. A. Rodney, T. Treu +21
In Hubble Space Telescope (HST) imaging taken on 10 November 2014, four images of supernova (SN) "Refsdal" (redshift z=1.49) appeared in an Einstein-cross--like configuration (imag…
Large Slow Roll Parameters in Single Field Inflation
Jessica L. Cook, Lawrence M. Krauss
We initially consider two simple situations where inflationary slow roll parameters are large and modes no longer freeze out shortly after exiting the horizon, treating both cases…
Type Ia supernova Hubble diagram with near-infrared and optical observations
V. Stanishev, A. Goobar, R. Amanullah +10
We main goal of this paper is to test whether the NIR peak magnitudes of SNe Ia could be accurately estimated with only a single observation obtained close to maximum light, provid…
Reheating predictions in single field inflation
Jessica L. Cook, Emanuela Dimastrogiovanni, Damien A. Easson +1
Reheating is a transition era after the end of inflation, during which the inflaton is converted into the particles that populate the Universe at later times. No direct cosmologica…