377 citations · 9k across the 116 of their papers we have counts for
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New constraints on gravity from clusters of galaxies
Matteo Cataneo, David Rapetti, Fabian Schmidt +6
The abundance of massive galaxy clusters is a powerful probe of departures from General Relativity (GR) on cosmic scales. Despite current stringent constraints placed by stellar an…
Time-Varying Potassium in High-Resolution Spectra of the Type Ia Supernova 2014J
M. L. Graham, S. Valenti, B. J. Fulton +9
We present a time series of the highest resolution spectra yet published for the nearby Type Ia supernova (SN) 2014J in M82. They were obtained at 11 epochs over 33 days around pea…
Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
Patrick L. Kelly, Steven A. Rodney, Tommaso Treu +28
In 1964, Refsdal hypothesized that a supernova whose light traversed multiple paths around a strong gravitational lens could be used to measure the rate of cosmic expansion. We rep…
Distances with <4% Precision from Type Ia Supernovae in Young Star-Forming Environments
Patrick L. Kelly, Alexei V. Filippenko, David L. Burke +3
The luminosities of Type Ia supernovae (SNe), the thermonuclear explosions of white-dwarf stars, vary systematically with their intrinsic color and the rate at which they fade. Fro…
Reverberation Mapping of the Kepler-Field AGN KA1858+4850
Liuyi Pei, Aaron J. Barth, Greg S. Aldering +40
KA1858+4850 is a narrow-line Seyfert 1 galaxy at redshift 0.078 and is among the brightest active galaxies monitored by the Kepler mission. We have carried out a reverberation mapp…
On the Nature of Type Ia-CSM Supernovae: Optical and Near-Infrared Spectra of SN 2012ca and SN 2013dn
Ori D. Fox, Jeffrey M. Silverman, Alexei V. Filippenko +17
A growing subset of Type Ia supernovae (SNe Ia) show evidence for unexpected interaction with a dense circumstellar medium (SNe Ia-CSM). The precise nature of the progenitor, howev…