324 citations · 995 across the 9 of their papers we have counts for
9 papers
Type Ia Supernova Distances at z > 1.5 from the Hubble Space Telescope Multi-Cycle Treasury Programs: The Early Expansion Rate
Adam G. Riess, Steven A. Rodney, Daniel M. Scolnic +31
We present an analysis of 15 Type Ia supernovae (SNe Ia) at redshift z > 1 (9 at 1.5 < z < 2.3) recently discovered in the CANDELS and CLASH Multi-Cycle Treasury programs using WFC…
Dark energy two decades after: Observables, probes, consistency tests
Dragan Huterer, Daniel L Shafer
The discovery of the accelerating universe in the late 1990s was a watershed moment in modern cosmology, as it indicated the presence of a fundamentally new, dominant contribution…
Testing CDM at the lowest redshifts with SN Ia and galaxy velocities
Dragan Huterer, Daniel L. Shafer, Daniel Scolnic +1
Peculiar velocities of objects in the nearby universe are correlated due to the gravitational pull of large-scale structure. By measuring these velocities, we have a unique opportu…
No evidence for bulk velocity from type Ia supernovae
Dragan Huterer, Daniel L. Shafer, Fabian Schmidt
We revisit the effect of peculiar velocities on low-redshift type Ia supernovae. Velocities introduce an additional guaranteed source of correlations between supernova magnitudes t…
Robust model comparison disfavors power law cosmology
Daniel L. Shafer
Late-time power law expansion has been proposed as an alternative to the standard cosmological model and shown to be consistent with some low-redshift data. We test power law expan…
Multiplicative errors in the galaxy power spectrum: self-calibration of unknown photometric systematics for precision cosmology
Daniel L. Shafer, Dragan Huterer
We develop a general method to "self-calibrate" observations of galaxy clustering with respect to systematics associated with photometric calibration errors. We first point out the…
Chasing the phantom: A closer look at Type Ia supernovae and the dark energy equation of state
Daniel L. Shafer, Dragan Huterer
Some recent observations provide evidence for phantom dark energy -- a value of the dark energy equation of state less than the cosmological-constant value of . We focus…
Principal components of dark energy with SNLS supernovae: the effects of systematic errors
Eduardo J. Ruiz, Daniel L. Shafer, Dragan Huterer +1
We study the effects of current systematic errors in Type Ia supernova (SN Ia) measurements on dark energy (DE) constraints using current data from the Supernova Legacy Survey (SNL…
Baryons in QCD_{AS} at Large N_c: A Roundabout Approach
Thomas D. Cohen, Daniel L. Shafer, Richard F. Lebed
QCD_{AS}, a variant of large N_c QCD in which quarks transform under the color two-index antisymmetric representation, reduces to standard QCD at N_c = 3 and provides an alternativ…