795 citations · 1.1k across the 9 of their papers we have counts for
9 papers
Missing Power vs low-l Alignments in the Cosmic Microwave Background: No Correlation in the Standard Cosmological Model
Devdeep Sarkar, Dragan Huterer, Craig J. Copi +2
On large angular scales (greater than about 60 degrees), the two-point angular correlation function of the temperature of the cosmic microwave background (CMB), as measured (outsid…
No Evidence for Dark Energy Dynamics from a Global Analysis of Cosmological Data
Paolo Serra, Asantha Cooray, Daniel E. Holz +3
We use a variant of principal component analysis to investigate the possible temporal evolution of the dark energy equation of state, w(z). We constrain w(z) in multiple redshift b…
A Redetermination of the Hubble Constant with the Hubble Space Telescope from a Differential Distance Ladder
Adam G. Riess, Lucas Macri, Stefano Casertano +8
We report observations of 240 Cepheid variables obtained with the Near Infrared Camera (NICMOS) through the F160W filter on the Hubble Space Telescope (HST). The Cepheids are distr…
Implications of Two Type Ia Supernova Populations for Cosmological Measurements
Devdeep Sarkar, Alexandre Amblard, Asantha Cooray +1
Recent work suggests that Type Ia supernovae (SNe) are composed of two distinct populations: prompt and delayed. By explicitly incorporating properties of host galaxies, it may be…
Weak Lensing of the Primary CMB Bispectrum
Asantha Cooray, Devdeep Sarkar, Paolo Serra
The cosmic microwave background (CMB) bispectrum is a well-known probe of the non-Gaussianity of primordial perturbations. Just as the intervening large-scale structure modifies th…
Cosmic Shear from Scalar-Induced Gravitational Waves
Devdeep Sarkar, Paolo Serra, Asantha Cooray +2
Weak gravitational lensing by foreground density perturbations generates a gradient mode in the shear of background images. In contrast, cosmological tensor perturbations induce a…