306 citations · 513 across the 12 of their papers we have counts for
11 papers · 1 filter
The Hubble tension in the non-flat Super- model
Saroj Adhikari
We investigate the Hubble tension in the non-flat Super- model. The non-flat Super- model extends the Super- model by including the spatial curv…
Super-CMB fluctuations and the Hubble tension
Saroj Adhikari, Dragan Huterer
We study the covariance in the angular power spectrum estimates of CMB fluctuations when the primordial fluctuations are non-Gaussian. The non-Gaussian covariance comes from a nonz…
Covariance of CMB anomalies
Jessica Muir, Saroj Adhikari, Dragan Huterer
Several unexpected features are observed at large angular scales in the CMB temperature anisotropy measurements by both WMAP and Planck. These include the lack of both variance and…
A new measure of tension between experiments
Saroj Adhikari, Dragan Huterer
Tensions between cosmological measurements by different surveys or probes have always been important --- and are presently much discussed --- as they may lead to evidence of new ph…
The Quest for the Inflationary Spectral Runnings in the Presence of Systematic Errors
Xiaolei Li, Noah Weaverdyck, Saroj Adhikari +3
Cosmological inflation predicts that the scalar spectral index "runs" with scale. Constraints on the values of the spectral runnings, and…
Statistical anisotropies in temperature and polarization fluctuations from a scale-dependent trispectrum
Saroj Adhikari, Anne-Sylvie Deutsch, Sarah Shandera
We study statistical anisotropies generated in the observed two-point function of the cosmic microwave background (CMB) fluctuations if the primordial statistics are non-Gaussian.…
Constraining primordial and gravitational mode coupling with the position-dependent bispectrum of the large-scale structure
Saroj Adhikari, Donghui Jeong, Sarah Shandera
We develop and study the position-dependent bispectrum. It is a generalization of the recently proposed position-dependent power spectrum method of measuring the squeezed-limit bis…
Large-scale anomalies in the cosmic microwave background as signatures of non-Gaussianity
Saroj Adhikari, Sarah Shandera, Adrienne L. Erickcek
We derive a general expression for the probability of observing deviations from statistical isotropy in the cosmic microwave background (CMB) if the primordial fluctuations are non…
Local variance asymmetries in Planck temperature anisotropy maps
Saroj Adhikari
Recently, it was shown that local variance maps of temperature anisotropy are simple and useful tools for the study of large scale hemispherical power asymmetry. This was done by s…
Weighing the Giants IV: Cosmology and Neutrino Mass
Adam B. Mantz, Anja von der Linden, Steven W. Allen +14
We employ robust weak gravitational lensing measurements to improve cosmological constraints from measurements of the galaxy cluster mass function and its evolution, using X-ray se…
Higher moments of primordial non-Gaussianity and N-body simulations
Saroj Adhikari, Sarah Shandera, Neal Dalal
We perform cosmological N-body simulations with non-Gaussian initial conditions generated from two independent fields. The dominant contribution to the perturbations comes from a p…