5 papers
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.…