352 citations · 1.1k across the 43 of their papers we have counts for
4 papers · 1 filter
Estimating SI violation in CMB due to non-circular beam and complex scan in minutes
Nidhi Pant, Santanu Das, Aditya Rotti +2
Mild, unavoidable deviations from circular-symmetry of instrumental beams along with scan strategy can give rise to measurable Statistical Isotropy (SI) violation in Cosmic Microwa…
Recovering hidden signals of statistical anisotropy from a masked or partial CMB sky
Pavan K. Aluri, Nidhi Pant, Aditya Rotti +1
Any isotropy violating phenomena on cosmic microwave background (CMB) induces off-diagonal correlations in the two-point function. These correlations themselves can be used to esti…
Weak lensing in non-statistically isotropic universes
Moumita Aich, Aditya Rotti, Tarun Souradeep
The Bipolar Spherical Harmonics (BipoSH) form a natural basis to study the CMB two point correlation function in a non-statistically isotropic (non-SI) universe. The coefficients o…
A novel approach to reconstructing signals of isotropy violation from a masked CMB sky
Pavan K. Aluri, Nidhi Pant, Aditya Rotti +1
Statistical isotropy (SI) is one of the fundamental assumptions made in cosmological model building. This assumption is now being rigorously tested using the almost full sky measur…