activity
19922026
most citedPlanck 2015 results. IX. Diffuse component separation: CMB maps

276 citations · 3.9k across the 123 of their papers we have counts for

collaborators

124 papers

astro-ph.CO2026★ 1 cited

Probing beyond the Cosmic Horizon

Tarun Souradeep

There are reasons to believe that the region of uniform curvature that we observe within our horizon is perhaps a tiny patch, much smaller than the length scales of inhomogeneity a…

astro-ph.CO2026

The Primordial power spectrum from the largest to smallest CMB scales

Debabrata Chandra, Dhiraj Kumar Hazra, Arman Shafieloo +1

We reconstruct the primordial power spectrum (PPS) across the full range of cosmological scales accessible to Cosmic Microwave Background (CMB) observations. Using the Modified Ric…

astro-ph.CO2026

Understanding the non-Gaussian nature of Galactic foreground emissions towards small scales

Fazlu Rahman, Pravabati Chingangbam, Kevin Huffenberger +4

We present a unified, multi-scale study of non-Gaussianity of Galactic foreground emissions using Minkowski Functionals and generalized skewness-kurtosis parameters, focusing on th…

astro-ph.CO2026

Capturing statistical isotropy violation with rotational averages

Vaishali R, Dipayan Mukherjee, Tarun Souradeep +1

Recent high precision cosmological observations have revealed several anomalies in the Cosmic Microwave Background (CMB), indicating possible violations of statistical isotropy (nS…

astro-ph.CO2026

Updated Constraints on Infrared Cutoff Models and Implications for Large-Scale CMB Anomalies

Ujjwal Upadhyay, Yashi Tiwari, Tarun Souradeep

The nearly scale-invariant primordial power spectrum provides the standard initial conditions for cosmological perturbations. However, the largest scales remain only weakly constra…

astro-ph.CO2024

Statistical Isotropy Violations in CMB Temperature Anisotropy: Analysis Using Minimal Bipolar Spherical Harmonics

Dipanshu, Akashdeep Karan, Tarun Souradeep

In this work, we present a follow-up to our previous work where the concept of minimal Bipolar spherical harmonics (mBipoSH) functions was introduced as a natural basis for studyin…