51 citations · 100 across the 5 of their papers we have counts for
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CMB anisotropy power spectrum using linear combinations of WMAP maps
Rajib Saha, Simon Prunet, Pankaj Jain +1
In recent years the goal of estimating different cosmological parameters precisely has set new challenges in the effort to accurately measure the angular power spectrum of CMB. Thi…
Statistical isotropy of CMB anisotropy from WMAP
Tarun Souradeep, Amir Hajian
The statistical expectation values of the temperature fluctuations of cosmic microwave background (CMB) are assumed to be preserved under rotations of the sky. We investigate the s…
The Cosmic Microwave Background Bipolar Power Spectrum: Basic Formalism and Applications
Amir Hajian, Tarun Souradeep
We study the statistical isotropy (SI) of temperature fluctuations of the CMB as distinct from Gaussianity. We present a detailed formalism of the bipolar power spectrum (BiPS) whi…
CMB power spectrum estimation using noncircular beams
Sanjit Mitra, Anand S. Sengupta, Tarun Souradeep
The measurements of the angular power spectrum of the Cosmic Microwave Background (CMB) anisotropy has proved crucial to the emergence of cosmology as a precision science in recent…
Statistical Isotropy of CMB and Cosmic Topology
Amir Hajian, Tarun Souradeep
The breakdown of statistical homogeneity and isotropy of cosmic perturbations is a generic feature of ultra large scale structure of the cosmos, in particular, of non trivial cosmi…
Probing Cosmic topology using CMB anisotropy
Tarun Souradeep, Dmitry Pogosyan, J. Richard Bond
The measurements of CMB anisotropy have opened up a window for probing the global topology of the universe on length scales comparable to and beyond the Hubble radius. We have deve…