4 papers
CMB Hemispherical Power Asymmetry from Early Phase of Inflation
Akash Gandhi, Mohit Panwar, Pankaj Jain
We investigate the hemispherical power asymmetry observed in the CMBR by attributing it to an early inhomogeneous phase of cosmic expansion. Unlike the conventional assumption of a…
Extracting local velocity from cosmic dipole using simulations
Mohit Panwar, Akash Gandhi, Pankaj Jain
Our velocity with respect to the cosmic frame of rest leads to a dipole in the number count distribution of galaxies. The dipole depends on the source spectrum, which is usually as…
Color Dependence of Dipole in CatWISE2020 Data
Mohit Panwar, Pankaj Jain, Amitesh Omar
The signal of dipole anisotropy in quasar number counts is studied using the CatWISE2020 catalog in various color bins. It is found that the dipole signal differs significantly in…
Probing Cosmological Principle using the spectral index of quasar flux distribution
Mohit Panwar, Pankaj Jain
We study the dipole signal in the spectral index (x) of the differential number counts using quasars in the CatWISE2020 catalog of infrared sources. The index is extracted by using…