5 papers
A reassessment of LVE method and hemispherical power asymmetry in CMB temperature data from Planck PR4
Sanjeev Sanyal, Sanjeet K. Patel, Pavan K. Aluri +1
We undertake a reassessment of one of the large angular scale anomalies observed in cosmic microwave background (CMB) temperature signal referred to as Hemispherical Power Asymmetr…
Probing foreground residuals in cleaned CMB temperature maps from Planck
Sanjeet K. Patel, Pavan K. Aluri, Pranati K. Rath +1
Maps of cosmic microwave background (CMB) are extracted from multi-frequency observations using a variety of cleaning procedures. However, in regions of strong microwave emission,…
Examining statistical isotropy of CMB low multipoles from Planck PR4 data
Pavan Kumar Aluri, Sanjeet Kumar Patel
Low multipoles () in cosmic microwave background (CMB) temperature anisotropies have shown some `peculiarities' when examined since the release of the full sky CMB maps, using a…
CMB low multipole alignments across WMAP and \emph{Planck} data releases
Sanjeet Kumar Patel, Pavan Kumar Aluri, John P. Ralston
The first observations of the cosmic microwave background (CMB) from NASA's \emph{Wilkinson Microwave Anisotropy Probe} (WMAP) led to finding `alignment' anomalies not expected fro…
Constraints on Bianchi-I type universe with SH0ES anchored Pantheon+ SNIa data
Anshul Verma, Sanjeet K. Patel, Pavan K. Aluri +2
We study the Bianchi-I cosmological model motivated by signals of statistical isotropy violation seen in cosmic microwave background (CMB) observations and others. To that end, we…