3 papers
astro-ph.CO2026
Modified Cosmological Expansion and the JWST CMB Optical Depth Tension in Self Interaction Gravity
Subhadeep Mukherjee, Shashank Shekhar Pandey, A. S. Majumdar
Recent James Webb Space Telescope (JWST) observations favor an earlier and more efficient reionization history, leading to Thomson-scattering optical depths larger than those infer…
astro-ph.CO2026
Optical depth to reionization in a Universe with multiple inhomogeneous domains
Shashank Shekhar Pandey, Ruchika, Subhadeep Mukherjee +1
We study the optical depth to reionization in a cosmological setting that includes backreaction from matter inhomogeneities, using the Buchert averaging formalism. We construct a s…
astro-ph.CO2025
Constraining the Hubble parameter with the 21 cm brightness temperature signal in a universe with inhomogeneities
Subhadeep Mukherjee, Shashank Shekhar Pandey, A. S. Majumdar
We consider the 21\,cm brightness temperature as a probe of the Hubble tension in the framework of an inhomogeneous cosmological model. Employing Buchert's averaging formalism to s…