2 papers
astro-ph.CO2026
Investigating the Tension and Expansion-History Mismatch with Diverse Dark Energy Parametrization Frameworks
Upala Mukhopadhyay, Purba Mukherjee, Alexandre Tkatchenko
The CDM model successfully explains a wide range of cosmological observations; however, persistent discrepancies most notably the tension between early and late time meas…
astro-ph.CO2025
Inferring dark energy properties from the scale factor parametrisation
Upala Mukhopadhyay, Sandeep Haridasu, Anjan A Sen +1
We propose and implement a novel test to assess deviations from well-established concordance CDM cosmology while inferring dark energy properties. In contrast to the commonly i…