Anjan A. Sen

activity

20022026

most citedThe Revival of the Unified Dark Energy-Dark Matter Model ?

252 citations · 446 across the 9 of their papers we have counts for

collaborators

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2 papers · 1 filter

astro-ph.CO2026

Early- and Late-Time Modifications to $Λ$ CDM: Implications for the Hubble Tension

Rahul Dhyani, Purba Mukherjee, Arindam Chatterjee +1

We investigate an extension of $Λ$ CDM in which a fraction of cold Dark Matter (DM) decays into invisible dark radiation (DR) around the radiation-matter equality epoch, together wi…

astro-ph.CO2026

Beyond $Λ$ CDM with a Logistic RG-like Flow of the Low Redshift Cosmic Evolution

Shibendu Gupta Choudhury, Anjan A Sen

Recent observations hint at possible late-time deviations from $Λ$ CDM. We introduce a minimal phenomenological framework in which the total equation of state $w_{T} (z)$ follows…

Early- and Late-Time Modifications to ΛCDM: Implications for the Hubble Tension

Beyond ΛCDM with a Logistic RG-like Flow of the Low Redshift Cosmic Evolution

Early- and Late-Time Modifications to $Λ$ CDM: Implications for the Hubble Tension

Beyond $Λ$ CDM with a Logistic RG-like Flow of the Low Redshift Cosmic Evolution