Showing astro-ph.COShow all
2 papers · 1 filter
astro-ph.CO2026
-CDM: A Minimal Deformation of CDM with Scalar Field Reconstruction
Phichayoot Baisri, Nandan Roy, Prasanta Sahoo +2
Recent DESI BAO observations provide intriguing hints that dark energy may be dynamical in nature. To investigate deviations of the dark energy equation of state (EoS) from $w = -1…
astro-ph.CO2025
Is Phantom Barrier Crossing Inevitable? A Cosmographic Analysis
Nandan Roy, Soumya Chakrabarti
Recent findings from the Dark Energy Spectroscopic Instrument (DESI), analyzed together with supernova observations and CMB measurements, provide statistically significant indicati…