2 papers
astro-ph.CO2026
Are Dynamical Dark-Energy Cosmologies Old Enough?
Agripino Sousa-Neto, Susana J. Landau, Jailson Alcaniz
Recent analysis combining baryon acoustic oscillation measurements with cosmic microwave background and Type Ia supernova data show an apparent preference for a time-dependent dark…
astro-ph.CO2026
Effective Neutrino Mass and Apparent Phantom Crossing
Gabriel Rodrigues, Jamerson Rodrigues, Simony Santos da Costa +1
Recent cosmological constraints on the sum of neutrino masses have reached, and in some analyses fallen below, the minimum value implied by the normal mass ordering, suggesting a p…