2 papers
astro-ph.CO2026
Redshift Dependence of Dipole in Pantheon+ Supernovae
M. H. Jalali-Kanafi, E. Ó Colgáin, S. Pourojaghi +1
We examine the dipole structure in the local cosmic expansion rate using the Pantheon+ compilation of Type Ia supernovae. We reconstruct directional maps of across the…
astro-ph.CO2026
How much has DESI dark energy evolved since DR1?
Eoin à Colgáin, Saeed Pourojaghi, M. M. Sheikh-Jabbari +1
DESI has reported a dynamical dark energy (DE) signal based on the CDM model that is in conflict with Hubble tension. Recalling that the combination of DESI DR1 BAO and DR…