3 papers
astro-ph.CO2025
Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
Juan Ignacio Domínguez Feldman, Luis A. Pereyra, Frode K. Hansen +2
Recent papers have reported an unexplained cooling of CMB photons passing through galaxies in nearby cosmic filaments at the level. Here we show for the first time t…
astro-ph.CO2025
Evidence for a sign change of the ISW effect in the very recent universe? hot voids and cold overdensities at
Frode K. Hansen, Diego Garcia Lambas, Andrés N. Ruiz +2
We find a significant CMB temperature excess in the direction of local underdensities within . By contrast, less than of simulated CMB maps show a similarly signifi…
astro-ph.CO2024
A p<0.0001 detection of CMB cooling in galactic halos and its possible relation to dark matter
Frode K. Hansen, Diego Garcia Lambas, Heliana E. Luparello +2
We confirm at the level previous studies reporting Cosmic Microwave Background (CMB) temperatures being significantly lower around nearby spiral galaxies than expected in th…