3 papers
astro-ph.CO2026
Reionization, UV Luminosity and 21cm Sensitivity to Primordial Magnetic Fields: Impact of Energy Losses
Gaétan Facchinetti, Alexander Korochkin, Laura Lopez-Honorez +1
Magnetic fields with field strengths between G and a few Nanogauss are expected to exist today in the intergalactic medium (IGM). Their origin is unknown, but may be of…
astro-ph.CO2025
21 cm Cosmology Sensitivity to Small-Scale Structure: Warm vs Neutrino-Interacting Dark Matter
Virgile Dandoy, Christian Döring, Gaétan Facchinetti +2
The cm signal originating from Cosmic Dawn to the Epoch of Reionisation is highly sensitive to the processes governing star formation in the early universe as well as new phy…
astro-ph.CO2025
Neural network emulation of reionization to constrain new physics with early- and late-time probes
Gaétan Facchinetti
The optical depth to reionization, a key parameter of the CDM model, can be computed within astrophysical frameworks for star formation by modeling the evolution of the interga…