3 papers
astro-ph.CO2025
Impact of neutrino decays on the Cosmic Neutrino Background anisotropies
Nicola Terzaghi, Guillermo Franco Abellán, Fabian Zimmer +1
The anisotropies of the Cosmic Neutrino Background (CB) offer an ideal tool to test non-standard neutrino interactions, since they directly trace the perturbations in the neutr…
astro-ph.CO2025
Numerical treatment of annual modulation of relic neutrinos
Fabian Zimmer, Shin'ichiro Ando
We present a numerical treatment of the annual modulation of relic neutrinos due to the Sun's gravitational influence. Extending our previously developed N-1-body simulation framew…
astro-ph.CO2024
Effects of primordial fluctuations on relic neutrino simulations
Fabian Zimmer, Guillermo Franco Abellán, Shin'ichiro Ando
After decoupling, relic neutrinos traverse the evolving gravitational imhomogeneities along their trajectories. Once they turn non-relativistic, this results in a significant ampli…