  Leptonic CP violation is one of the most important topics in neutrino
physics. CP violation in the neutrino sector is strongly related to the nature
of neutrinos: whether they are Dirac or Majorana particles. In
\cite{Popov:2021icg} we have shown that for Majorana neutrinos arance of
nonzero Majorana CP-violating phases combined with strong magnetic field during
supernova core-collaple can induce new resonances in neutrino oscillations, for
example in $\nu_e \to \bar{\nu}_\tau$ channel. In this contribution we further
study new resonances in Majorana neutrino oscillations, in particular energy
dependence of amplitudes of these resonances. Our findings suggest a potential
astrophysical setup for studying the nature of neutrino masses and leptonic CP
violation and may be important for future neutrino experiments, such as JUNO,
Hyper-Kamiokande and DUNE.

High Energy Physics - Phenomenology