6 papers
Planets orbiting Quark Nova compact remnants
P. Keränen, R. Ouyed
We explore planet formation in the Quark Nova scenario. If a millisecond pulsar explodes as a Quark Nova, a protoplanetary disk can be formed out of the metal rich fall-back materi…
Effects of periodic matter in kaon regeneration
Evgeny Akhmedov, Augusto Barroso, Petteri Keränen
We study the effects of periodic matter in kaon regeneration, motivated by the possibility of parametric resonance in neutrino oscillations. The large imaginary parts of the forwar…
Neutrino mixing scenarios and AGN
Luis Bento, Petteri Keränen, Jukka Maalampi
Active galactic nuclei (AGN) have been suggested to be sources of very high energy neutrinos. We consider the possibility of using AGN neutrinos to test neutrino mixings. From the…
Testing neutrino instability with active galactic nuclei
P. Keranen, J. Maalampi, J. T. Peltoniemi
Active galactic nuclei and gamma ray bursts at cosmological distances are sources of high-energy electron and muon neutrinos and provide a unique test bench for neutrino instabilit…
Testing neutrino magnetic moments with AGNs
Kari Enqvist, Petteri Keränen, Jukka Maalampi
We propose to test the magnetic transition moments of Majorana neutrinos by comparing the fluxes of different flavours of neutrinos coming from active galactic nuclei (AGN). We sho…
Cosmological abundances of right-handed neutrinos
Kari Enqvist, Petteri Keränen, Jukka Maalampi +1
We study the equilibration of the right-helicity states of light Dirac neutrinos in the early universe by solving the momentum dependent Boltzmann equations numerically. We show th…