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Long and short gamma-ray bursts, and the pulsar kicks
Alexander Kusenko, Dmitry V. Semikoz
One of the mysteries that surround gamma-ray bursts (GRB) is the origin of two classes of events: long and short GRB. The short GRB are similar to the first second of a long GRB. W…
Pulsar velocities and dark matter hint at a singlet neutrino
Alexander Kusenko
Two astrophysical puzzles, the origin of pulsar velocities and that of dark matter, may have a simultaneous explanation if there exists a sterile neutrino with a mass in the 1-20 k…
Signature neutrinos from ultrahigh-energy photons
Alexander Kusenko
At high red shift, the temperature of cosmic microwave background is sufficiently high for the ultrahigh-energy photons to pair-produce muons and pions through interactions with th…
Explanations of pulsar velocities
Alexander Kusenko
Several mechanisms based on neutrino oscillations can explain the observed motions of pulsars if the magnetic field in their interiors is of order 10^{14}-10^{15} G.
Resonant production of gamma rays in jolted cold neutron stars
Alexander Kusenko
Acoustic shock waves passing through colliding cold neutron stars can cause repetitive superconducting phase transitions in which the proton condensate relaxes to its equilibrium v…
The origin of pulsar velocities
Alexander Kusenko, Gino Segre
We have recently proposed an explanation for the birth velocities of pulsars as resulting from asymmetries due to neutrino oscillations in the cooling protoneutron star. A specific…