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Physics & Astronomy Colloquium – Aurora Martinez
February 14, 2018 @ 3:30 pm - 5:00 pm
Speaker: Dr. Aurora Martinez, ICIMAF, Havana, Cuba
Title: Magnetized strange quark stars anisotropy of emission of neutrinos, consequence
Abstract: We study the anisotropic neutrino emission from the core of neutron stars induced by the star’s magnetic field. We model the core as made out of a magnetized ideal gas of strange quark matter and implement the conditions for stellar equilibrium in this environment. The calculation is performed
without resorting to analytical simplifications and for temperature, density, and magnetic field values
corresponding to typical conditions for a neutron star’s evolution. The anisotropic neutrino emission
produces a rocket effect that contributes to the star’s kick velocity. We find that the computed values
for the kick velocity lie within the range of the observed values, reaching velocities of the order of
of 1000 km/s for magnetic fields between 10^ 15-10^ 18 G and radii of 20 to 5 km, respectively.
Speaker Biography: TBA