Direct URCA process in neutron stars with strong magnetic fields | Zendy

L. B. Leinson | Zendy; A. Pérez | Zendy

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Direct URCA process in neutron stars with strong magnetic fields

Author(s) -

L. B. Leinson,

A. Pérez

Publication year - 1998

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/1998/09/020

Subject(s) - neutron star , physics , magnetic field , proton , pulsar , astrophysics , electron , degenerate energy levels , stars , magnetar , neutron , nuclear physics , field (mathematics) , supernova , white dwarf , quantum mechanics , mathematics , pure mathematics

We calculate the emissivity for the direct URCA process in strongly magnetized, degenerate matter in neutron stars, under beta-equilibrium. We show that, if the magnetic field is large enough for protons and electrons to be confined to their ground Landau levels, the field-free threshold condition on proton concentration no longer holds, and direct URCA reactions are open for an arbitrary proton concentration. Direct URCA process leads to an early phase of fast neutron star cooling. This circumstance allows us to constrain the initial magnetic field inside observed pulsars

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