Internal Heating of Old Neutron Stars: Contrasting Different Mechanisms

  title={Internal Heating of Old Neutron Stars: Contrasting Different Mechanisms},
  author={Denis Gonz{\'a}lez and Andreas Reisenegger and Rodrigo Fern{\'a}ndez},
  journal={arXiv: High Energy Astrophysical Phenomena},
The thermal emission detected from the millisecond pulsar J0437‐4715 is not explained by standard cooling models of neutron stars without a heating mechanism. We investigated three heating mechanisms controlled by the rotational braking of the pulsar: breaking of the solid crust, superfluid vortex creep, and non‐equilibrium reactions (“rotochemical heating”). We find that the crust cracking mechanism does not produce detectable heating. Given the dependence of the heating mechanisms on spin… Expand

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arXiv:0912.256 4v1, submitted to A&A
  • 2009