Diagnosing magnetars with transient cooling

  title={Diagnosing magnetars with transient cooling},
  author={Y. Lyubarsky and D. Eichler and C. Thompson},
  journal={The Astrophysical Journal},
Transient X-ray emission, with an approximate t-0.7 decay, was observed from SGR 1900+14 over 40 days following the giant flare of 1998 August 27. We calculate in detail the diffusion of heat to the surface of a neutron star through an intense 1014-1015 G magnetic field, following the release of magnetic energy in its outer layers. We show that the power-law index, the fraction of burst energy in the afterglow, and the return to persistent emission can all be understood if the star is composed… Expand

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