MG11 
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Magnetars: Internal heating and energy budget

We develop models of magnetars as cooling neutron stars with internal heating in a spherical internal layer. We show that to explain high observable thermal luminosities of magnetars and be consistent with the energy budget of neutron stars the heat source should be located in the outer neutron star crust and should have the heat intensity about 1e20 erg/cm^3/s. We explore the sensitivity of this conclusion to the effects of neutrino emission and thermal conduction in the magnetar's crust.