Magnetospheres of Magnetars

Andrei M Beloborodov

Columbia University


Properties of magnetar magnetospheres will be reviewed. Then a model of their persistent nonthermal emission will be presented, which relates emission to the electric circuit in a twisted magnetosphere. A self-consistent model of plasma dynamics in the circuit allows one to answer basic questions: What are the magnetospheric particles? What are their temperature and density? What is the dissipation rate in the magnetosphere? How and where is the observed nonthermal emission produced?

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