Modeling the radio and hard X-ray emission of pulsar wind nebulae

The study of pulsar wind nebulae (PWNe) offer important insight into the properties of the central neutron star, the content of its pulsar wind, and progenitor supernova. Recent work has demonstrated that by modeling the broadband spectrum of a PWN it is possible to determine the magnetization and energy spectrum of particles in the pulsar wind. Of particular importance are the PWN's radio and hard X-ray spectrum, since they provide crucial information on the strength of the PWN's magnetic field and the lowest- and highest-energy particles in the PWN. In this talk, I will discuss the implications of improved measured of a PWN's radio and hard X-ray emission on our understanding of the physics in PWNe, in particular the spectral shape of particles accelerated at the pulsar wind termination shock.