Loops and spurs: the angular power spectrum of the Galactic synchrotron background

We present a new model of the diffuse Galactic synchrotron radiation, concentrating on its angular anisotropies. While previous studies have focussed on either the variation of the emissivity on large (∼ kpc) scales, or on fluctuations due to MHD turbulence in the interstellar medium, we unify these...