Vigeesh G., Roth, M.

Halo formation in realistic 3D MHD simulations Thaler I., Vigeesh G., Roth, M. Since the first discovery of acoustic halos around magnetic regions by (Brown 1992, Toner and LaBonte 1993) many observational and theoretical studies have been undertaken to better understand this phenomena. The currently most accepted theory for its formation is the refraction of fast magnetic waves in the solar atmosphere, which then leads to the observed power access in doppler velocity maps compared to the quiet sun (Khomenko & Collados 2009, e.g. Rijs 2016). Along with that we want to investigate if we can confirm these results using non-linearized wave propagation through a sunspot stripe in fully convective 3D MHD simulations using the STAGGER code.