“…Numerical simulations by Linker et al (1998) and Combi et al (1998) illustrate the generation and propagation of the three MHD wave modes. Numerical simulations (e.g., Blöcker et al, 2016, 2018; Dols et al, 2016, 2008, 2012; Lipatov et al, 2010, 2013; Rubin et al, 2015; Saur et al, 1998, 1999, 2002, 2003; Šebek et al, 2019), reveal the relative importance of each plasma process (ionization, charge exchange, and collision), constrain the neutral atmosphere distribution radially and longitudinally, estimate the local plasma production and neutral loss, and explore the presence of an induced magnetic field either in Io's asthenosphere (Khurana et al, 2011) and/or core (Roth et al, 2017), or in a subsurface ocean for Europa (Schilling et al, 2007, 2008; Zimmer et al, 2000), plus test evidence for plumes (Arnold et al, 2019; Blöcker et al, 2016; Jia et al, 2018).…”