[main] refinement_levels = 2 order = 3 include_external_domain = false r_core = 1.5 r_star = 5.0 flattening = 0.08 r_infinity = 6.0 r_instability = 1e-14 core_steepness = 1.0 surface_bdr_id = 1 inf_bdr_id = 2 core_id = 1 envelope_id = 2 vacuum_id = 3