RAMSESFieldInfo.
known_other_fields
= (('Density', ('code_density', ['density'], None)), ('x-velocity', ('code_velocity', ['velocity_x'], None)), ('y-velocity', ('code_velocity', ['velocity_y'], None)), ('z-velocity', ('code_velocity', ['velocity_z'], None)), ('Pressure', ('code_pressure', ['pressure'], None)), ('Metallicity', ('', ['metallicity'], None)))¶