SSMD II: Proto Star Magnetic Fields Driving Nebular Rotation and Planet Formation

Shukla Solar Magneto Disk Theory-II (SSMD-II) extends the classical nebular model by incorporating magnetic and plasma interactions between the proto-Sun and surrounding protoplanetary material. Convective motions within the proto-Sun generate seed magnetic fields, which exert Lorentz torques on ionized dust grains, inducing disk rotation and aligning angular momentum. Ionized particles spiral inward to form inner rocky planets, while larger neutral grains remain in outer orbits, contributing to the formation of gas giants. SSMD-II thereby provides a unified framework combining gravitational, magnetic, and plasma dynamics to explain planetary formation, disk rotation, and inner–outer density variations. Mathematically, the theory demonstrates that the intrinsic magnetic field of the proto-Sun could spin the entire nebular disk, eliminating the need for a “pre-rotating nebula.” Thus, the magnetic field influencing the nebula originated from the proto-Sun itself, naturally driving disk formation and planetary evolution. Ultimately, SSMD-II identifies the magnetic field traditionally attributed to the nebula as the proto-Sun’s own intrinsic field, representing the theory’s core scientific advancement.