Extremely Large Enhancements of the Jovian Decameter Radio Bursts Caused by the Magnetosphere-Plasmasphere Passages of Shoemaker-Levy 9 Comet Fragments-Evolution of Jovian Decametric Radiation Feature into the State of Intense Decametric Pulsar

Observation results of the Jovian decameter wave emissions in the period of the passages of fragments of Shoemaker-Levy 9 comet through the Jovian magnetosphere indicated extremely large enhancements of Jovian decameter wave radiations (JDR), being caused by dust-plasma clouds moving across the Jovian magnetic fields. The total emission power of the decameter wave radiations was increased to the level of approximately 10 times larger than the regular maximum level of the emissions of the Jovian decameter radiation in a corresponding frequency range. The Jovian decameter wave radiations have continuously been emitted for six months, long after the passage of the fragments of Shoemaker-Levy 9 comet; the evidence suggests that the Jovian plasma environment has been completely changed by the remnants of dust clouds that were left behind the Shoemaker-Levy 9 comet fragments.