Earth, Atmosphere & Environment Sciences
Title : | Study of electromagnetic and electrostatic plasma waves in planetary magnetosphere of Jupiter |
Area of research : | Earth, Atmosphere & Environment Sciences |
Principal Investigator : | Prof. R.S. Pandey, Amity University, Noida, Uttar Pradesh |
Timeline Start Year : | 2023 |
Timeline End Year : | 2026 |
Contact info : | rspandey@amity.edu |
Equipments : | Desktop and Printer |
Details
Executive Summary : | Spacecraft instruments have provided valuable data on the magnetosphere of Jupiter, the largest planet in the Solar System. Jupiter's magnetosphere presents an unusual configuration with unique characteristics, including upstream ion events, bow shock, magnetospheric boundary structures, an intense inner region of hard particles radiation, and a soft magneto-tail plasma sheet. Jupiter has the strongest magnetic field and the most powerful magnetosphere, continuing beyond Saturn's orbit. The distance between the planet center and the sub solar point of the magnetopause R1 is about 100 planet radii on average for Jupiter, which is about 10 terrestrial radii for Earth. Jupiter's polar auroras and radio emissions are stronger than for other planets. The dipole magnetic moment points northward, opposite to Earth's case, and the dipole tilt from the rotation axis is approximately 9.6◦. The Jupiter magnetic field is likely due to a hydromagnetic dynamo, with the nonzero tilt of the dipole from the rotation axis playing a crucial role in the dynamo process. The Jupiter magnetosphere is distinct from Earth's magnetosphere due to its larger size and strength, as well as the availability of an intense source of magnetospheric plasma, Jupiter's moon Io. Io supplies a neutral gas to the Jupiter magnetosphere, abundant in sulphur, sulphur dioxide, oxygen, and sodium. The plasma produced by Io is mainly composed of hydrogen, oxygen, and sulphur ions and forms a dynamically unstable plasma torus near its orbit. |
Co-PI: | Dr. Ram Tyagi, Amity University, Noida, Uttar Pradesh-201313 |
Total Budget (INR): | 20,57,240 |
Organizations involved