Space Sciences Seminar (41th)

Abstract
The plasma in space frequently has a unstable distribution in phase space. The solar wind’s interaction with planet magnetosphere, for example, can excite the plasma instability, and generate radio radiation. Therefore, planetary radio radiation is an important method of detecting exoplanets. The modulation period of planetary radio radiation could supply the crucial information of the planetary rotation period. Meanwhile, lightnings could excite whisle mode plasma waves and radio radiation. Jovian radiation belt and relativistic electrons produced by solar eruption are also important radio sources. Plasma waves are an important detection method of dynamics in planetary magnetosphere, which can reveal the electromagnetic coupling process between satellites, rings and planetary ionosphere, and they can also provide acceleration for charged particles in the magnetosphere through wave-particle interactions. This report will discuss the observational results of space radio and plasma fluctuations by spacecraft such as Voyager, Cassini and Juno.

Brief Introduction of the Reporter: Shengyi Ye, professor of Department of Earth and Space Sciences, Southern University of Science and Technology. He graduated from Tsinghua University in 2000 with a B.S. degree in Physics. In 2007, he graduated from Dartmouth College with a Ph.D. degree in space physics. Then he moved to the University of Iowa and joined the Department of Physics and Astronomy (first as a postdoc then research scientist since 2009), where he focused on data analysis and research work based on NASA Cassini and Juno spacecraft data and won the Cassini Mission Finale Scientific Achievement Award. Dr. Ye has published over 60 peer reviewed papers in international journals like Science, Geophysical Research Letters and Journal of Geophysical Research. He is an associate director of the planetary physics committee, Chinese Geophysics Union. He is the PI of a sub-topic of the Strategic Priority Research Program of Chinese Academy of Sciences, an NSFC research grant, and a Shenzhen stable support research project. Research field: space physics, planetary science, space probe.