报告人：Jürgen Oberst（教授）

时间：2023.9.28 15:00-16:30

地点：测绘馆206会议室

报告人简介

   Prof. Jürgen Oberst received his Ph.D. from the University of Texas at Austin in 1989. He is Chair of Planetary Geodesy at the Technical University Berlin, involved in various camera- or Laser altimeter experiments on space missions, such as Lunar Reconnaissance Orbiter, Mars Express, BepiColombo, and JUICE. His interests include the modeling of the orbits, shape, rotation, and interior structures of planets and their satellites, asteroids and comets.

报告简介

       Bepi Colombo, a joint mission by ESA and JAXA, was launched in October 2018, and is currently on its way to Mercury. Being the innermost and smallest Solar System planet, Mercury is remarkable in many aspects. It is captured in a spin-orbit resonance, unique among the planets. Also, in spite of its small size, it features a massive iron-rich core, which supports an active magnetic field dynamo. Some polar craters, identified to be in permanent shadow, may host repositories of frozen volatiles. Hence, besides being an interesting science target on its own, Mercury may give insights into the formation and the workings of the other planets of the Solar System. Bepi Colombo is following up on the MESSENGER mission, which carried out a comprehensive orbital mapping of the planet until April 2015. This seminar will highlight the MESSENGER results and will introduce the current plans for Bepi Colombo, scheduled to arrive in Mercury orbit in December 2025. Prof. Jürgen Oberst has been member of the MESSENGER Science Team and is Co-Investigator for the Bepi Colombo Laser Altimeter (BELA), which will be operated by a team from German Aerospace Center (DLR) in Berlin, Germany.