Surface-Bounded Exospheres and Interactions in the Inner Solar System

Anna Milillo has got a Laurea in Physics (1992) at “La Sapienza University in Rome. She has got a master and fellowships from the Italian Space Agency and from National Research Council in Rome between 1993 and 1999. Since 1999, she is a research scientist (senior scientists from 2019) at the Institute of Space Astrophysics and Planetology of INAF, previously called Institute of Interplanetary Space Physics (IFSI) of CNR. She has been Co-I of particle detection instruments for space missions of ESA to Earth, Mars and Venus and PI and Co-I on mission proposed to ESA and NASA for Earth, Moon, Jupiter’s moons, asteroids. Since 2001, her major field of investigation is Mercury’s environment and its interaction with the Sun and exosphere generation processes in the frame of BepiColombo ESA cornerstone and JAXA mission. She is coordinator of the Hermean Environment WG and BepiColombo InterDisciplinary Scientist (up to 2024), Deputy PI (up to 2024), national responsible of the BepiColombo/SERENA particle package and SERENA PI from October 2024, she is Co-I of the UV spectrometer PHEBUS and the X-rays and energetic particle detector SIXS. She is expert in environments of the bodies in the Solar System, investigating interactions between the ions, radiation and micrometeoroids with magnetospheres, upper atmospheres/exospheres/surfaces. She is author of about 130 refereed publications. Menelaos Sarantos is an expert in the development of ion and neutral particle transport models for surface-boundary exospheres of the solar system. He is interested in studying the relative importance of sources and sinks for planetary exospheres and in understanding their links to their surrounding plasma and meteoroid environment. He has combined models with spacecraft measurements to derive microscopic parameters of the gas-surface interaction from macroscopic properties of the exospheres of the Moon and Mercury. He was a science team member of the NASA MESSENGER mission and a Guest Investigator for the LADEE mission. He is a  a Guest Investigator on the Bepi Colombo mission. Ben Teolis is a physicist, experimentalist, planetary scientist, and expert in planetary atmospheres and magnetospheres, and surface radiation processes on the frozen worlds of the outer solar system.  As a Cassini spacecraft scientist for over a decade, he has published an extensive body of work on the Saturn system, its moons, and magnetosphere, and is today a Co-Investigator on Europa Clipper which will investigate surface and atmospheric composition, and search for possible plume-eruptions and habitable conditions. Dr. Teolis has authored/co-authored over 50 scientific papers covering an expansive set of subjects, ranging from spacecraft instrumentation, optics and thin films,chemical and radiation surface processing of icy planetary bodies, space plasma physics, and planetary exospheric structure and dynamics.    Go Murakami is an Assistant Professor working at Institute of Space and Astronautical Science (ISAS) in Japan Aerospace Exploration Agency (JAXA). He got his Ph.D by The University of Tokyo in 2011. Then he worked at JAXA/ISAS as a research fellow between 2011-2017 for developments and observations of Japanese ultraviolet space telescope Hisaki and the BepiColombo mission. In 2017 he got the current position at JAXA/ISAS and became the Project Scientist of the ESA-JAXA joint mission BepiColombo for Mercury Magnetospheric Orbiter: Mio. He is working on science management and observation planning of Mio. His science expertise is solar terrestrial plasma physics and planetary atmospheric science. He has developed ultraviolet spectroscopy and/or imaging instruments onboard Kaguya, Hisaki, and BepiColombo. Peter Wurz has a degree in electronic engineering (1980), a M.Sc. (1985), and a Ph.D. in Physics from Technical University of Vienna, Austria (1990). During his PhD he had research stays at Vanderbilt University, Nashville, USA and at Stanford Research Institute, Stanford, USA (Fulbright Scholarship). He has been a post-doctoral researcher at Argonne National Laboratory, USA. Since 1992 he is at the University of Bern. He is a Professor of physics and since 2015–2022 head of the Space Science and Planetology division, and since 2022 director of the Physics Institute. He has been Co-I and PI for many science instruments for space missions of ESA, NASA, ISRO, CNSA, Roscosmos, and JAXA investigating the Sun, Mercury, Venus, Earth, the Moon, Mars, Jupiter, the Galilean moons, comets, and the interstellar gas.

Editorial to “Surface-Bounded Exospheres and Interactions in the Inner Solar System”.- Particles and photons as drivers: Comparison between Moon and Mercury.- Surface Exospheric Interactions.- Meteoroids as one of the sources for exosphere formation on airless bodies in the inner solar system.- Volatiles and refractories in surface-bounded exospheres in the inner Solar System.- Comparative Na and K Mercury and Moon exospheres.- Water Group Exospheres and Surface Interactions on the Moon, Mercury, and Ceres.- The Exosphere as a Boundary: Origin and Evolution of Airless Bodies in the Inner Solar System and Beyond Including Planets with Silicate Atmospheres.- Future directions for the investigation of surface-bounded exospheres in the inner Solar.