Science definition of photosphere9/9/2023 ![]() ![]() very close to their parent star, in highly eccentric orbits, or around binary systems, in a word very different from planets in our solar system. We have found many planets which we call exotic, i.e. Planets may form and orbit around stars of almost every kind. In this context, it is not obvious whether a planetary system like our own solar system is common or unusual in the Galaxy. The recent discoveries of nearly a thousand of extrasolar planetary systems have opened up a number of new questions about their properties, physical conditions along with a rethinking of the concepts of habitability and life. Sub-commission B6/E4 deals with Exoplanets detection, characterization and modelling. Michael Ireland (Australia), 2022 – 2026* Top Sub-Commission B6/E4: Exoplanets Detection, Characterization and Modelling (2) Observational and theoretical study of the subsequent phenomena in the inner heliosphere and of the processes governing its structure, such as fast and slow solar wind streams, interplanetary coronal mass ejections and shock waves, solar energetic particles, corotating interaction regions including their space weather effects. (1) Observational and theoretical study of the phenomena of the quiet and active sun in the photosphere, chromosphere, and corona that relate to energy release in form of coronal heating, solar wind acceleration, energetic particle generation, flares and coronal mass ejections. Olga Khabarova, Chair, Sub-Commission D2/E3 Sub-Commission E1: Galactic and Extragalactic Astrophysics (National Institute of Astrophysics – INAF, Italy), executive summary. “ A Roadmap for Astronomy Missions in the Coming Decades” (published in ASR, 50, n☁, July 2012), prepared by a group of scientists under the leadership of Dr P. The data consist of high energy particles and radiation from the entire electromagnetic spectrum. IDEA Initiative Task Group (IITG): Mateja Dumbovic (Croatia), 2022 – 2026Ĭommission E deals with obtaining, sharing and analyzing data taken from space-borne platforms that are associated with the study of stars, galaxies and the universe at large. Panel on Capacity Building (PCB): Dipankar Bhattacharya (India), 2022 – 2026 Intercommission/Panel/Task Group Liaisons: Tomaso Belloni (Italy), 2021 – 2024 (tomaso.belloni – at – )īrigitte Schmieder (France), 2022 – 2026* ![]()
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