Abstract

Invited Talk - Splinter ALMA2040

Wednesday, 09 September 2026, 17:15   (MW-2235)

Planet formation on solar system scales

Anna Penzlin
LMU

Jupiter played a vital roll in shaping the solar system. The gas giant's interaction with the gas and dust flow, the planetesimals and the forming planetary system are the corner stone to understand the present-day solar system. Finding such nascent gas giants is our best opportunity to unravel these crucial steps in the formation of planetary systems. ALMA has revolutionised our understanding of the planet forming environment and led to the first clear, confirmed detections of forming gas giants in the PDS70 and WISPIT 2 system at 20 to 50 AU. However, the our own solarsystem and the majority of observed planetary system are concentrated in a region much smaller that is currently out of reach for the present-day (sub)mm observation. With the possible ALMA2024 improvement on sensitivity and angular resolution, we can zoom-in to detect Exo-Jupiters at 5AU around Sun-like stars within 150 pc and kinematically characterise its interactions with its environment. These advancements in observational power, allow us access to understand the planet-formation not just in our own solar system but to observe typical ongoing planet formation for the first time.