The trans-Neptunian region: surveys, populations and dynamics
The region beyond Neptune holds leftovers of planet formation, and its orbital structure is a record of how the giant planets migrated. This collection goes from the systematic surveys that built the modern census (Deep Ecliptic Survey, CFEPS, OSSOS, the Dark Energy Survey search) through dynamical classification of thousands of objects and population estimates for Neptune's resonances, to resonance sticking, the scattered disk, the coupling between Kozai (ZLK) dynamics and mean-motion resonances, and the distant clustered orbits. It ends with what the next surveys (DEEP, CLASSY, LSST) are designed to answer. Terms: * TNO: trans-Neptunian object * MMR: mean-motion resonance * ZLK(R): von Zeipel-Lidov-Kozai (resonance) * DES: two different projects share this acronym here, the Deep Ecliptic Survey (2002, 2005) and the Dark Energy Survey (2022)