Planet-Disk Interactions and Orbital Evolution

Book chapter (2023)

Authors

S. Paardekooper Queen Mary University of London
Ruobing Dong University of Victoria
Paul Duffell Purdue University
Jeffrey Fung Clemson University
Frederic Masset Universidad Nacional Autónoma de México
Gordon Ogilvie University of Cambridge
Hidekazu Tanaka Tohoku University
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Published Date

2023

Language

English

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Abstract

Planet-disk interactions, where an embedded massive body interacts gravitationally with the protoplanetary disk it was formed in, can play an important role in reshaping both the disk and the orbit of the planet. Spiral density waves are launched into the disk by the planet, which, if they are strong enough, can lead to the formation of a gap. Both effects are observable with current instruments. The back-reaction of perturbations induced in the disk, both wave-like and non-wavelike, is a change in orbital elements of the planet. The efficiency of orbital migration is a long-standing problem in planet formation theory. We discuss recent progress in planet-disk interactions for different planet masses and disk parameters, in particular the level of turbulence, and progress in modeling observational signatures of embedded planets