Special cases : moons, rings, comets, trojans

TL;DR

This paper reviews the current efforts and future prospects in detecting moons, rings, comets, and trojans around exoplanets, which are crucial for understanding planetary formation and evolution.

Contribution

It provides a comprehensive overview of existing detection techniques and discusses potential future discoveries of non-planetary bodies in exoplanet systems.

Findings

Current detection methods are limited but improving.

Exoplanet systems likely host moons, rings, comets, and trojans.

Future observations may reveal new non-planetary bodies.

Abstract

Non-planetary bodies provide valuable insight into our current under- standing of planetary formation and evolution. Although these objects are challeng- ing to detect and characterize, the potential information to be drawn from them has motivated various searches through a number of techniques. Here, we briefly review the current status in the search of moons, rings, comets, and trojans in exoplanet systems and suggest what future discoveries may occur in the near future.