An Overview of Exocomets
Daniela Iglesias, Isabel Rebollido, Azib Norazman, Colin Snodgrass, Darryl Z. Seligman, Siyi Xu, H. Jens Hoeijmakers, Matthew Kenworthy, Alain Lecavelier des Etangs, Michele Bannister, Bin Yang
TL;DR
This paper provides a comprehensive overview of exocomets, discussing their definitions, detection methods, and current candidate systems around various types of stars, highlighting recent observational advances.
Contribution
It offers a detailed comparison of exocomets with Solar System comets and interstellar objects, and compiles a census of all known exocomet candidates to date.
Findings
Exocomets are detected around main-sequence stars and white dwarfs.
Different observational techniques reveal exocometary bodies and material.
A comprehensive list of exocomet candidates is provided.
Abstract
We give a general overview of what the scientific community refers to as "exocomets". The general definition of exocomets, as presented in this work, is discussed and compared with Solar System comets and interstellar objects, addressing their detection around main-sequence stars as well as orbiting white dwarfs. We introduce the different types of exocomet observations, highlighting the difference between exocometary 'bodies' and exocometary 'material'. We provide a census of all exocometary system candidates detected so far, both via spectroscopy and photometry, including detections around white dwarfs.
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Taxonomy
TopicsAstro and Planetary Science · Stellar, planetary, and galactic studies · Astronomy and Astrophysical Research