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'Debris disks' are collections of small bodies around stars, such as the Asteroid Belt and Kuiper Belt in our Solar System. These disks are composed of objects smaller than planets, including asteroids, comets, dust, and dwarf planets. We…

Earth and Planetary Astrophysics · Physics 2024-03-19 Tim D. Pearce

Debris disk is a catch-all term that can be used to refer to any component of a planetary system which is not an actual planet. In the Solar System this refers to the asteroids and comets in the Asteroid and Kuiper belts as well as the dust…

Earth and Planetary Astrophysics · Physics 2021-12-15 Mark C. Wyatt

Extrasolar debris disks are the dust disks found around nearby main sequence stars arising from the break-up of asteroids and comets orbiting the stars. Far-IR surveys (e.g., with Herschel) showed that ~20% of stars host detectable dust…

Earth and Planetary Astrophysics · Physics 2020-01-22 Mark C. Wyatt

Debris disks are optically thin, almost gas-free dusty disks observed around a significant fraction of main-sequence stars older than about 10 Myr. Since the circumstellar dust is short-lived, the very existence of these disks is considered…

Earth and Planetary Astrophysics · Physics 2015-05-18 Alexander V. Krivov

Debris disks are tenuous, dust-dominated disks commonly observed around stars over a wide range of ages. Those around main sequence stars are analogous to the Solar System's Kuiper Belt and Zodiacal light. The dust in debris disks is…

Earth and Planetary Astrophysics · Physics 2018-10-17 A. Meredith Hughes , Gaspard Duchene , Brenda Matthews

Debris disks are exoplanetary systems containing planets, minor bodies (such as asteroids and comets) and debris dust. Unseen planets are presumed to perturb the minor bodies into crossing orbits, generating small dust grains that are…

Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on…

Earth and Planetary Astrophysics · Physics 2018-12-05 Mark C. Wyatt

Main sequence stars, like the Sun, are often found to be orbited by circumstellar material that can be categorized into two groups, planets and debris. The latter is made up of asteroids and comets, as well as the dust and gas derived from…

Solar and Stellar Astrophysics · Physics 2015-06-18 Brenda C. Matthews , Alexander V. Krivov , Mark C. Wyatt , Geoff Bryden , Carlos Eiroa

We discuss the current knowledge of the Solar system, focusing on bodies in the outer regions, on the information they provide concerning Solar system formation, and on the possible relationships that may exist between our system and the…

Astrophysics · Physics 2015-05-13 David Jewitt , Amaya Moro-Martín , Pedro Lacerda

Observations of circumstellar disks provide a powerful tool for our understanding of planetary systems dynamics. Analogs to the Solar System asteroid belts, debris disks result from the collision of the remaining solid material of the…

The dust disks observed around mature stars are evidence that plantesimals are present in these systems on spatial scales that are similar to that of the asteroids and the KBOs in the Solar System. These dust disks (a.k.a. ``debris disks'')…

Astrophysics · Physics 2007-05-23 Amaya Moro-Martin , Mark C. Wyatt , Renu Malhotra , David E. Trilling

The study of the last stages of planet formation, also known as debris disks, is fundamental to place constrains on the formation of planetary sized bodies. Debris disks are composed of dust and occasionally small amounts of gas, both…

Instrumentation and Methods for Astrophysics · Physics 2025-10-01 Isabel Rebollido , Yasuhiro Hasegawa , Meredith MacGregor , Bin Ren , Mark Booth , Jonathan Marshall , Courtney Dressing , Patricia Luppe

The number of stars that are known to have debris disks is greater than that of stars known to harbour planets. These disks are detected because dust is created in the destruction of planetesimals in the disks much in the same way that dust…

Astrophysics · Physics 2008-07-09 M. C. Wyatt

Debris disks are evidence that stars harbor reservoirs of dust-producing plantesimals on spatial scales similar the solar system. Debris disks present a wide range of sizes and structural features and there is growing evidence that, in some…

Earth and Planetary Astrophysics · Physics 2015-05-14 Amaya Moro-Martin

"Debris disks" around young stars (analogues of the Kuiper Belt in our Solar System) show a variety of non-trivial structures attributed to planetary perturbations and used to constrain the properties of the planets. However, these analyses…

Earth and Planetary Astrophysics · Physics 2013-08-06 W. Lyra , M. Kuchner

Cold debris disks (T$<$200 K) are analogues to the dust in the Solar System's Kuiper belt--dust generated from the evaporation and collision of minor bodies perturbed by planets, our Sun, and the local interstellar medium. Scattered light…

Extensive photometric stellar surveys show that many main sequence stars show emission at infrared and longer wavelengths that is in excess of the stellar photosphere; this emission is thought to arise from circumstellar dust. The presence…

Earth and Planetary Astrophysics · Physics 2015-06-04 Amaya Moro-Martin

Debris disks or exo-Kuiper belts, detected through their thermal or scattered emission from their dusty components, are ubiquitous around main-sequence stars. Since dust grains are short-lived, their sustained presence is thought to require…

Earth and Planetary Astrophysics · Physics 2024-03-18 Antranik A. Sefilian

Debris disks are dusty, gas-poor disks around main sequence stars (Backman & Paresce 1993; Lagrange, Backman & Artymowicz 2000; Zuckerman 2001). Micron-sized dust grains are inferred to exist in these systems from measurements of their…

Astrophysics · Physics 2007-05-23 Christine H. Chen

The inner Solar System contains a cloud of small (1-100 micron) dust grains created when small bodies-asteroids, comets, and Kuiper belt objects-collide and outgas. This dust cloud, the zodiacal cloud probably has extrasolar analogs,…

Astrophysics · Physics 2007-07-10 M. Kuchner , C. Stark , O. Absil , J. -C. Augereau , P. Thebault
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