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Gravitational Instabilities in Circumstellar Disks [PDF]

Annual Review of Astronomy and Astrophysics, 2016
ARAA Chapter to be published in Fall 2016.
Kaitlin M Kratter, Giuseppe Lodato
exaly   +3 more sources

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A Circumstellar Disk Around β Pictoris

Science, 1984
A circumstellar disk has been observed optically around the fourth-magnitude star β Pictoris. First detected in the infrared by the Infrared Astronomy Satellite last year, the disk is seen to extend to more than 400 astronomical units from the star, or more than twice the distance measured in the infrared by the Infrared Astronomy Satellite.
B A, Smith, R J, Terrile
openaire   +2 more sources

Dusty Circumstellar Disks

Annual Review of Astronomy and Astrophysics, 2001
▪ Abstract  Dusty circumstellar disks in orbit around main-sequence stars were discovered in 1983 by the infrared astronomical satellite. It was the first time material that was not another star had been seen in orbit around a main-sequence star other than our Sun.
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The theory of circumstellar accretion disks

AIP Conference Proceedings, 1997
Recent theoretical advances in our understanding of the dynamics of circumstellar accretion disks are reviewed. Of particular importance are developments regarding angular momentum transport processes in disks. It has recently been shown through direct numerical simulation that vertical convection results in inward transport, and thus is unlikely to ...
James M Stone, Stone James M
exaly   +2 more sources

Circumstellar and circumplanetary disks

2000
This thesis studies disks in three astrophysical contexts: (1) protoplanetary disks; (2) the Edgeworth-Kuiper Belt; and (3) planetary rings. We derive hydrostatic, radiative equilibrium models of passive protoplanetary disks surrounding T Tauri and Herbig Ae/Be stars. Each disk is encased by an optically thin layer of superheated dust grains.
openaire   +1 more source

Ripping up a circumstellar disk

Science, 2020
Stellar Astrophysics During the process of star formation, a disk of gas and dust forms around the young star, controlling the accretion of more material. Once the star has formed, any leftover material in this circumstellar disk can form planets. If a binary or triple star forms at the center of the disk, theoretical models predict that tidal torques ...
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Circumstellar disks in the Trapezium Cluster

1996
We discuss the recent discovery and study of circumstellar disks in the Trapezium Cluster via two techniques. First we discuss the population of objects sometimes called ‘proplyds’, as revealed by ionizing radiation from the central massive OB stars of the Trapezium, and the fraction of these ionized objects that are associated with stars.
Mark McCaughrean, John Rayner, Hans Zinnecker, John Stauffer   +3 more
openaire   +1 more source

Observations of Circumstellar Disks

2007
IRAS observations first showed that a sizable fraction of the nearby stars are (still) surrounded by dust disks (Cheng et al. [3]), the most prominent prototypes of this class of dusty stars being Vega, β Pic, and α PsA. Such dust or debris disks have generated particular interest in the framework of young earth-like planetary systems.
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Observations of circumstellar disks and infall

AIP Conference Proceedings, 1997
This paper presents an overview of the current status of millimeter and submillimeter wavelength observations of circumstellar disk and infall associated with young stars. Particular attention is paid to the progress and promise of high resolution interferometer observations.
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Circumstellar disks

EAS Publications Series, 2014
A. Meilland, Ph. Stee
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