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Disk observations

Sargent, Anneila I. (1996) Disk observations. In: Disks and Outflows Around Young Stars. Lecture Notes in Physics. No.465. Springer , Berlin, pp. 1-23. ISBN 978-3-540-61389-3.

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A wide variety of observations suggest that solar mass stars are surrounded by disks of gas and dust for much of their pre-main sequence lifetimes and even beyond. Here, techniques by which the small-scale circumstellar material can be detected are described and evidence for disks is briefly reviewed. Because of the general similarity between the disks around solar-mass stars and the nebula that surrounded the sun as the planets formed, disk properties may have strong bearing on our understanding of solar system evolution. Questions which must be addressed include: How frequently are disks found, and does the fraction vary with environment? What effect do companion stars have? How do disks evolve? Are low infrared fluxes necessarily indicative of disk clearing? Is there evidence of chemical evolution? How long do the disks persist? Are dissipation time-scales different for the gas and dust components? Observations addressing such problems will be summarized and discussed.

Item Type:Book Section
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URLURL TypeDescription ReadCube access
Sargent, Anneila I.0000-0002-4633-5098
Additional Information:© Springer-Verlag 1996.
Subject Keywords:Accretion Disk; Young Star; Tauri Star; Molecular Line; Circumstellar Disk
Series Name:Lecture Notes in Physics
Issue or Number:465
Record Number:CaltechAUTHORS:20210125-153052077
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107718
Deposited By: Tony Diaz
Deposited On:26 Jan 2021 18:55
Last Modified:16 Nov 2021 19:05

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