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From disks to planets: observational insights

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Andrea Isella
Andrea Isella*
Affiliation:
Physics & Astronomy Department, Rice University, MS-108, 6100 Main St., Houston, TX, USA, 77005 email: isella@rice.edu
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Abstract

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The unprecedented sensitivity and imaging capabilities offered by the Atacama Large Millimeter Array (ALMA) are transforming our understanding of protoplanetary disks and, hence, of planet formation. In this brief chapter, I first discuss the main results and caveats related to the measurement of the mass of solids in protoplanetary disks based on millimeter-wave observations. I then present a recent analysis of the ALMA observations of the HL Tau disk, which suggests that the observed circular rings might be due to the tidal interaction between Saturn mass planets and the circumstellar material. In the conclusion, I argue that the existing observations of protoplanetary disks suggest that planets might form very early on, perhaps at the same time as the formation of the disk itself.

Keywords

Protoplanetary disksPlanets and satellites: formationSubmillimeter: planetary systemsstars: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , pp. 107 - 113
Copyright
Copyright © International Astronomical Union 2016 

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