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Dust Trapping and Coagulation in Protoplanetary Disks

Published online by Cambridge University Press:  13 January 2020

Ya-Ping Li Open the ORCID record for Ya-Ping Li [Opens in a new window]
Ya-Ping Li*
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China email: [email protected]
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Abstract

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In this work, we carry out two-fluid (gas+dust) hydrodynamical simulations on a large family of models in order to study the dust coagulation and the dust-gas dynamical processes in protoplanetary disks. Our theoretical effort is guided by the observational results of disks in nearby star forming regions at sub-millimeter and millimeter (mm) wavelengths. By a systematic comparison with the continuum emission at several mm bands from ALMA observations, we find that ringed structures are predicated in the unresolved faint disks for those with mm spectral indexes as low as about 2.0. Our parameter exploration can also be used to constrain the fragmentation velocity, one key parameter of the dust coagulation model, and some other disk parameters.

Keywords

planetary systems: protoplanetary disksplanets: ringssubmillimeter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 355 - 357
Copyright
© International Astronomical Union 2020 

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