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Is the ring inside or outside the planet? : the effect of planet migration on dust rings
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Meru, Farzana, Rosotti, Giovanni P., Booth, Richard A., Nazari, Pooneh and Clarke, Cathie J. (2019) Is the ring inside or outside the planet? : the effect of planet migration on dust rings. Monthly Notices of the Royal Astronomical Society, 482 (3). pp. 3678-3695. doi:10.1093/mnras/sty2847 ISSN 1365-2966.
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Official URL: https://doi.org/10.1093/mnras/sty2847
Abstract
Planet migration in protoplanetary discs plays an important role in the longer term evolution of planetary systems, yet we currently have no direct observational test to determine if a planet is migrating in its gaseous disc. We explore the formation and evolution of dust rings – now commonly observed in protoplanetary discs by the Atacama Large Millimeter/submillimeter Array – in the presence of relatively low-mass (12–60 M⊕) migrating planets. Through 2D hydrodynamical simulations using gas and dust we find that the importance of perturbations in the pressure profile interior and exterior to the planet varies for different particle sizes. For small sizes, a dust enhancement occurs interior to the planet, whereas it is exterior to it for large particles. The transition between these two behaviours happens when the dust drift velocity is comparable to the planet migration velocity. We predict that an observational signature of a migrating planet consists of a significant outwards shift of an observed mid-plane dust ring as the wavelength is increased.
Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||
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Subjects: | Q Science > QB Astronomy | ||||||||||||||||||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||||||||||||||||||||
SWORD Depositor: | Library Publications Router | ||||||||||||||||||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Protoplanetary disks, Planetary rings | ||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||||||||||||||||||||||||||||||||||
Publisher: | Oxford University Press | ||||||||||||||||||||||||||||||||||||
ISSN: | 1365-2966 | ||||||||||||||||||||||||||||||||||||
Official Date: | 21 January 2019 | ||||||||||||||||||||||||||||||||||||
Dates: |
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Volume: | 482 | ||||||||||||||||||||||||||||||||||||
Number: | 3 | ||||||||||||||||||||||||||||||||||||
Page Range: | pp. 3678-3695 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1093/mnras/sty2847 | ||||||||||||||||||||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||||||||||||||||||||
Date of first compliant deposit: | 21 January 2019 | ||||||||||||||||||||||||||||||||||||
Date of first compliant Open Access: | 21 January 2019 | ||||||||||||||||||||||||||||||||||||
Funder: | Munich Institute for Astro- and Particle Physics | ||||||||||||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
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