Booth, AS and Ilee, JD orcid.org/0000-0003-1008-1142 (2020) 13C17O suggests gravitational instability in the HL Tau disc. Monthly Notices of the Royal Astronomical Society: Letters, 493 (1). L108-L113. ISSN 1745-3925
Abstract
We present the first detection of the 13C17O J = 3–2 transition toward the HL Tau protoplanetary disc. We find significantly more gas mass (at least a factor of 10 higher) than has been previously reported using C18O emission. This brings the observed total disc mass to 0.2 M⊙, which we consider to be a conservative lower limit. Our analysis of the Toomre Q profile suggests that this brings the disc into the regime of gravitational instability. The radial region of instability (50–110 au) coincides with the location of a proposed planet-carved gap in the dust disc, and a spiral in the gas. We therefore propose that if the origin of the gap is confirmed to be due to a forming giant planet, then it is likely to have formed via the gravitational fragmentation of the protoplanetary disc.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This article has been published in Monthly Notices of the Royal Astronomical Society © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Keywords: | techniques: interferometric, protoplanetary discs, stars: individual: HL Tau, stars: pre-main-sequence, submillimetre: planetary systems |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Astrophysics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Jun 2022 11:37 |
Last Modified: | 28 Jun 2022 11:37 |
Status: | Published |
Publisher: | Oxford University Press (OUP) |
Identification Number: | 10.1093/mnrasl/slaa014 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:188154 |