Young, A.K. orcid.org/0000-0001-7414-1648, Stevenson, S., Nixon, C.J. orcid.org/0000-0002-2137-4146 et al. (1 more author) (2023) On the conditions for warping and breaking protoplanetary discs. Monthly Notices of the Royal Astronomical Society, 525 (2). pp. 2616-2631. ISSN 0035-8711
Abstract
Recent observations demonstrate that misalignments and other out-of-plane structures are common in protoplanetary discs. Many of these have been linked to a central host binary with an orbit that is inclined with respect to the disc. We present simulations of misaligned circumbinary discs with a range of parameters to gain a better understanding of the link between those parameters and the disc morphology in the wave-like regime of warp propagation that is appropriate to protoplanetary discs. The simulations confirm that disc tearing is possible in protoplanetary discs as long as the mass ratio, μ, and disc–binary inclination angle, i, are not too small. For the simulations presented here, this corresponds to μ > 0.1 and i ≳ 40°. For highly eccentric binaries, tearing can occur for discs with smaller misalignment. Existing theoretical predictions provide an estimate of the radial extent of the disc in which we can expect breaking to occur. However, there does not seem to be a simple relationship between the disc properties and the radius within the circumbinary disc at which the breaks appear, and furthermore the radius at which the disc breaks can change as a function of time in each case. We discuss the implications of our results for interpreting observations and suggest some considerations for modelling misaligned discs in the future.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Author(s). Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | accretion; accretion discs; hydrodynamics; protoplanetary discs |
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: | 02 Nov 2023 13:58 |
Last Modified: | 02 Nov 2023 13:58 |
Status: | Published |
Publisher: | Oxford University Press |
Identification Number: | 10.1093/mnras/stad2451 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204821 |