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The fate of exomoons in white dwarf planetary systems
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Payne, Matthew J., Veras, Dimitri, Gänsicke, B. T. (Boris T.) and Holman, Matthew J. (2016) The fate of exomoons in white dwarf planetary systems. Monthly Notices of the Royal Astronomical Society, 464 (3). pp. 2557-2564. doi:10.1093/mnras/stw2585 ISSN 0035-8711.
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WRAP_2017MNRAS.464.2557P.pdf - Published Version - Requires a PDF viewer. Download (1283Kb) | Preview |
Official URL: http://dx.doi.org/10.1093/mnras/stw2585
Abstract
Roughly 1000 white dwarfs are known to be polluted with planetary material, and the progenitors of this material are typically assumed to be asteroids. The dynamical architectures which perturb asteroids into white dwarfs are still unknown, but may be crucially dependent on moons liberated from parent planets during post-main-sequence gravitational scattering. Here, we trace the fate of these exomoons, and show that they more easily achieve deep radial incursions towards the white dwarf than do scattered planets. Consequently, moons are likely to play a significant role in white dwarf pollution, and in some cases may be the progenitors of the pollution itself.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | Celestial mechanics, White dwarf stars, Extrasolar planets | ||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||||||
Publisher: | Oxford University Press | ||||||||
ISSN: | 0035-8711 | ||||||||
Official Date: | 8 October 2016 | ||||||||
Dates: |
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Volume: | 464 | ||||||||
Number: | 3 | ||||||||
Page Range: | pp. 2557-2564 | ||||||||
DOI: | 10.1093/mnras/stw2585 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 10 March 2017 | ||||||||
Date of first compliant Open Access: | 10 March 2017 | ||||||||
Funder: | Royal Society (Great Britain), United States. National Aeronautics and Space Administration (NASA), European Research Council (ERC), Smithsonian Astrophysical Observatory | ||||||||
Grant number: | E140641(Royal Society); NNX13A124G(NASA); NNX10AH40G(NASA); NNX16AD69G(NASA); 320964(ERC); |
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