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Birth cluster simulations of planetary systems with multiple super-Earths : initial conditions for white dwarf pollution drivers
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Stock, Katja, Veras, Dimitri, Cai, Maxwell X., Spurzem, Rainer and Portegies Zwart, Simon (2022) Birth cluster simulations of planetary systems with multiple super-Earths : initial conditions for white dwarf pollution drivers. Monthly Notices of the Royal Astronomical Society, 512 (2). pp. 2460-2473. doi:10.1093/mnras/stac602 ISSN 0035-8711.
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Official URL: https://doi.org/10.1093/mnras/stac602
Abstract
Previous investigations have revealed that eccentric super-Earths represent a class of planets that are particularly effective at transporting minor bodies towards white dwarfs and subsequently polluting their atmospheres with observable chemical signatures. However, the lack of discoveries of these planets beyond a few astronomical units from their host stars prompts a better understanding of their orbital architectures from their nascent birth cluster. Here, we perform stellar cluster simulations of three-planet and seven-planet systems containing super-Earths on initially circular, coplanar orbits. We adopt the typical stellar masses of main-sequence progenitors of white dwarfs (1.5M⊙–2.5M⊙) as host stars and include 8000 main-sequence stars following a Kroupa initial mass function in our clusters. Our results reveal that about 30 per cent of the simulated planets generate eccentricities of at least 0.1 by the time of cluster dissolution, which would aid white dwarf pollution. We provide our output parameters to the community for potential use as initial conditions for subsequent evolution simulations.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||||||
Publisher: | Oxford University Press | ||||||||
ISSN: | 0035-8711 | ||||||||
Official Date: | 27 May 2022 | ||||||||
Dates: |
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Volume: | 512 | ||||||||
Number: | 2 | ||||||||
Page Range: | pp. 2460-2473 | ||||||||
DOI: | 10.1093/mnras/stac602 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Re-use Statement: | This is a pre-copyedited, author-produced version of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record, Katja Stock, Dimitri Veras, Maxwell X Cai, Rainer Spurzem, Simon Portegies Zwart, Birth cluster simulations of planetary systems with multiple super-Earths: initial conditions for white dwarf pollution drivers, Monthly Notices of the Royal Astronomical Society, Volume 512, Issue 2, May 2022, Pages 2460–2473, is available online at: https://doi.org/10.1093/mnras/stac602 | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Copyright Holders: | © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society | ||||||||
Date of first compliant deposit: | 9 March 2022 | ||||||||
Date of first compliant Open Access: | 14 April 2022 | ||||||||
RIOXX Funder/Project Grant: |
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