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Apsidal alignment in migrating dust - Crescent features caused by eccentric planets

Published online by Cambridge University Press:  30 May 2022

Maximilian Sommer Open the ORCID record for Maximilian Sommer [Opens in a new window] ,
Petr Pokorný Open the ORCID record for Petr Pokorný [Opens in a new window] ,
Hajime Yano  and
Ralf Srama
Maximilian Sommer
Affiliation:
University of Stuttgart, Institute of Space Systems, Germany email: [email protected]
Petr Pokorný
Affiliation:
NASA Goddard Spaceflight Center, Greenbelt, USA
Hajime Yano
Affiliation:
JAXA Institute of Space and Astronautical Science, Sagamihara, Japan Graduate University for Advanced Studies (SOKENDAI), Japan
Ralf Srama
Affiliation:
University of Stuttgart, Institute of Space Systems, Germany email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

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Circumstellar discs are known to exist in great variety, from gas-rich discs around the youngest stars to evolved debris discs such as the solar system’s zodiacal cloud. Through gravitational interaction, exoplanets embedded in these discs can generate density variations, imposing potentially observable structural features on the disc such as rings or gaps. Here we report on a mirrored double crescent pattern arising in simulations of discs harbouring a small, moderately eccentric planet - such as Mars. We show that the structure is a result of a directed apsidal precession occurring in particles that migrate the planet’s orbital region under Poynting-Robertson drag. We further analyze the strength of this effect with respect to planet and particle parameters.

Keywords

Circumstellar mattermeteoroidscelestial mechanics
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S364: Multi-scale (Time and Mass) Dynamics of Space Objects (Oct 2021) , October 2019 , pp. 259 - 261
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of International Astronomical Union

References

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