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Dynamics around the binary system (65803) Didymos

Published online by Cambridge University Press:  30 May 2022

R. Machado Oliveira Open the ORCID record for R. Machado Oliveira [Opens in a new window] ,
O. C. Winter ,
R. Sfair ,
G. Valvano ,
T. S. Moura  and
G. Borderes-Motta
R. Machado Oliveira
Affiliation:
Grupo de Dinâmica Oribtal e Planetologia, São Paulo State University, UNESP, Guaratinguetá, CEP 12516-410, São Paulo, Brazil
O. C. Winter
Affiliation:
Grupo de Dinâmica Oribtal e Planetologia, São Paulo State University, UNESP, Guaratinguetá, CEP 12516-410, São Paulo, Brazil
R. Sfair
Affiliation:
Grupo de Dinâmica Oribtal e Planetologia, São Paulo State University, UNESP, Guaratinguetá, CEP 12516-410, São Paulo, Brazil
G. Valvano
Affiliation:
Grupo de Dinâmica Oribtal e Planetologia, São Paulo State University, UNESP, Guaratinguetá, CEP 12516-410, São Paulo, Brazil
T. S. Moura
Affiliation:
Grupo de Dinâmica Oribtal e Planetologia, São Paulo State University, UNESP, Guaratinguetá, CEP 12516-410, São Paulo, Brazil
G. Borderes-Motta
Affiliation:
Bioengineering and Aerospace Engineering Department, Universidad Carlos III de Madrid, Leganés, 28911, Madrid, Spain
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Abstract

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Didymos and Dimorphos are primary and secondary, respectively, asteroids who compose a binary system that make up the set of Near Earth Asteroids (NEAs). They are targets of the Double Asteroid Redirection Test (DART), the first test mission dedicated to study of planetary defense, for which the main goal is to measure the changes caused after the secondary body is hit by a kinect impactor. The present work intends to conduct a study, through numerical integrations, on the dynamics of massless particles distributed in the vicinity of the two bodies. An approximate shape for the primary body was considered as a model of mass concentrations (mascons) and the secondary was considered as a massive point. Our results show the location and size of stable regions, and also their lifetime.

Keywords

AsteroidsBinary systemComputational simulationsMascons
Type
Research Article
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. 197 - 202
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of International Astronomical Union

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