Apsidal precession in binary asteroids Journal Article

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Overview

abstract

• While the secondary in a binary asteroid plays an important role in the precession of the mutual orbit, this role has not been thoroughly studied. Given the complex spin-orbit-coupled dynamics in binary asteroids, we used a numerical approach to study the relationship between the secondary’s shape and spin and the apsidal precession rate of the orbit. Using this approach in conjunction with observations of Didymos, we find it is likely that Dimorphos was significantly reshaped as a result of the DART impact, with its new shape more elongated than the pre-impact shape. Finally, we show that non-principal axis rotation of the secondary can lead to a chaotic evolution of the longitude of the periapsis.

CU Boulder Authors

• Scheeres, Daniel J.

publication date

• August 1, 2024

has restriction

• hybrid

Date in CU Experts

• August 22, 2024 2:21 AM

Full Author List

• Meyer AJ; Scheeres DJ

author count

• 2

published in

• Astronomy and Astrophysics: a European journal  Journal

Other Profiles

International Standard Serial Number (ISSN)

• 0004-6361

Electronic International Standard Serial Number (EISSN)

• 1432-0746

Digital Object Identifier (DOI)

• https://doi.org/10.1051/0004-6361/202450246

Additional Document Info

start page

• A119

end page

• A119

volume

• 688