Rapid formation of binary asteroid systems post rotational failure: A recipe for making atypically shaped satellites

Wimarsson, John; Xiang, Zhen; Ferrari, Fabio; Jutzi, Martin; Madeira, Gustavo; Raducan, Sabina D.; Sánchez, Paul

doi:10.1016/j.icarus.2024.116223

Icarus

2024

DOI: 10.1016/j.icarus.2024.116223

|View full text |Cite

Rapid formation of binary asteroid systems post rotational failure: A recipe for making atypically shaped satellites

John Wimarsson,

Zhen Xiang,

Fabio Ferrari

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 130 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

The Dynamical State of the Didymos System before and after the DART Impact

Richardson,

Agrusa,

Barbee

et al. 2024

Planet. Sci. J.

View full text Add to dashboard Cite

NASA’s Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the natural satellite of (65803) Didymos, on 2022 September 26, as a first successful test of kinetic impactor technology for deflecting a potentially hazardous object in space. The experiment resulted in a small change to the dynamical state of the Didymos system consistent with expectations and Level 1 mission requirements. In the preencounter paper, predictions were put forward regarding the pre- and postimpact dynamical state of the Didymos system. Here we assess these predictions, update preliminary findings published after the impact, report on new findings related to dynamics, and provide implications for ESA’s Hera mission to Didymos, scheduled for launch in 2024 October with arrival in 2026 December. Preencounter predictions tested to date are largely in line with observations, despite the unexpected, flattened appearance of Didymos compared to the radar model and the apparent preimpact oblate shape of Dimorphos (with implications for the origin of the system that remain under investigation). New findings include that Dimorphos likely became prolate due to the impact and may have entered a tumbling rotation state. A possible detection of a postimpact transient secular decrease in the binary orbital period suggests possible dynamical coupling with persistent ejecta. Timescales for damping of any tumbling and clearing of any debris are uncertain. The largest uncertainty in the momentum transfer enhancement factor of the DART impact remains the mass of Dimorphos, which will be resolved by the Hera mission.

show abstract

The Dynamical State of the Didymos System before and after the DART Impact

Richardson,

Agrusa,

Barbee

et al. 2024

Planet. Sci. J.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Rapid formation of binary asteroid systems post rotational failure: A recipe for making atypically shaped satellites

Cited by 1 publication

References 130 publications

The Dynamical State of the Didymos System before and after the DART Impact

The Dynamical State of the Didymos System before and after the DART Impact

Contact Info

Product

Resources

About