Proxima Centauri

Stable Orbits in the Feeding Zone of the Planet Proxima Centauri c

By Keith Cowing
Press Release
September 5, 2023
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Stable Orbits in the Feeding Zone of the Planet Proxima Centauri c
Proxima Centauri c

Estimates of the size of the feeding zone of the planet Proxima Centauri c have been made at initial orbital eccentricities of planetesimals equal to 0.02 or 0.15.

The research is based on the results of modeling of the evolution of planetesimals’ orbits under the influence of the star and planets Proxima Centauri c and b. The considered time interval reached a billion years.

It was found that after the accumulation of the planet Proxima Centauri c some planetesimals may have continues to move in stable elliptical orbits within its feeding zone, largely cleared of planetesimals. Usually such planetesimals can move in some resonances with the planet (Proxima Centauri c), for example, in the resonance 1:1 (as Jupiter Trojans), 5:4 and 3:4 and usually have small eccentricities.

Some planetesimals that moved for a long time (1-2 million years) along chaotic orbits fell into the resonances 5:2 and 3:10 with the planet Proxima Centauri c and moved in them at least tens of millions of years.

S. I. Ipatov

Comments: 13 pages, 11 figures
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:2309.00492 [astro-ph.EP] (or arXiv:2309.00492v1 [astro-ph.EP] for this version)
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Journal reference: Solar System Research, 2023, v. 57, N 3, P. 236-248
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Submission history
From: Sergei Ipatov
[v1] Fri, 1 Sep 2023 14:37:34 UTC (1,214 KB)

Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻