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Obliquity evolution of the minor satellites of Pluto and Charon
Quillen, Alice C.1; Nichols-Fleming, Fiona1; Chen, Yuan-Yuan1,2; Noyelles, Benoit3,4
2017-09-01
Source PublicationICARUS
ISSN0019-1035
Volume293Pages:94-113
Corresponding AuthorQuillen, Alice C.(alice.quillen@gmail.com)
AbstractNew Horizons mission observations show that the small satellites Styx, Nix, Kerberos and Hydra, of the Pluto-Charon system, have not tidally spun-down to near synchronous spin states and have high obliquities with respect to their orbit about the Pluto-Charon binary (Weaver, 2016). We use a damped mass spring model within an N-body simulation to study spin and obliquity evolution for single spinning non round bodies in circumbinary orbit. Simulations with tidal dissipation alone do not show strong obliquity variations from tidally induced spin-orbit resonance crossing and this we attribute to the high satellite spin rates and low orbital eccentricities. However, a tidally evolving Styx exhibits intermittent obliquity variations and episodes of tumbling. During a previous epoch where Charon migrated away from Pluto, the minor satellites could have been trapped in orbital mean motion inclination resonances. An outward migrating Charon induces large variations in Nix and Styx's obliquities. The cause is a commensurability between the mean motion resonance frequency and the spin precession rate of the spinning body. As the minor satellites are near mean motion resonances, this mechanism could have lifted the obliquities of all four minor satellites. The high obliquities need not be primordial if the minor satellites were at one time captured into mean motion resonances. (C) 2017 Elsevier Inc. All rights reserved.
DOI10.1016/j.icarus.2017.04.012
WOS KeywordSOLAR-SYSTEM ; CHAOTIC ROTATION ; TIDAL EVOLUTION ; GIANT PLANETS ; SPIN ; ORIGIN ; BODIES ; RESONANCE ; DYNAMICS ; ORBIT
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000402849700008
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23034
Collection中国科学院紫金山天文台
Corresponding AuthorQuillen, Alice C.
Affiliation1.Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
2.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Namur, Dept Math, 8 Rempart de la Vierge, B-5000 Namur, Belgium
4.Univ Namur, Namur Ctr Complex Syst naXys, 8 Rempart de la Vierge, B-5000 Namur, Belgium
Recommended Citation
GB/T 7714
Quillen, Alice C.,Nichols-Fleming, Fiona,Chen, Yuan-Yuan,et al. Obliquity evolution of the minor satellites of Pluto and Charon[J]. ICARUS,2017,293:94-113.
APA Quillen, Alice C.,Nichols-Fleming, Fiona,Chen, Yuan-Yuan,&Noyelles, Benoit.(2017).Obliquity evolution of the minor satellites of Pluto and Charon.ICARUS,293,94-113.
MLA Quillen, Alice C.,et al."Obliquity evolution of the minor satellites of Pluto and Charon".ICARUS 293(2017):94-113.
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