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Satellites of Saturn: Stability, Capture and Analysis of the Excitations on the Eccentricity and Inclination of the Regular Satellites During the Planetary Migration

Grant number: 10/11109-5
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2010
Effective date (End): March 31, 2014
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Positional Astronomy and Celestial Mechanics
Principal researcher:Tadashi Yokoyama
Grantee:Rogerio Deienno
Home Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). São José dos Campos , SP, Brazil
Associated research grant:06/04997-6 - Close approach problems in orbital dynamics, AP.TEM
Associated scholarship(s):12/23732-4 - Capture of irregular satellites during the planetary migration, BE.EP.DR

Abstract

In the Nice Model (Tsiganis et al, 2005) there is a consensus that the regular satellites are primordial and resisted the migration, while the irregular ones were captured a posteriori or during the migration. Although this never was tested in a rigorous way, in Deienno (2010), Deienno et al (2010), this problem was exaustively studied in the case of Uranus system. What is observed is that: from qualitative and statiscal point of view that is true, however the final resulting values of the eccentricity and inclination of the regular satellites are difficult to explain when compared to the current values. In this proposal, one studies some post Migration mechanism, such that the inclination and eccentricity could be damped to the current values as seen today. Additionaly, a similar and comparative investigation will be extended to Saturn system (already in progress). The study of the capture of the irregular satellites is an important point to be considered in this proposal.

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BRASIL, P. I. O.; PRADO, A. F. B. A.; DEIENNO, R.; YOKOYAMA, T. Study of the gravitational capture of a spacecraft by Jupiter. Advances in Space Research, v. 55, n. 2, p. 668-681, JAN 15 2015. Web of Science Citations: 7.
NESVORNY, DAVID; VOKROUHLICKY, DAVID; DEIENNO, ROGERIO; WALSH, KEVIN J. EXCITATION OF THE ORBITAL INCLINATION OF IAPETUS DURING PLANETARY ENCOUNTERS. ASTRONOMICAL JOURNAL, v. 148, n. 3 SEP 2014. Web of Science Citations: 11.
DEIENNO, ROGERIO; NESVORNY, DAVID; VOKROUHLICKY, DAVID; YOKOYAMA, TADASHI. ORBITAL PERTURBATIONS OF THE GALILEAN SATELLITES DURING PLANETARY ENCOUNTERS. ASTRONOMICAL JOURNAL, v. 148, n. 2 AUG 2014. Web of Science Citations: 18.
NESVORNY, DAVID; VOKROUHLICKY, DAVID; DEIENNO, ROGERIO. CAPTURE OF IRREGULAR SATELLITES AT JUPITER. ASTROPHYSICAL JOURNAL, v. 784, n. 1 MAR 20 2014. Web of Science Citations: 39.
DEIENNO, R.; YOKOYAMA, T.; NOGUEIRA, E. C.; CALLEGARI, JR., N.; SANTOS, M. T. Effects of the planetary migration on some primordial satellites of the outer planets. Astronomy & Astrophysics, v. 536, DEC 2011. Web of Science Citations: 11.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.