Identification of asteroids in g-type secular resonances using artificial neural networks.

• Grant number: 22/14241-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2023
• End date: January 31, 2024
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Solar System Astronomy
• Principal Investigator: Valerio Carruba
• Grantee: Marcos Vinicios Faria Lourenço
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

Secular resonances play an important role in the dynamics of small bodies, changing the eccentricity and inclination of the objects of the Solar System. They occur when there is a commensurability between the frequency of precession of an asteroid perihelion, g, or node, s, and the frequency of a planet, like for the case of the ½6 = g-g6 resonance with Saturn. Non-linear secular resonances are higher-order combinations of linear resonances. G-type secular resonances involve the frequency of precession g of the asteroid pericenter, and they affect the proper eccentricities of asteroids in resonant or near-resonance configurations. Here we plan to use Artificial Neural Networks methods to classify images of time-series of resonant angles for asteroids affected by these types of resonances, to facilitate the identification of the resonant population.

Scientific publications

(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)

CARRUBA, V.; ALJBAAE, S.; CARITA, G.; LOURENCO, M. V. F.; MARTINS, B. S.; ALVES, A. A.. Imbalanced classification applied to asteroid resonant dynamics. FRONTIERS IN ASTRONOMY AND SPACE SCIENCES, v. 10, p. 7-pg., 2023-05-11. (22/14241-9)