Evolution of a binary system under the tidal effects

• Grant number: 14/04126-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2014
• End date: February 28, 2015
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Solar System Astronomy
• Principal Investigator: Silvia Maria Giuliatti Winter
• Grantee: Natan Carvalho Rosas Quinquiolo
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil
• Associated research grant: 11/08171-3 - Orbital dynamics of minor bodies, AP.TEM

Abstract

Binaries objects are located at the Kuiper Belt, which Charon was the first binary object detected in 1978. From their physical parameters, such as the semi-major axis and eccentricity, one can estimate the origin of the binary: giant collision or dynamical capture (GREENBERG; BARNES, 2008). In this work, we will analyze the orbital evolution of two binary systems under the tidal effects, from the present time (t=0) to the past (until the object gets near the Roche limit), in order to verify the time evolution of the semi-major axis and eccentricity of the binary. The initial value of the eccentricity of the binary can constrain its origin. (AU)