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Chaotic orbits obeying one isolating integral in a four-dimensional map
(Wiley Blackwell Publishing, Inc, 2018-02)
We have recently presented strong evidence that chaotic orbits that obey one isolating integral besides energy exist in a toy Hamiltonian model with three degrees of freedom and are bounded by regular orbits that isolate ...
Stability in the most external region of the Oort Cloud: evolution of the ejected comets
(Oxford University Press, 2019-10)
In this paper, we present a study of the dynamical effects of the Galaxy on the external region of the Oort Cloud. Theaimsofthispaperare: (i) to determine an outer limit for the Oort Cloud; and (ii) to analyse the dynamical ...
A new orbit for comet C/1819 N1 (Great comet of 1819)
(Universidad Nacional Autónoma de México, 2017-01)
A new orbit is calculated for Comet C/1819 N1 (Great Comet of 1819) to replace Peck’s parabolic orbit of 1906. The orbit is based upon 402 observations in right ascension and 294 in declination, made between July and October ...
Lidov-Kozai stability regions in the α Centauri system
(EDP Sciences, 2017-09)
The stability of planets in the α Centauri AB stellar system has been studied extensively. However, most studies either focus on the orbital plane of the binary or consider inclined circular orbits. Here, we numerically ...
The Eccentric Kozai-Lidov Mechanism for Outer Test Particle
(IOP Publishing, 2017-07)
The secular approximation of the hierarchical three body systems has been proven to be very useful in addressing many astrophysical systems, from planets to stars to black holes. In such a system, two objects are on a tight ...
Dynamic portrait of the region occupied by the Hungaria asteroids: the influence of Mars
(Oxford University Press, 2018-06)
The region occupied by the Hungaria asteroids has a high-dynamical complexity. In this paper, we analyse the main dynamic structures and their influence on the known asteroids through the construction of maps of initial ...
Resonance capture and dynamics of three-planet systems
(Wiley Blackwell Publishing, Inc, 2018-06)
We present a series of dynamical maps for fictitious three-planet systems in initially circular coplanar orbits. These maps have unveiled a rich resonant structure involving two or three planets, as well as indicating ...
The dynamical evolution of close-in binary systems formed by a super-Earth and its host star: Case of the Kepler-21 system
(EDP Sciences, 2020-09)
Aims. The aim of this work is to develop a formalism for the study of the secular evolution of a binary system which includes interaction due to the tides that each body imparts on the other. We also consider the influence ...
Results of the investigation of the asteroid (2121) Sevastopol based on photometric observations of mutual phenomena
(Pergamon-Elsevier Science Ltd, 2019-05)
The asteroid (2121) Sevastopol is a binary asteroid from the main belt. The duplicity of the asteroid was discovered based on photometric observations of mutual phenomena (eclipses and occultations) that were detected in ...
A self-consistent weak friction model for the tidal evolution of circumbinary planets
(EDP Sciences, 2019-07)
We present a self-consistent model for the tidal evolution of circumbinary planets that is easily extensible to any other three-body problem. Based on the weak-friction model, we derive expressions of the resulting forces ...