28 citations · 120 across the 13 of their papers we have counts for
14 papers
Dynamics around non-spherical symmetric bodies - III. The case of a spherical body with a crater
P. V. S. Soares, G. Madeira, S. M. Giuliatti Winter +2
Motivated by the peculiar features of the trans-Neptunian object (TNO) Máni and the discovery of ring systems around Centaurs and trans-Neptunian bodies, we investigate the stabili…
A critical neumann problem with anisotropic p-laplacian
Gustavo F. Madeira, Olímpio H. Miyakaki, Alânnio B. Nóbrega
We are concerned with the existence of solution of the problem $ -Δ^H_pu+|u|^{p-2}u=λ|u|^{q-2}u+ |u|^{p^*-2}u\quad \mbox{in}\quadΩ,$ $u>0\quad \mbox{in}\quadΩ,$ $a(\nabla u)\cdot ν…
On the stability around Chariklo and the confinement of its rings
S. M. Giuliatti Winter, G. Madeira, T. Ribeiro +3
Chariklo has two narrow and dense rings, C1R and C2R, located at 391 km and 405 km, respectively. In the light of new stellar occultation data, we study the stability around Charik…
Dynamical origin of Dimorphos from fast spinning Didymos
Gustavo Madeira, Sebastien Charnoz, Ryuki Hyodo
Didymos is a binary near-Earth asteroid. It is the target of the DART and HERA space missions. The primary body, Didymos, rotates close to the spin at which it is expected to shed…
Challenges in forming Phobos and Deimos directly from a splitting of an ancestral single moon
Ryuki Hyodo, Hidenori Genda, Ryosuke Sekiguchi +2
The origin and evolution of Martian moons have been intensively debated in recent years. It is proposed that Phobos and Deimos may originate directly from a splitting of an ancestr…
Numerical analysis of processes for the formation of moonlets confining the arcs of Neptune
Gustavo Madeira, Silvia Maria Giuliatti Winter
The arcs of Neptune - Fraternité, Egalité, Liberté, and Courage - are four incomplete rings immersed in the Adams ring. A recent confinement model for the arcs proposes that the st…
Long-term Dynamical Evolution of Pallene (Saturn XXXIII) and its Diffuse, Dusty Ring
Marco A. Muñoz-Gutiérrez, A. Paula Granados Contreras, Gustavo Madeira +2
The distinctive set of Saturnian small satellites, Aegaeon, Methone, Anthe, and Pallene, constitutes an excellent laboratory to understand the evolution of systems immersed in co-o…
Dynamics around Non-Spherical Symmetric Bodies: I. The case of a spherical body with mass anomaly
G. Madeira, S. M. Giuliatti Winter, T. Ribeiro +1
The space missions designed to visit small bodies of the Solar System boosted the study of the dynamics around non-spherical bodies. In this vein, we study the dynamics around a cl…
Building the Galilean moons system via pebble accretion and migration: A primordial resonant chain
Gustavo Madeira, André Izidoro, Silvia M. Giuliatti Winter
The origins of the Galilean satellites - namely Io, Europa, Ganymede, and Callisto - is not fully understood yet. Here we use N-body numerical simulations to study the formation of…
Neptune's ring arcs confined by coorbital satellites: dust orbital evolution through solar radiation
Silvia Maria Giuliatti Winter, Gustavo Madeira, Rafael Sfair
Voyager 2 images confirmed the presence of ring arcs around Neptune. These structures need a confinement mechanism to constrain their spreading due to collisions, dissipative force…
Effects of immersed moonlets in the ring arc particles of Saturn
Gustavo Madeira, Silvia Maria Giuliatti Winter
Ring arcs are the result of particles in corotation resonances with nearby satellites. Arcs are present in Saturn and Neptune systems, in Saturn they are also associated with small…
Analysing the region of the rings and small satellites of Neptune
D. M. Gaslac Gallardo, S. M. Giuliatti Winter, G. Madeira +1
The ring system and small satellites of Neptune were discovered during Voyager 2 flyby in 1989 (Smith et al.1989). In this work we analyse the diffusion maps which can give an over…
Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
Gustavo Madeira, R. Sfair, D. C. Mourão +1
The G ring arc hosts the smallest satellite of Saturn, Aegaeon, observed with a set of images sent by Cassini spacecraft. Along with Aegaeon, the arc particles are trapped in a 7:6…
Generalized spectrum of the -Laplacian under a parametric boundary condition
Jamil Abreu, Gustavo Madeira
In this paper we study an eigenvalue problem for the so called -Laplace operator on a smooth bounded domain under a nonlinear Steklov type boundary condition, namely \begin{…