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Programação Do Cbdo 2016 PROGRAMAÇÃO DO CBDO 2016 Segunda-feira, 28 de novembro 08:00 – 12:00 Inscrições, entrega de material 14:20 Cerimônia de Abertura do XVIII CBDO 14:40 Cerimônia de Homenagem ao Prof. Sylvio Ferraz-Mello (Fernando V. Roig - ON) 15:30 Palestra de Abertura – Sylvio Ferraz-Mello (USP): Marés anelásticas em satélites e exoplanetas 16:30 Intervalo 16:45 Entrega do Prêmio Wagner Sessin 17:00 – 17h30 Palestrante Vencedor Categoria Astronomia Dinâmica e Planetária: F. Braga-Ribas (UTFPR): Ocultação estelar pelo satélite Vanth (Orcus/1): primeira predição e detecção 17:30 – 18h00 Palestrante Vencedor Categoria Mecânica Orbital e Controle: Diogo Merguizo Sanchez (INPE): On the use of perturbation maps in Astrodynamics and Celestial Mechanics 18:40 Coquetel de recepção. 19:40 Jantar. Terça-feira, 29 de novembro (8:20 – 10:00): Sessão 1 – Mecânica orbital e Controle I – Chair: Elbert Macau 8:20 – 9:20 (60 min) Kathleen Connor Howell (Palestrante convidado, Univ. de Purdue/EUA): Dynamical Systems Methods Applied to Spacecraft Trajectory Design 9:20 – 09:40 Priscilla A. de Sousa-Silva (ITA): Fast low-cost Earth-Moon transfers: a new strategy to compute optimal solutions using patched three- body systems 1 9:40 – 10:00 Jean Carvalho (UFRB): Effects of the solar radiation pressure and the nonsphericity of the planet (J2, J3, C22) in frozen orbits around mercury 10:00 – 10:20 Intervalo 10:20 – 11:20 (60 min) Celso Grebogi (Palestrante convidado, Univ. de Aberdeen/Escócia): Minicurso – Sistemas Dinâmicos, Parte 1: Transient Chaos – Chair: Juliano Oliveira 11:20 Sessão de pôsteres Mecânica orbital e Controle I (MOC I) 12:00 Almoço (14:20 – 16:20): Sessão 2 – Astronomia I - Chair: Sylvio Ferraz Mello 14:20 – 15:20 (60 min) Hauke Hussmann (Palestrante convidado, Centro Aeroespacial/Alemanha): Interior Structure and Dynamics of Satellites in the Outer Solar System 15:20 – 15:40 Hugo Folonier (USP): Titan's Length-of-Day Variation 15:40 – 16:00 Leonardo D.S. Trotta (UNESP): Modelo Dinâmico 3-d para a evolução do sistema Plutão-Caronte 16:00 – 16:20 Rafael Sfair (UNESP): O anel coorbital a Janus e Epimetheus 16:00 – 16h20 Intervalo 16:40 – 17h40 (60 min): Celso Grebogi (Palestrante convidado, Univ. de Aberdeen/Escócia): Minicurso – Sistemas Dinâmicos, Parte 2: Compressive sensing based prediction of complex dynamics and complex networks – Chair: Juliano Oliveira 17:40 Sessão de pôsteres Astronomia I (AST I) 19:00 Jantar. Quarta-feira, 30 de novembro Manhã: Sessão 3 – Sistemas Dinâmicos – Chair: Juliano Oliveira 2 8:00 – 9:00 (60 min) Celso Grebogi (Palestrante convidado, Univ. de Aberdeen/Escócia): Minicurso – Sistemas Dinâmicos, Parte 3: Tipping Point in Networked Dynamical Systems – Chair: Juliano Oliveira 9:00 – 09:20 Teresa J. Stuchi (UFRJ): Não Integrabilidade do hamiltoniano de Armburster-Gukenheimer-Kim com a teoria de Morales-Ramis 9:20 – 09:40 Marisa Roberto (ITA): Tokamaks com desviadores poloidais 9:40 – 10:00 R. Egydio de Carvalho (UNESP): Robust attractor of non-twist systems 10:00 – 10:20 Intervalo 10:20 – 11:20 (60 min) Ricardo Viana (Palestrante convidado, UFPR): Fractal structures in nonlinear plasma physics 11:20 Sessão de pôsteres Sistemas Dinâmicos (SD) 12:00 Almoço Tarde: Sessão 4 – Mecânica Orbital e Controle II – Chair: Marisa Roberto 14:20 – 15:20 (60 min) Hauke Hussmann (Palestrante convidado, Centro Aeroespacial/Alemanha): Laser Altimetry in Planetary Applications 15:20 – 15:40 Jânia Duha (IFPR): The Yarkovsky-Duha effect and the unexpected strong correlation of thermal force with infrared radiation source colatitude 15:40 – 16:00 Jarbas Cordeiro Sampaio (IFBA): Space Debris in the neighborhood of operation artificial satellites 16:00 – 16:20 Liana Dias Gonçalves (INPE): Trajetórias na vizinhança de Fobos visando sobrevoo e aproximação 16:20 – 16h40 Intervalo 16:40 – 17h40 (60 min) Alexander A. Sukhanov (Palestrante convidado, Inst.de Ciências Espaciais/Rússia): Aster Project: First Brazilian Mission to Deep Space 3 17:40 Sessão de pôsteres Geral 19:00 Jantar. Quinta-feira, 01 de dezembro Manhã: Sessão 5 – Astronomia II – Chair: Tadashi Yokoyama 8:00 – 9:00 (60 min) Tabaré Gallardo (Palestrante convidado, Univ. da República/Uruguai): Dynamics of high perihelion Transneptunian Objects 9:00 – 09:20 Carolina Charalambous (UNC/Argentina): Planetary migration and the origin of the 2/1 and 3/2 (near)-resonant population of close-in exoplanets 9:20 – 09:40 Eduardo S. G. Leandro (UFPE): Fatoração do Polinômio de Estabilidade de um Sistema Anular de N Corpos 9:40 – 10:00 Marcelo Assafin (ON): Predição do Ocultações Estelares por Satélites Irregulares até 2020 10:00 – 10:20 Intervalo 10:20 – 11:20 (60 min) Valéry Lainey (Palestrante convidado, Observatório de Paris/França): Quantification of tidal dissipation among giant planets from astrometry 11:20 Sessão de pôsteres Astronomia II (AST II) 12:00 Almoço Tarde: Sessão 6 – Mecânica Orbital e Controle III – Chair: Antonio Bertachini 14:20 – 15:20 (60 min) Mitchell L. R. Walker (Palestrante convidado, Inst. de Tecnologia da Geórgia/EUA): Unique Applications of Electric Propulsion 15:20 – 15:40 Ijar M. da Fonseca (INPE): Critical Applications of Fault Detection Isolation and Recovery for Spacecrat 15:40 – 16:00 Francisco J. T. Salazar (UNESP): Aproveitamento da energia solar por meio de espelhos espaciais 4 16:00 – 16:20 Leandro Baroni (UFABC): Filtro de Kalman para a determinação de atitude de um CubeSat usando sensores de baixo custo 16:20 – 16h40 Intervalo 16:40 – 17h40 (60 min): Georgi Smirnov (Palestrante convidado, Univ. do Minho/Portugal): Mathematical problems of orbital maneuvers with single-input control 17:40 Sessão de pôsteres Mecânica Orbital e Controle II (MOC II) 19:00 Jantar. Sexta-feira, 02 de dezembro Manhã: Sessão 7 – Astronomia III – Chair: Maria Helena Morais 8:00 – 9:00 (60 min) Fathi Namouni (Palestrante convidado, Observ. “de la Côte d'Azur”/França): Resonance dynamics at arbitrary inclination 9:00 – 09:20 André Izidoro (CNRS): Making Planet-9 from the scattering of planetary cores during the accretion of Uranus and Neptune 9:20 – 09:40 Rodney da Silva Gomes (ON): A Inclinação do Eixo de Rotação do Sol pode ser explicada pela Presença de um Planeta Distante 9:40 – 10:00 Fernando V. Roig (ON): Formação de crateras de impacto nos planetas terrestres e na Lua durante a instabilidade dos planetas gigantes 10:00 – 10:20 Intervalo 10:20 – 10:40 Valério Carruba (UNESP): Detection of the YORP Effect for Small Asteroids in the Karin Cluster 11:00 Encerramento. 5 SESSÕES DE PÔSTERES Terça-feira, 29 de novembro Manhã: Sessão 1 – Mecânica orbital e Controle I 11:20 Sessão de pôsteres Mecânica orbital e Controle I (MOC I) Pôsteres MOC I-1 até 48 e MOC II-12 e SD-5 Tarde: Sessão 2 – Astronomia I 17:40 Sessão de pôsteres Astronomia I (AST I) Pôsteres AST I-1 até 31 e AST II-15 e AST II-16 Quarta-feira, 30 de novembro Manhã: Sessão 3 – Sistemas Dinâmicos 11:20 Sessão de pôsteres Sistemas Dinâmicos (SD) Pôsteres SD-1 até 12 Tarde 17:40 Sessão de pôsteres Geral Todas as áreas Quinta-feira, 01 de dezembro Manhã: Sessão 5 – Astronomia II 11:20 Sessão de pôsteres Astronomia II (AST II) Pôsteres AST II-1 até 36 Tarde: Sessão 6 – Mecânica Orbital e Controle III 17:40 Sessão de pôsteres Mecânica Orbital e Controle II (MOC II) Pôsteres MOC II-1 até 38 e MOC I-13 6 RESUMOS DOS TRABALHOS AST I-1 Evolução spin – órbita em sistemas de dois planetas usando modelo viscoelástico de deformação Adrián Rodríguez Colucci (1), Nelson Callegari Jr. (2), Alexandre Correia (3) (1) Observatório do Valongo – UFRJ, (2) DEMAC/UNESP, (3) Universidade de Aveiro Investigamos a evolução das órbitas e da rotação em sistemas de dois planetas que interagem mutuamente, assumindo que o planeta interno é deformado de forma viscoelástica pela força de maré da estrela central. A análise é feita através da resolução numérica das equações exatas do movimento e da deformação instantânea da figura do planeta. A aplicação ao sistema extrassolar CoRoT-7 mostra que, dependendo do tempo de relaxamento da deformação, a rotação do planeta interno pode ficar capturada em ressonância spin-órbita. Para tempos de relaxamento grandes, a excentricidade da órbita interna pode ser exitada e atingir grandes valores, podendo dar uma explicação às altas excentricidades observadas em alguns sistemas de super-Terras quentes com companheiros externos. Agradecimentos: Fapesp AST I-2 Uso de programação GPU para simulações em mecânica celeste Alan Costa de Souza (1), Fernando Roig (1) (1) Observatório Nacional Um dos objetivos da mecânica celeste é tentar prever o comportamento de um sistema de N corpos, no passado ou no futuro, evoluindo sob a ação de certas forças. Para tanto, é necessário conhecer a sua posição e velocidade no presente. Na maioria das vezes, a única alternativa para conseguir isto é utilizando simulações computacionais. Até meados dos anos 90 essas simulações eram realizadas de forma sequencial, porém, o surgimento de processadores multinúcleos tornou possível o desenvolvimento de algoritmos paralelos. Tais algoritmos são mais eficientes que os sequenciais, reduzindo o tempo total gasto nas simulações. 7 Diante disto, nesse trabalho vamos mostrar como uma implementação paralela em GPU[2] pode ser muito mais eficiente que uma implementação sequencial. A modo de exemplo, faremos uma comparação entre um código sequencial usando o algoritmo simplético de quarta ordem de Ruth[1] e a implementação do mesmo algoritmo usando GPU, executando numa placa gráfica inicialmente designada para execução de jogos de computador, mas que atualmente é usada para executar simulações massivamente paralelas em diversas áreas da ciência. Referências [1] Forest, Etienne e Ronald D. Ruth. "Fourth-order Symplectic integration. Physica D: Nonlinear Phenomena 43.1 (1990): 105-117. [2] https://developer.nvidia.com/cuda-zone Agradecimentos: CAPES, CNPq MOC I-1 Análise da sensibilidade dos parâmetros envolvidos em uma manobra de Swing-By propulsada Alessandra F.
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