Teses de Doutorado PPGA: Recent submissions

  • DE FIGUEIREDO GSCHWEND, JULIA (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2019-12-18)
    The Dark Energy Survey (DES) is an ongoing 5-year program that covers 5000 deg2 of the sky area in five optical-near infrared photometric bands (grizY), designed to measure the dark energy and dark matter densities and the ...
  • CACERES REATEGUI, JESSICA GIOVANNA (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-01-29)
    Large The Influence of Planet Nine on the TNOs Orbits Abstract The hypothesis about the existence of an additional planet residing in the external solar system was recently proposed to explain the orbital confinements ...
  • BANDA HUARCA, MARTIN VALENTIN (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-03-23)
    The Dark Energy Survey (DES) is an international collaborative effort to reveal the nature of the mysterious dark energy which is responsible for the accelerated expansion of the universe. For this, the survey mapped about ...
  • COSTA DE SOUZA, ALAN (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-03-30)
    GPU PARALLELIZATION OF N-BODY ALGORITHMS AND APPLICATIONS TO EXTRASOLAR PLANETARY SYSTEMS Alan Costa de Souza ABSTRACT In this thesis, we analyzed the feasibility and implemented the parallelization of algorithms to solve ...
  • DE SOUZA FELICIANO, ANA CAROLINA (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-04-14)
    In order to contribute to a better understanding of small bodies, we conducted an observational study of different groups of these objects. We developed an algorithm that uses the wavelet technique to improve the spectra ...
  • VIEIRA DE MELO MONTEIRO, FILIPE (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-06-22)
    The population of near-Earth objects (NEOs) is one of the most interesting to be studied because, in addition to its members offering risk to Earth, they are also the smallest bodies in the Solar System whose physical ...
  • DE SOUZA, SANDRO RICARDO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-07-02)
    Title: Instability effects of giant planets on the dynamic evolution of terrestrial planets Abstract: In this thesis, we present studies on the effects of planetary migration in jumping-Jupiter models. Based on a variant ...
  • SAMPAIO DOS SANTOS, HILLYSSON BRUNO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2020-08-28)
    ABSTRACT DIFFUSE LIGHT IN GALAXY CLUSTERS ON DARK ENERGY SURVEY AND ITS CONNECTION WITH THEIR MASS We explore the relation between diffuse intracluster light (central galaxy included) and galaxy cluster mass using a sample ...
  • HOLANDA LUCIANO JUNIOR, JOSE NACIZO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2021-01-28)
    FROM FIELD STARS TO OPEN CLUSTERS: CHEMICAL STUDIES BASED ON HIGH-RESOLUTION SPECTRA Abstract This work presents four comprehensive chemical studies about red giant stars belonging to the field and two open clusters. The ...
  • FONTISIELLA MORELL, DAILER ROLANDO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2021-01-29)
    We analyse the dependence of galaxy evolution on cluster dynamical state and galaxy luminosities for a sample of 146 galaxy clusters from the Yang SDSS DR7 catalogue. Clusters were split according to their velocity ...