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  • Estudos fotométricos de objetos transNetunianos 
    AYALA LOERA, MA DEL CARMEN (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2019-07-25)
    This work reports the results of photometric studies of transNeptunian objetcs (TNOs). Absolute magnitudes and phase coefficient from TNOs were computed (H V and β V for 124 TNOs and H R and β R for 123 TNOs). We computed ...
  • A Influência do Planeta Nove nas Órbitas de TNOs 
    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 ...
  • Estudo Fotometrico e Espectroscopico de Asteroides Ricos em Volateis 
    DE JESUS RONDON BRICENO, EDUARDO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2016-12-21)
    Seventeen asteroids of the main belt and three near earth asteroids have shown cometary activity. These objects have been called Active Asteroids (AA) (Jewitt, 2012). The physical source of their activity can be diverse; ...
  • ESTIMAÇÃO DE PARÂMETROS ESTELARES EM LEVANTAMENTOS FOTOMÉTRICOS MULTIFILTROS COM APRENDIZADO DE MÁQUINA 
    GALARZA AREVALO, CARLOS ANDRES (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2022-07-18)
    The data produced by large astronomical surveys (photometric and spectroscopic) represent a great challenge and a new way of doing research, based on sophisticated and precise machine learning techniques that, for example, ...
  • Efeito de Forma sobre espectros de Asteroides e determinacao de constantes opticas 
    GONZALES DAVALOS, JORGE ALEJANDRO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2016-05-24)
    In this work were generated synthetic spectra with shape effect, determining its spectral parameters: the center of the absorption bands, the ratio of the bands and the spectral slope. It has been shown that only the slope ...
  • Estudo dos Parâmetros Físicos de Estrelas com o Fenômeno B[e] na Galáxia e nas Nuvens de Magalhães. 
    HUANCA CONDORI, CESAR AUGUSTO (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2018-09-18)
    Abstract The stars with the B[e] phenomenon are characterized by the presence in the optical spectrum of B-type stars of: intense Balmer emission lines; permitted emission lines of singly ionized metals, e.g., Fe II; and ...
  • DETERMINATION OF PHYSICAL PROPERTIES AND TOPOGRAPHY OF TNOS FROM STELLAR OCCULTATIONS AND ROTATIONAL LIGHT CURVES: THE CASE OF 2002 MS4 OBJECT 
    ROMMEL, FLAVIA LUANE (Observatorio NacionalDivisão de Programas de Pós-Graduação - DIPPGBrasilONPrograma de Pós-Graduação em Astronomia, 2022-12-19)
    Forty-five years had elapsed since the discovery of Chiron, three decades since the first observation of a trans-Neptunian object (except Pluto), and currently, thousands of small objects have been discovered in the outer ...