Browsing Exact and Earth Sciences by Author "Dottori, Horacio Alberto"

Now showing items 61-63 of 63

    • The plane W(Na I) x W (Mg I) : effects of interstellar Na I in a sample of southern galaxies 

      Bica, Eduardo Luiz Damiani; Pastoriza, Miriani Griselda; Maia, Marcio Antonio Geimba; Silva, Luiz Augusto Leitão da; Dottori, Horacio Alberto (1991) [Journal article]
      Galaxy spectra from a subsample of the Southern Sky Redshift Survey data bank were used to study the equivalent width plane for the lines Na I λ 5893 Å vs Mg I λ 5175 Å. We try to estimate how important the contribution ...

    • The relationship between the Sérsic law profiles measured along the major and minor axes of elliptical galaxies 

      Ferrari, Fabricio; Dottori, Horacio Alberto; Caon, Nicola; Nóbrega, Antonio José Farias; Pavani, Daniela Borges (2004) [Journal article]
      In this paper we discuss the reason why the parameters of the Sérsic model best-fitting the major axis light profile of elliptical galaxies can differ significantly from those derived for the minor axis profile.We show ...

    • V olimpíada brasileira de astronomia 

      Rocha, Jaime Fernando Vilas da; Canalle, João Batista Garcia; Medeiros, José Renan de; Souza, Carlos Alexandre Wuensche de; Silva, Adriana Válio Roque da; Lavouras, Daniel Fonseca; Dottori, Horacio Alberto; Maia, Marcio Antonio Geimba; Poppe, Paulo César da Rocha; Martins, Roberto Vieira (2003) [Journal article]
      Neste trabalho, apresentamos os resultados da V Olimpíada Brasileira de Astronomia, que ocorreu em 11/05/2002 em todos os estabelecimentos de ensino fundamental e médio, previamente cadastrados. Participaram do evento ...