Now showing items 1-2 of 2

    • Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b 

      Girardi, Leo Alberto; Bica, Eduardo Luiz Damiani; Pastoriza, Miriani Griselda; Winge, Claudia (1997) [Journal article]
      We present new long-slit spectrophotometric observations in the range 3700-7200 Å of the H II regions Gum 38a and Gum 38b (RCW 57). We study the spatial distribution of reddenig ad excitation throughout the complex by means ...
    • A strong correlation between circumnuclear dust and black hole accretion in early-type galaxies 

      Lopes, Ramiro Duarte Simões; Storchi-Bergmann, Thaisa; Saraiva, Maria de Fátima Oliveira; Martini, Paul (2007) [Journal article]
      We present a detailed investigation of the incidence of circumnuclear dust structure in a large, well-matched sample of early-type galaxies with and without active galactic nuclei (AGNs). All 34 early-type AGN hosts in our ...