Navegação por Autor "Fernandes, Roberto Cid"

Resultados 1-6 de 6

    • An atlas of the circumnuclear regions of 75 Seyfert galaxies in the near-ultraviolet with the Hubble Space Telescope advanced camara for surveys 

      Muñoz Marín, Victor M.; González Delgado, Rosa M.; Schmitt, Henrique Roberto; Fernandes, Roberto Cid; Pérez Jiménez, Enrique; Storchi-Bergmann, Thaisa; Heckman, Timothy M.; Leitherer, Claus (2007) [Artigo de periódico]
      We present an atlas of the central regions of 75 Seyfert galaxies imaged in the near-UV with the Advanced Camera for Surveys of the Hubble Space Telescope at an average resolution of ~10 pc. These data complement archival ...

    • Exploring the AGN-merger connection in Arp 245 : I: nuclear star formation and gas outflow in NGC 2992 

      Pereira, Muryel Guolo; Dutra, Daniel Ruschel; Storchi-Bergmann, Thaisa; Müller, Allan Schnorr; Fernandes, Roberto Cid; Couto, Guilherme dos Santos; Dametto, Natacha Zanon; Hernández Jiménez, José Andrés (2021) [Artigo de periódico]
      Galaxy mergers are central to our understanding of galaxy formation, especially within the context of hierarchical models. Besides having a large impact on the star formation history, mergers are also able to influence gas ...

    • Panchromatic averaged stellar populations 

      Riffel, Rogério; Bonatto, Charles Jose; Fernandes, Roberto Cid; Pastoriza, Miriani Griselda; Balbinot, Eduardo (2011) [Artigo de periódico]
      We study how the spectral fitting of galaxies, in terms of light fractions, derived in one spectral region translates into another region, by using results from evolutionary synthesis models. In particular, we examine ...

    • The nature of the HE0450-2958 system 

      Merritt, David; Storchi-Bergmann, Thaisa; Robinson, Andrew; Batcheldor, Dan; Axon, David J.; Fernandes, Roberto Cid (2006) [Artigo de periódico]
      Magain et al. argued that the host galaxy of the quasar in HE0450−2958 is substantially underluminous given the quasar brightness. Using kinematical information from the spectra of the quasar and the companion galaxy, an ...

    • The stellar populations of low-luminosity active galactic nuclei. I. Ground-based observations 

      Fernandes, Roberto Cid; González Delgado, Rosa M.; Schmitt, Henrique Roberto; Storchi-Bergmann, Thaisa; Martins, Lucimara Pires; Pérez Jiménez, Enrique; Heckman, Timothy M.; Leitherer, Claus; Schaerer, Daniel (2004) [Artigo de periódico]
      We present a spectroscopic study of the stellar populations of low-luminosity active galactic nuclei (LLAGNs). Our main goal is to determine whether the stars that live in the innermost (100 pc scale) regions of these ...

    • The stellar populations of low-luminosity active galactic nuclei. II. Space telescope imaging spectrograph observations 

      González Delgado, Rosa M.; Fernandes, Roberto Cid; Storchi-Bergmann, Thaisa; Martins, Lucimara Pires; Pérez Jiménez, Enrique; Heckman, Timothy M.; Leitherer, Claus; Schaerer, Daniel (2004) [Artigo de periódico]
      We present a study of the stellar populations of low-luminosity active galactic nuclei (LLAGNs). Our goal is to search for spectroscopic signatures of young and intermediate-age stars and to investigate their relationship ...