Navegação Ciências Exatas e da Terra por Autor "Asari, Natalia Vale"

Resultados 1-3 de 3

    • An atlas of calcium triplet spectra of active galaxies 

      Garcia-Rissmann, Aurea; Neme, Luis Rodolfo Vega; Asari, Natalia Vale; Fernandes Junior, Roberto Cid; Schmitt, Henrique Roberto; González Delgado, Rosa M.; Storchi-Bergmann, Thaisa (2005) [Artigo de periódico]
      We present a spectroscopic atlas of active galactic nuclei covering the region around the λλ8498, 8542, 8662 calcium triplet (CaT). The sample comprises 78 objects, divided into 43 Seyfert 2s, 26 Seyfert 1s, three starburst ...

    • Planetary nebulae and the ionization of the interstellar medium in galaxies 

      Stasinska, Grazyna; Trevisan, Marina; Asari, Natalia Vale (2022) [Artigo de periódico]
      We discuss the role of planetary nebulae and their progeny in galaxy context in terms of ionization of the galaxy interstellar medium. This regards ionized gas outside the disk of spiral galaxies, the diffuse ionized medium ...

    • The CaT strength in Seyfert nuclei revisited : analysing young stars and non-stellar light contributions to the spectra 

      Neme, Luis Rodolfo Vega; Asari, Natalia Vale; Fernandes Junior, Roberto Cid; Garcia-Rissmann, Aurea; Storchi-Bergmann, Thaisa; González Delgado, Rosa M.; Schmitt, Henrique Roberto (2009) [Artigo de periódico]
      In a former paper, we have presented spectra of 64 active, nine normal and five starburst galaxies in the region around the near-infrared calcium triplet (CaT) absorption lines and the [S III]λ9069 line. In the present ...