Navegação Ciências Exatas e da Terra por Assunto "Radiation mechanisms: thermal"

Resultados 1-3 de 3

    • Near-infrared coronal lines in narrow-line Seyfert 1 galaxies 

      Rodriguez-Ardila, Alberto; Viegas, Sueli Maria Marino; Pastoriza, Miriani Griselda; Prato, Lisa A. (2002) [Artigo de periódico]
      We report spectroscopic observations in the wavelength region 0.8–2.4 μm aimed at detecting near-infrared coronal lines in a sample of five narrow-line and one broad-line Seyfert 1 galaxies. Our measurements show that [Si ...

    • A snapshot of the continuous emission of the active galactic nucleus in ngc 3783 from gamma-ray to radio wavelengths 

      Alloin, Danielle Marie; Santos-Lleo, M.; Peterson, Bradley M.; Wamsteker, W.; Altieri, B.; Brinkmann, W.; Crenshaw, Daniel Michael; George, I.M.; Clavel, J.; Glass, I.S.; Johnson, W.N.; Kriss, Gerard A.; Malkan, M.A.; Polidan, R.S.; Reichert, G.A.; Rodriguez-Pascual, P.M.; Romanishin, W.; Starr, C.H.; Stirpe, Giovanna M.; Taylor, M.; Turner, T.J.; Vega, H.J. de; Winge, Claudia; Wood, D.O.S. (1995) [Artigo de periódico]
      With the aim of better understanding the physical processes that produce the continuous emission in active galactic nuclei (AGNs), a snapshot of the overall continuous energy distribution of NGC 3783, from γ-ray to radio ...

    • The O [iota] line emission in active galactic nuclei revisited 

      Rodriguez-Ardila, Alberto; Viegas, Sueli Maria Marino; Pastoriza, Miriani Griselda; Prato, Lisa A.; Donzelli, Carlos J. (2002) [Artigo de periódico]
      UV, visible, and near-infrared spectroscopy is used to study the transitions of neutral oxygen leading to the emission of broad O i λ8446, λ11287, and λ1304 in active galactic nuclei. From the strength of the former two ...