Navegação Ciências Exatas e da Terra por Assunto "Radiation mechanisms: thermal"
Resultados 1-3 de 3
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Near-infrared coronal lines in narrow-line Seyfert 1 galaxies
(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
(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
(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 ...