Navegação Ciências Exatas e da Terra por Autor "Raga, Alex"
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Photoionization of very high excitation gas in circinus galaxy and other active galactic nuclei
Binette, Luc; Wilson, Andrew S.; Raga, Alex; Storchi-Bergmann, Thaisa (1997) [Artigo de periódico]Recent measurements of the Circinus galaxy with ISO by Moorwood et al. (1996) have confirmed the extremely high excitation of the emission-line spectrum in this active galaxy. Moorwood et al. modelled the spectrum in terms ...