The nuclear region of NGC 7469
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Abstract
We have made spectrophotometric observations of the nuclear and circumnuclear regions of the Seyfert 1 galaxy NGC 7469, and we analyze the dynamics and structure of the emission-line regions. In the nuclear region of NGC 7469, we found a broad, an intermediate, and a narrow line-emitting region. The broad !ines (FWHM7800 km s-ˡ) are formed within a distance R0.05 pc from the central source. For the narrow line region, there is a large range in electron density and a scheme of ionization struct ...
We have made spectrophotometric observations of the nuclear and circumnuclear regions of the Seyfert 1 galaxy NGC 7469, and we analyze the dynamics and structure of the emission-line regions. In the nuclear region of NGC 7469, we found a broad, an intermediate, and a narrow line-emitting region. The broad !ines (FWHM7800 km s-ˡ) are formed within a distance R0.05 pc from the central source. For the narrow line region, there is a large range in electron density and a scheme of ionization structure. The circumnuclear stellar population consists mostly of very old stars, and at a distance R 8" from the nucleus, we detected the presence of hot, young stars. The gas at R 8" is nitrogen overabundant. ...
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The astrophysical journal. Chicago. Vol. 353, no. 2, pt. 1 (Apr. 1990), p. 445-451
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Estrangeiro
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Artigos de Periódicos (40021)Ciências Exatas e da Terra (6101)
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