A Comparison between the narrow-line regions of Seyfert 1 and Seyfert 2 galaxies
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Abstract
We present high-resolution narrow-band [O III] images of Seyfert 1 and Seyfert galaxies, obtained in the Hubble Space Telescope Data Archive. The continuum-subtr cted [O III] images were useto measure the narrow-line region (NLR) sizes and compare them wlth the predtctlons from te Umfied Scheme. This paper shows that the Seyfert 1 NLR sizes are much smaller than the NLR stzes of the Seyfert 2's if they were observed pole-on. We propose that the Unified Scheme inot wrong but rather that the Seyf ...
We present high-resolution narrow-band [O III] images of Seyfert 1 and Seyfert galaxies, obtained in the Hubble Space Telescope Data Archive. The continuum-subtr cted [O III] images were useto measure the narrow-line region (NLR) sizes and compare them wlth the predtctlons from te Umfied Scheme. This paper shows that the Seyfert 1 NLR sizes are much smaller than the NLR stzes of the Seyfert 2's if they were observed pole-on. We propose that the Unified Scheme inot wrong but rather that the Seyfert 1's may have their torus axes aligned close to the galaxy plane axts. ...
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The astrophysical journal. Chicago. Vol. 463, no. 2, pt. 1 (June 1996), p. 498-508
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Estrangeiro
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Artigos de Periódicos (39558)Ciências Exatas e da Terra (6036)
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