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- W3100494899 abstract "We present new valuable BVI photometry of ten Seyfert 1 galaxies and narrow band Hα images for six of these objects. The results indicate that the distribution of the luminosity of the sample has an amplitude of almost 4 mag with an average of MB=-20.7. The observed morphologies are confined to early type galaxies. A barred structure is found in only 2 objects. Despite that early morphological types are dominant in this sample, integrated () colors are very blue. For instance, the SO galaxies show, on average, a . This effect seems to be caused by the luminosity contribution of the active nucleus and/or the disk to the total luminosity of the galaxy. In the B band, the contribution of the active galactic nucleus to the total luminosity of the galaxy varies from 3% to almost 60% and the bulge to disk luminosity ratio () ranges from 0.6 to 22. Signs of tidal interactions seem to be a common characteristic since they are observed in 6 of the objects and one of them seems to be located in a poor cluster not yet identified in the literature. In contrast, Hα extended emission is rare, with only 1 galaxy showing clear evidence of it. Luminosity profile decomposition shows that the model Gauss + bulge + disk properly reproduces the surface brightness of the galaxies. However, in order to account for the luminosity profile, most of the disk galaxies need the inner truncated exponential form with a central cutoff radius ranging from 3 to 10 kpc. This is interpreted in terms of reddened regions that are well identified in the color maps. These regions present very similar colors among them, with . This fact could be associated with the presence of dust confined in the inner regions of the galaxies." @default.
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- W3100494899 date "2002-03-01" @default.
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- W3100494899 title "Multicolor photometry of ten Seyfert 1 galaxies" @default.
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- W3100494899 doi "https://doi.org/10.1051/0004-6361:20020066" @default.
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