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On the nature of the near-UV extended light in Seyfert galaxies
dc.contributor.author | Muñoz Marín, Victor M. | pt_BR |
dc.contributor.author | Storchi-Bergmann, Thaisa | pt_BR |
dc.contributor.author | González Delgado, Rosa M. | pt_BR |
dc.contributor.author | Schmitt, Henrique Roberto | pt_BR |
dc.contributor.author | Spinelli, Patrícia Figueiro | pt_BR |
dc.contributor.author | Pérez Jiménez, Enrique | pt_BR |
dc.contributor.author | Fernandes Junior, Roberto Cid | pt_BR |
dc.date.accessioned | 2014-04-08T01:50:00Z | pt_BR |
dc.date.issued | 2009 | pt_BR |
dc.identifier.issn | 0035-8711 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/90457 | pt_BR |
dc.description.abstract | We study the nature of the extended near-UV emission in the inner kiloparsec of a sample of 15 Seyfert (Sy) galaxies which have both near-UV (F330W) and narrow-band [O III] highresolution Hubble images. For the majority of the objects, we find a very similar morphology in both bands. From the [O III] images, we construct synthetic images of the nebular continuum plus the emission-line contribution expected through the F330W filter, which can be subtracted from the F330W images. We find that the emission of the ionized gas dominates the near-UV extended emission in half of the objects. A further broad-band photometric study, in the bands F330W (U), F547M (V) and F160W (H), shows that the remaining emission is dominated by the underlying galactic bulge contribution. We also find a blue component whose nature is not clear in four out of 15 objects. This component may be attributed to scattered light from the active galactic nuclei, to a young stellar population in unresolved star clusters, or to early disrupted clusters. Star-forming regions and/or bright off nuclear star clusters are observed in 4/15 galaxies of the sample. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Monthly notices of the royal astronomical society. London. Vol. 399, no. 2 (Oct. 2009), p. 842-860 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Nucleo galatico | pt_BR |
dc.subject | Galaxies: nuclei | en |
dc.subject | Galaxias seyfert | pt_BR |
dc.subject | Galaxies: Seyfert | en |
dc.subject | Ultraviolet: galaxies | en |
dc.subject | Galáxias ativas | pt_BR |
dc.subject | Polarimetria | pt_BR |
dc.subject | Espectroscopia otica | pt_BR |
dc.title | On the nature of the near-UV extended light in Seyfert galaxies | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000725718 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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