NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-20 T23:12:11 PDT
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For refcode 2009MNRAS.399..842M:
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Copyright by Royal Astronomical Society. 2009MNRAS.399..842M On the nature of the near-UV extended light in Seyfert galaxies Marin, V. M. Munoz; Storchi-Bergmann, T.; Delgado, R. M. Gonzalez; Schmitt, H. R.; Spinelli, P. F.; Perez, E.; Cid Fernandes, R. 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 [OIII] high-resolution Hubble images. For the majority of the objects, we find a very similar morphology in both bands. From the [OIII] 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. Key words: galaxies: nuclei, galaxies: Seyfert, ultraviolet: galaxies
Retrieve 42 NED objects in this reference.
Please click here for ADS abstract

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