SIMBAD references

2009MNRAS.399..842M - Mon. Not. R. Astron. Soc., 399, 842-860 (2009/October-3)

On the nature of the near-UV extended light in Seyfert galaxies.

MUNOZ MARIN V.M., STORCHI-BERGMANN T., GONZALEZ DELGADO R.M., SCHMITT H.R., SPINELLI P.F., PEREZ E. and CID FERNANDES R.

Abstract (from CDS):

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.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): galaxies: nuclei - galaxies: Seyfert - ultraviolet: galaxies

Simbad objects: 45

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2020.11.25-13:39:53

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