2004A&A...428..373B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST23:36:00

2004A&A...428..373B - Astronomy and Astrophysics, volume 428, 373-382 (2004/12-3)

Stellar populations in Active Galactic Nuclei. III.

BOISSON C., JOLY M., PELAT D. and WARD M.J.

Abstract (from CDS):

In this paper we apply the stellar population synthesis method previously described in Boisson et al. (2000A&A...357..850B) to five more AGN. The analysis of these new data strengthen our previous conclusions: i) homogeneity of the stellar population within a class of nuclear activity regardless of the morphological type of the host galaxy; ii) populations within the nuclear regions of LINERs and Seyfert 2s are different: LINERs have a very old metal-rich population while in the Seyfert 2s a contribution of a weak burst of star formation is observed together with the old high metallicity component; iii) in the circum-nuclar region (200pc≤D≤1kpc) of all the active galaxies in our sample, except for NGC 2992, we detect an old burst of star formation (0.2-1Gyr),which is contrary to what is observed in normal galaxies. We note that the broad OIλ8446Å emission line detected in the spectrum of the nucleus of NGC 2992 confirms its classification as a Seyfert 1.

Abstract Copyright:

Journal keyword(s): galaxies: stellar content - galaxies: active

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 2110 Sy2 05 52 11.3760694860 -07 27 22.489931610   14.77 13.51 11.86   ~ 584 1
2 NGC 2273 Sy2 06 50 08.6724567505 +60 50 44.879789544   14.50 13.54     ~ 459 3
3 NGC 2992 Sy2 09 45 42.045 -14 19 34.90 13.54 13.14 12.18 12.6 12.2 ~ 786 3
4 NGC 2993 EmG 09 45 48.325 -14 22 06.02 12.72 13.11 12.64 13.4 13.0 ~ 158 1
5 NGC 3081 Sy2 09 59 29.5436045645 -22 49 34.748021329   13.06 13.55 11.67 12.1 ~ 412 0
6 NGC 3783 Sy1 11 39 01.7095761008 -37 44 19.008597647   12.46 13.43 11.33 12.1 ~ 1487 0
7 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1959 2

    Equat.    Gal    SGal    Ecl

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2020.07.13-23:36:00

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