1998A&AS..132..197K


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST11:28:47

1998A&AS..132..197K - Astron. Astrophys., Suppl. Ser., 132, 197-210 (1998/October-2)

Optical colour maps of Seyfert galaxies. II. More Seyfert 2s.

KOTILAINEN J.K.

Abstract (from CDS):

We present optical broad band B-I colour maps of a further sample of 10 Seyfert 2 galaxies. In these bands, the contribution from emission lines to the total flux is small, and hence the images predominantly trace the continuum distribution. As in our earlier colour maps of a sample of Seyferts type 1 and 2, we detect extended blue continuum components in the circumnuclear region of several galaxies. These components are either elongated (in Mkn 533, Mkn 607, Mkn 1066, NGC 5347, NGC 5953 and NGC 7319) or form a double structure across the nucleus (in NGC 5929). They are closely aligned with the radio and emission line axes of these galaxies and probably arise from scattering of nuclear continuum light by extranuclear mirrors. Similar blue elongations (in Mkn 1 and NGC 7212) and double structures (in NGC 788) are less well aligned with the radio and line emission, and their relationship with scattering regions must be considered uncertain. The colours of the blue maxima are consistent with those expected from scattering off dust or electrons, a conclusion strengthened by the combined sample of the two papers in this series. Our findings thus strongly support the current unified models of AGN.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: seyfert - galaxies: stellar content - galaxies: structure

Simbad objects: 18

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Number of rows : 18

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NGC 449 Sy2 01 16 07.2096682810 +33 05 21.651153340   15.90 14.96     ~ 265 4
2 Mrk 573 Sy2 01 43 57.7763654544 +02 20 59.525472345   14.90 14.07     ~ 469 0
3 NGC 788 Sy2 02 01 06.4622976350 -06 48 57.146217363   13.71 12.76 11.79   ~ 204 0
4 M 77 GiP 02 42 40.771 -00 00 47.84 9.70 9.61 8.87 10.1 9.9 ~ 3983 2
5 Mrk 1066 Sy2 02 59 58.5970307633 +36 49 13.808979663   14.89 13.96     ~ 315 1
6 NGC 1320 Sy2 03 24 48.6903707574 -03 02 32.121207374   14.0 14.00     ~ 226 0
7 Mrk 3 Sy2 06 15 36.458 +71 02 15.24 14.21 14.03 12.97     ~ 826 3
8 NGC 3227 GiP 10 23 30.57 +19 51 54.3   12.61 11.79     ~ 1494 2
9 NGC 4151 Sy1 12 10 32.5771747733 +39 24 21.057727323   12.18 11.48     ~ 3306 2
10 NGC 5347 Sy2 13 53 17.7993659226 +33 29 26.989049245   13.46 12.70     ~ 303 1
11 NGC 5929 GiP 15 26 06.158 +41 40 14.40   13.0 14.00     ~ 408 0
12 NGC 5930 GiP 15 26 07.9964334517 +41 40 33.691556640   13.0       ~ 409 0
13 NGC 5953 GiP 15 34 32.402 +15 11 37.80   13.23 12.45     ~ 330 1
14 NGC 5954 GiP 15 34 35.175 +15 11 53.67   13.7       ~ 151 0
15 NGC 7212 Sy2 22 07 01.9866638486 +10 14 00.849716443   15.1       ~ 156 1
16 NGC 7319 Sy2 22 36 03.602 +33 58 33.18   14.57 13.53 12.65   ~ 248 0
17 NGC 7674 Sy2 23 27 56.6974755223 +08 46 44.238278540 13.84 13.92 13.23 12.64   ~ 620 4
18 NGC 7675 GiG 23 28 05.9210547115 +08 46 06.692981283   14.8   13.20   ~ 57 1

    Equat.    Gal    SGal    Ecl

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2019.10.17-11:28:47

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