2002A&A...383..104C


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST01:36:46

2002A&A...383..104C - Astronomy and Astrophysics, volume 383, 104-111 (2002/2-3)

The HST survey of the B2 sample of radio-galaxies: Optical nuclei and the FR I/BL Lac unified scheme.

CAPETTI A., CELOTTI A., CHIABERGE M., DE RUITER H.R., FANTI R., MORGANTI R. and PARMA P.

Abstract (from CDS):

We examine the optical properties of the nuclei of low luminosity radio-galaxies using snapshot HST images of the B2 sample. In agreement with the results obtained from the analysis of the brighter 3C/FR I sample, we find a correlation between fluxes (and luminosities) of the optical and radio cores. This provides further support for the interpretation that the optical nuclear emission in FR I is dominated by synchrotron emission and that accretion in these sources takes place in a low efficiency radiative regime. In the framework of the FR I/BL Lacs unified scheme, we find that the luminosity difference between FR I and BL Lac nuclei can be reproduced with a common beaming factor in both the radio and the optical band, independent of the extended radio luminosity, thus supporting such a scenario. The corresponding bulk Lorentz factor is significantly smaller than is expected from observational and theoretical considerations in BL Lacs: this can be interpreted as due to a velocity structure in the jet, with a fast spine surrounded by a slower layer.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: elliptical and lenticular, cD - galaxies: jets - galaxies: nuclei

Simbad objects: 59

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Number of rows : 59

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 Z 479-45 rG 00 37 05.490 +25 41 56.43   14.8       ~ 75 0
2 NGC 315 LIN 00 57 48.88335 +30 21 08.8122 12.80 12.20 11.16 11.26   ~ 707 2
3 NGC 326 rG 00 58 22.637 +26 51 58.61   14.9 13     ~ 162 2
4 NGC 383 rG 01 07 24.95870 +32 24 45.2140   13.6 12.14     ~ 720 3
5 4C 31.04 rG 01 19 35.0033970 +32 10 50.058043   16 14.5     ~ 213 1
6 NGC 507 BiC 01 23 39.950 +33 15 22.22   13.0       ~ 395 3
7 NGC 708 BiC 01 52 46.482 +36 09 06.53 14.85 14.27 13.29 12.67 12.09 ~ 212 3
8 MCG+05-16-010 AGN 06 52 02.497 +27 27 39.81   14.9       ~ 77 1
9 LEDA 20369 Sy2 07 11 47.7 +32 18 35     15.8     ~ 31 0
10 NVSS J072537+295714 rG 07 25 37.258 +29 57 14.79   15.60       ~ 76 2
11 3C 189 QSO 07 58 28.10816 +37 47 11.8073   14.15 14.9     ~ 229 1
12 7C 090845.50+373633.00 BiC 09 11 53.612 +37 24 13.30   16.1       ~ 61 1
13 7C 0915+3203 AGN 09 18 57.9208878372 +31 51 10.777847306   15.5       ~ 59 1
14 IC 2476 LIN 09 27 52.824 +29 59 08.70   14.5       ~ 85 0
15 ICRF J100601.7+345410 Sy1 10 06 01.75030199 +34 54 10.4005583   15.97       ~ 407 2
16 2MASX J10063883+2554452 BiC 10 06 38.816 +25 54 44.82   16.21       ~ 37 1
17 2MASX J10075705+2801479 BiC 10 07 57.067 +28 01 47.97           ~ 30 0
18 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2383 1
19 2MASX J11160377+2441018 BiC 11 16 03.802 +24 41 02.08   15.80       ~ 26 0
20 7C 120500.59+340920.00 Sy2 12 07 32.930 +33 52 40.13   16.4       ~ 67 1
21 NGC 4278 LIN 12 20 06.82563 +29 16 50.7124 11.54 11.09 10.16     ~ 888 2
22 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1635 2
23 NAME Coma A Sy2 12 54 12.052 +27 37 34.15   15.94       ~ 342 1
24 NGC 4869 rG 12 59 23.331 +27 54 41.81 15.03 14.9 13.52 13.292 12.536 ~ 259 0
25 NGC 4874 LIN 12 59 35.709 +27 57 33.80 13.01 13.7 11.40 12.122 11.386 ~ 714 3
26 NGC 5127 LIN 13 23 45.018 +31 33 56.72   13.9       ~ 157 0
27 NGC 5141 LIN 13 24 51.44115875 +36 22 42.7741809   13.9       ~ 164 1
28 UGC 8669 BiC 13 41 50.454 +26 22 13.08   15.3 15.3     ~ 40 2
29 ACO 1775 ClG 13 41 55.6 +26 21 53           ~ 277 0
30 MCG+05-33-005 LIN 13 48 52.511 +26 35 34.84   14.0       ~ 220 2
31 NVSS J135013+281644 rG 13 50 13.546 +28 16 45.19   16.02       ~ 38 1
32 UGC 8782 LIN 13 52 17.765 +31 26 46.10   16.10 15.10     ~ 420 3
33 NVSS J140000+283038 rG 14 00 00.40 +28 30 38.2           ~ 36 1
34 MCG+05-34-033 Sy2 14 24 40.5279323590 +26 37 30.467747179   15.6 15.62     ~ 96 1
35 4C 25.46 rG 14 32 41.4662803924 +24 55 17.915833801     16.5     ~ 40 1
36 MCG+05-35-018 AGN 14 49 27.925 +27 46 50.33   15.0       ~ 45 1
37 NVSS J145233+275758 rG 14 52 33.6 +27 57 54           ~ 66 1
38 2MASX J14575384+2832188 Sy2 14 57 53.840 +28 32 18.86   16.00       ~ 40 1
39 NVSS J145942+290334 rG 14 59 41.909 +29 03 31.64           ~ 20 1
40 VV 204 AGN 15 04 57.120 +26 00 58.46   15.24       ~ 274 0
41 4C 26.47 AGN 15 13 40.0227468596 +26 07 23.710955469   16.30       ~ 217 1
42 NVSS J151404+300846 rG 15 14 04.175 +30 08 47.11   16.47       ~ 33 0
43 2MASX J15232693+2837323 BiC 15 23 26.910 +28 37 32.53   15.68 15.5     ~ 62 0
44 UGC 9861 BiC 15 27 45.110 +28 55 44.04   15.4       ~ 27 0
45 2MASX J15294558+3042355 BiC 15 29 45.605 +30 42 35.63           ~ 36 0
46 PKS 1553+245 rG 15 56 03.875 +24 26 52.70   15.4       ~ 86 1
47 IC 4587 LIN 15 59 51.6141171802 +25 56 26.320462797   15.5       ~ 46 1
48 NGC 6086 BiC 16 12 35.531 +29 29 05.19   14.8       ~ 173 1
49 NVSS J161531+272657 rG 16 15 31.3594362835 +27 26 57.325593241           ~ 38 1
50 7C 161547.29+322956.00 Sy1 16 17 42.5379079793 +32 22 34.373288602   18.25 17.45     ~ 230 1
51 3C 338.0 QSO 16 28 38.2443686587 +39 33 04.231770853   12.78 11.78     ~ 702 5
52 4C 30.31 rG 17 00 45.2306715604 +30 08 12.865819789   15.00 14.3     ~ 68 0
53 4C 31.47 rG 17 28 20.134 +31 46 03.01   15.5       ~ 124 1
54 NVSS J182852+321855 Rad 18 28 52.80 +32 18 55.0           ~ 35 1
55 ICRF J183503.3+324146 Sy1 18 35 03.3896681512 +32 41 46.856048508   16.50 15.39 10.50   ~ 578 1
56 NGC 7052 rG 21 18 33.047 +26 26 48.65 15.52 14.85 13.09     ~ 299 1
57 UGC 12064 AGN 22 31 20.625 +39 21 29.81   14.6       ~ 418 1
58 NVSS J223829+351946 rG 22 38 29.417 +35 19 46.84   15.0       ~ 92 1
59 NGC 7720 Sy1 23 38 29.38322439 +27 01 53.2583763   13.9 13.3     ~ 512 4

    Equat.    Gal    SGal    Ecl

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2020.07.13-01:36:46

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