2009A&A...508..603B


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST03:58:57

2009A&A...508..603B - Astronomy and Astrophysics, volume 508, 603-614 (2009/12-3)

Radio and spectroscopic properties of miniature radio galaxies: revealing the bulk of the radio-loud AGN population.

BALDI R.D. and CAPETTI A.

Abstract (from CDS):

We explore radio and spectroscopic properties of a sample of 14 miniature radio galaxies, i.e. early-type core galaxies hosting radio-loud AGN of extremely low radio power, 1027–29erg/s/Hz at 1.4GHz. Miniature radio galaxies smoothly extend the relationships found for the more powerful FR I radio galaxies between emission line, optical and radio nuclear luminosities to lower levels. However, they have a deficit of a factor of ∼100 in extended radio emission with respect to that of the classical example of 3CR/FR I. This is not due to their low luminosity, since we found radio galaxies of higher radio core power, similar to those of 3CR/FR I, showing the same behavior, i.e. lacking significant extended radio emission. Such sources form the bulk of the population of radio-loud AGN in the Sloan Digital Sky Survey. At a given level of nuclear emission, one can find radio sources with an extremely wide range, a factor of >100, of radio power. We argue that the prevalence of sources with luminous extended radio structures in flux limited samples is due to a selection bias, since the inclusion of such objects is highly favored. The most studied catalogues of radio galaxies are thus composed by the minority of radio-loud AGN that meet the physical conditions required to form extended radio sources, while the bulk of the population is virtually unexplored.

Abstract Copyright:

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

Simbad objects: 38

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Number of rows : 38

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 87GB 005314.6+260945 BiC 00 55 50.583 +26 24 36.68   18.63   16.26   ~ 198 1
2 NGC 315 LIN 00 57 48.88335 +30 21 08.8122 12.80 12.20 11.16 11.26   ~ 723 2
3 NGC 524 GiP 01 24 47.707 +09 32 19.65   11.5       ~ 431 1
4 7C 022224.00+365659.00 Bla 02 25 27.3267948625 +37 10 27.741998994   15.0   9.5   ~ 58 1
5 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3632 3
6 MCG+05-16-010 AGN 06 52 02.497 +27 27 39.81   14.9       ~ 78 1
7 NVSS J072537+295714 rG 07 25 37.258 +29 57 14.79   15.60       ~ 78 2
8 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1397 0
9 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2443 1
10 [VV2006] J111654.8+180304 QSO 11 16 54.657 +18 03 06.51   13.84 12.76     ~ 442 0
11 7C 1144+3517 BLL 11 47 22.13056 +35 01 07.5226   17.89 16.83 10.26   ~ 157 1
12 NGC 4168 Sy1 12 12 17.234 +13 12 19.27 12.58 12.11 11.18     ~ 358 2
13 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1141 0
14 NGC 4278 LIN 12 20 06.8253868 +29 16 50.713486 11.54 11.09 10.16     ~ 898 2
15 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1665 2
16 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6011 0
17 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1989 2
18 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6384 3
19 M 89 LIN 12 35 39.8073444 +12 33 22.830809 11.29 10.73 9.75     ~ 941 2
20 NGC 4589 LIN 12 37 25.0 +74 11 31   12.0       ~ 268 1
21 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1051 1
22 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1270 0
23 3C 277.3 BLL 12 54 12.052 +27 37 34.15   15.94       ~ 346 1
24 NGC 5322 SyG 13 49 15.24 +60 11 25.8   11.3       ~ 386 2
25 IC 1065 Sy2 14 49 21.5921149894 +63 16 13.816373757   17.30 16.39     ~ 342 1
26 NGC 5813 LIN 15 01 11.265 +01 42 07.09 12.00 11.45 10.46 10.06   ~ 591 1
27 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 789 1
28 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 508 3
29 3C 314.1 rG 15 10 23.1 +70 45 54   17       ~ 89 0
30 IC 4587 LIN 15 59 51.6141171802 +25 56 26.320462797   15.5       ~ 50 1
31 NVSS J164028+320529 rG 16 40 28.80 +32 05 29.2           ~ 20 1
32 NAME Hercules A BiC 16 51 08.024 +04 59 34.91     18.25     ~ 438 1
33 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1961 2
34 3C 371 BLL 18 06 50.6803567107 +69 49 28.108152993   14.77 14.22 11.39   ~ 808 2
35 3C 386.0 rG 18 38 26.237 +17 11 49.75   15.85 14.6     ~ 187 2
36 B2 2116+26 A Rad 21 18 16 +26 59.5           ~ 8 0
37 2MASX J21234458+2504272 Sy2 21 23 44.582 +25 04 27.23   17.660 16.350     ~ 304 0
38 NAME Local Group GrG ~ ~           ~ 7235 0

    Equat.    Gal    SGal    Ecl

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2021.04.19-03:58:57

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