2012ApJ...757..140S

Query : 2012ApJ...757..140S

2012ApJ...757..140S - Astrophys. J., 757, 140 (2012/October-1)

Accretion properties of high- and low-excitation young radio galaxies.

SON D., WOO J.-H., KIM S.C., FU H., KAWAKATU N., BENNERT V.N., NAGAO T. and PARK D.

Abstract (from CDS):

Young radio galaxies (YRGs) provide an ideal laboratory to explore the connection between the accretion disk and radio jet thanks to their recent jet formation. We investigate the relationship between the emission-line properties, the black hole accretion rate, and the radio properties using a sample of 34 low-redshift (z < 0.4) YRGs. We classify YRGs as high-excitation galaxies (HEGs) and low-excitation galaxies (LEGs) based on the flux ratio of high-ionization to low-ionization emission lines. Using the Hα luminosities as a proxy of accretion rate, we find that HEGs in YRGs have ∼1 dex higher Eddington ratios than LEGs in YRGs, suggesting that HEGs have a higher mass accretion rate or higher radiative efficiency than LEGs. In agreement with previous studies, we find that the luminosities of emission lines, in particular Hα, are correlated with radio core luminosity, suggesting that accretion and young radio activities are fundamentally connected.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: jets - galaxies: nuclei - galaxies: Seyfert

Simbad objects: 40

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Number of rows : 40
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ICRF J002225.4+001456 Sy2 00 22 25.42584644 +00 14 56.1630395   21.1       ~ 125 1
2 4C 00.03 Sy2 00 28 33.4223118840 +00 55 11.003002176   18.69 18.17     ~ 36 1
3 NVSS J003808+230327 rG 00 38 08.1024 +23 03 28.440           ~ 35 1
4 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
5 7C 022118.10+273638.00 Sy1 02 24 12.2865158736 +27 50 11.538285648   19.502 18 18.263   ~ 210 1
6 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
7 3C 93.1 BLL 03 48 46.9073426592 +33 53 15.461439576   20.723   19.110   ~ 133 1
8 PKS 0428+205 rG 04 31 03.76141386 +20 37 34.2648470   22.174   19.085   ~ 198 1
9 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1153 0
10 2C 524 Sy2 06 09 32.701768 +48 04 17.04207   21.198 18.00 18.767   ~ 182 1
11 2MASX J07575670+3959363 Sy2 07 57 56.7148709832 +39 59 36.104570412           ~ 47 1
12 4C 07.22 BLL 08 13 23.7541734000 +07 34 05.603579760   19.28 18.44     ~ 36 1
13 LEDA 26638 Sy1 09 24 05.3017245816 +14 10 21.513088308   19.28 18.47     ~ 33 1
14 PMN J0934+0305 rG 09 34 30.6842444592 +03 05 45.337007472   18.5   17.3 16.50 ~ 20 2
15 ICRF J094336.9-081930 LIN 09 43 36.94453828 -08 19 30.8202783   19.401   18.100   ~ 125 2
16 NVSS J094525+352103 rG 09 45 25.9005678048 +35 21 03.561543864   19.37 18.65     ~ 33 1
17 2MASX J10095550+1401547 LIN 10 09 55.5118948152 +14 01 54.287661108   19.92 19.04     ~ 33 1
18 Feige 34 HS* 10 39 36.7358839104 +43 06 09.212615280 9.613 10.91 11.14 11.319 11.464 sdOp 731 0
19 7C 103742.79+301338.00 LIN 10 40 29.9436842112 +29 57 57.795289452 19.85 16 16.05     ~ 53 1
20 87GB 115453.8+433443 Sy1 11 57 27.6034274352 +43 18 06.331660632   18.76 18.33     ~ 44 1
21 3C 268.3 Sy2 12 06 24.70656 +64 13 36.8760 22.74 21.847 20.790 19.910   ~ 196 1
22 7C 122515.59+441716.00 Sy2 12 27 41.9944552429 +44 00 41.926757263           ~ 22 1
23 NVSS J123535+413707 rG 12 35 35.7115 +41 37 07.054           ~ 23 1
24 ICRF J124733.3+672316 Bla 12 47 33.32959326 +67 23 16.4488689           ~ 100 2
25 2E 2879 Sy1 12 52 26.3561235816 +56 34 19.573734864   18.42 18.11 17.660   ~ 293 2
26 4C 32.44 QSO 13 26 16.5142 +31 54 09.522   21.367 19.822 18.882   ~ 181 1
27 PKS 1345+12 Sy2 13 47 33.36161873 +12 17 24.2398927   19.28 18.44 15.718   ~ 652 2
28 Mrk 668 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 826 3
29 87GB 140732.1+361738 Sy1 14 09 42.4485402456 +36 04 15.887047296           ~ 25 1
30 BD+26 2606 SB* 14 49 02.3593347728 +25 42 09.192358874 9.92 10.16 9.73 9.27 8.95 A5 383 0
31 7C 155812.19+533918.00 Sy2 15 59 27.644 +53 30 52.05   19.68 18.86     ~ 25 1
32 4C 52.37 Sy1 16 02 46.3870735776 +52 43 58.675644984   18.50 17.76     ~ 45 1
33 4C 40.34 BLL 16 11 48.5301162024 +40 40 20.955442404           ~ 26 1
34 EGGR 327 WD* 16 27 53.4891141091 +09 12 16.023524499 16.008 16.475 16.117 15.899 15.683 DA6.9 105 0
35 Z 340-35 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 909 1
36 ICRF J194431.5+544807 BLL 19 44 31.51155734 +54 48 07.0622434   21.732   18.591   ~ 80 1
37 V* V2011 Cyg SB* 20 12 33.1203741480 +40 16 05.445674868 7.32 7.85 7.55     O4.5V(n)((f)) 221 0
38 HD 340611 WD* 20 34 21.8847019255 +25 03 49.750446346 10.687 11.471 11.546 11.648 11.728 DA2.4 329 0
39 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 837 0
40 6C 235239+493337 BLL 23 55 09.45814429 +49 50 08.3394994   21.101   18.400   ~ 284 1

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