2012A&A...543A..57Z


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.30CET22:22:29

2012A&A...543A..57Z - Astronomy and Astrophysics, volume 543A, 57-57 (2012/7-1)

Compact radio emission from z ∼ 0.2 X-ray bright AGN.

ZUTHER J., FISCHER S. and ECKART A.

Abstract (from CDS):

The radio and X-ray emission of active galctic nuclei (AGN) appears to be correlated. The details of the underlying physical processes, however, are still not fully understood, i.e., to what extent the X-ray and radio emission is originating from the same relativistic particles, or from the accretion-disk, or corona, or both. We study the cm radio emission of an SDSS/ROSAT/FIRST matched sample of 13 X-raying AGN in the redshift range 0.11≤z≤0.37 at high angular resolution with the goal of searching for jet structures or diffuse, extended emission on sub-kpc scales. We used MERLIN at 18cm for all objects and Western EVN at 18cm for four objects to study the radio emission on scales of ∼500pc and ∼40pc for the MERLIN and EVN observations, respectively. The detected emission is dominated by compact nuclear radio structures. We find no kpc collimated jet structures. The EVN data indicate compact nuclei on 40pc scales, with brightness temperatures typical for accretion-disk scenarios. Comparison with FIRST data shows that the 18cm emission is resolved out up to 50% by MERLIN. Star-formation rates based on large aperture SDSS spectra are generally too low to produce considerable contamination of the nuclear radio emission. We can, therefore, assume the 18cm flux densities to be produced in the nuclei of the AGN. Together with the ROSAT soft X-ray luminosities and black-hole mass estimates from the literature, our sample objects closely follow the Mercoli et al. (2003MNRAS.345.1057M) fundamental plane relation, which appears to trace the accretion processes. Detailed X-ray spectral modeling from deeper hard X-ray observations and higher angular resolution at radio wavelengths are required to make more progress in separating jet and accretion related processes.

Abstract Copyright:

Journal keyword(s): galaxies: nuclei - radio continuum: galaxies - techniques: interferometric

Simbad objects: 39

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Number of rows : 39

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 SDSS J010649.39+010322.4 Sy1 01 06 49.371 +01 03 22.54     19.91     ~ 7 0
2 ZwCl 0104+0048 ClG 01 06 49.884 +01 03 20.44           ~ 48 0
3 4C 01.02 QSO 01 08 38.7712667820 +01 35 00.318317679   18.54 18.39 19.05   ~ 469 1
4 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2536 2
5 SN 1986J SN* 02 22 31.33 +42 19 56.4   18.4 18.4     SNII 307 1
6 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1541 2
7 [VV2006] J030123.6+011835 QSO 03 01 23.6051563963 +01 18 35.961202487   21.0 20.5 19.8   ~ 25 1
8 PB 7009 Sy1 03 06 39.575 +00 03 43.15   18.00 17.54     ~ 59 0
9 7C 055201.39+394824.00 QSO 05 55 30.80561150 +39 48 49.1649664     18.0 17.5   ~ 469 2
10 ICRF J074640.4+273459 QSO 07 46 40.43230698 +27 34 59.0473025       21.14   ~ 32 1
11 SDSS J074738.25+245626.1 G 07 47 38.257 +24 56 26.21           ~ 2 0
12 2MASS J07473839+2456374 Sy1 07 47 38.3933246535 +24 56 37.410992765   17.55 17.31     ~ 26 0
13 ICRF J080108.2+440110 BLL 08 01 08.2761713 +44 01 10.155894   20.55 20.07 19.7   ~ 36 1
14 2MASS J08032248+4333069 Sy1 08 03 22.4857286879 +43 33 07.061425253   19.18 18.76     ~ 25 0
15 SDSS J080324.87+433330.1 * 08 03 24.871 +43 33 30.13           ~ 1 0
16 PKS 0802+212 Rad 08 05 38.5342477 +21 06 51.592856           ~ 26 1
17 7C 080303.00+451313.00 QSO 08 06 33.4725381 +45 04 32.272526   19.83 19.54 19.39   ~ 45 1
18 4C 48.21 QSO 08 06 44.4276742120 +48 41 49.158184841   17.98 17.78     ~ 40 1
19 SDSS J080645.63+484156.6 * 08 06 45.629 +48 41 56.92           ~ 1 0
20 7C 080458.39+495918.00 QSO 08 08 39.66628353 +49 50 36.5304035   19.55 19.18 18.34   ~ 328 2
21 2MASS J08102608+2341563 Sy1 08 10 26.0721817087 +23 41 56.233785430   19.34 18.64     ~ 9 0
22 SDSS J092707.09+532742.3 * 09 27 07.0970968873 +53 27 42.323802061           ~ 1 0
23 SDSS J092710.60+532731.6 BLL 09 27 10.610 +53 27 31.57       15.9   ~ 8 0
24 ZwCl 0923+5340 ClG 09 27 10.8 +53 27 00           ~ 16 0
25 ICRF J093241.1+530633 Sy1 09 32 41.1504952962 +53 06 33.807077419   19.38 19.18 18.82   ~ 64 1
26 ICRF J133153.8+060823 QSO 13 31 53.8971339 +06 08 23.391373           ~ 15 1
27 QSO B1337+637 QSO 13 39 23.7852109073 +63 28 58.415651926   19.38 19.30     ~ 48 0
28 2E 3124 Sy1 13 42 06.5683065662 +05 05 23.910605861   17.54 17.32     ~ 57 0
29 2MASX J13442084+6637172 Sy1 13 44 20.8661911116 +66 37 17.637144064   16.84 16.62     ~ 33 0
30 SDSS J134427.10+663705.2 * 13 44 27.1015892158 +66 37 05.340053353           ~ 1 0
31 ClG J1504-0248 ClG 15 04 07.4 -02 48 15           ~ 154 0
32 2MASX J15040752-0248161 Sy1 15 04 07.519415 -02 48 16.65402   18.53 18.08     ~ 45 1
33 ICRF J150506.4+032630 Sy1 15 05 06.47715917 +03 26 30.8126616   19.02 18.62 17.72   ~ 202 1
34 SDSS J150521.92+014149.8 SyG 15 05 21.921 +01 41 49.75           ~ 2 0
35 4C -05.64 QSO 15 10 53.59142086 -05 43 07.4173767   17.44 17.21     ~ 195 1
36 4C 00.56 BLL 15 16 40.21905831 +00 15 01.9089633   17.28 16.64 10.53   ~ 168 1
37 QSO B1535+004 QSO 15 38 15.95307868 +00 19 05.3242162     18.80 18.8   ~ 31 0
38 2MASS J15391116+0026008 Sy1 15 39 11.1539 +00 26 00.800   18.90 18.47     ~ 24 0
39 SDSS J162332.27+284128.7 * 16 23 32.256 +28 41 28.75           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.11.30-22:22:29

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