2017ApJ...849...34O


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.16CEST00:46:43

2017ApJ...849...34O - Astrophys. J., 849, 34-34 (2017/November-8)

Correlation between X-ray and radio absorption in compact radio galaxies.

OSTORERO L., MORGANTI R., DIAFERIO A., SIEMIGINOWSKA A., STAWARZ L., MODERSKI R. and LABIANO A.

Abstract (from CDS):

Compact radio galaxies with a GHz-peaked spectrum (GPS) and/or compact-symmetric-object (CSO) morphology (GPS/CSOs) are increasingly detected in the X-ray domain. Their radio and X-ray emissions are affected by significant absorption. However, the locations of the X-ray and radio absorbers are still debated. We investigated the relationship between the column densities of the total (NH) and neutral (NHI) hydrogen to statistically constrain the picture. We compiled a sample of GPS/CSOs including both literature data and new radio data that we acquired with the Westerbork Synthesis Radio Telescope for sources whose X-ray emission was either established or under investigation. In this sample, we compared the X-ray and radio hydrogen column densities, and found that NH and NHI display a significant positive correlation with NHI ∝ NHb, where b = 0.47 and b = 0.35, depending on the subsample. The NH-NHI correlation suggests that the X-ray and radio absorbers are either co-spatial or different components of a continuous structure. The correlation displays a large intrinsic spread that we suggest to originate from fluctuations, around a mean value, of the ratio between the spin temperature and the covering factor of the radio absorber, Ts/Cf.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: active - galaxies: ISM - galaxies: jets - radio lines: galaxies - radio lines: ISM - X-rays: galaxies - X-rays: galaxies

Simbad objects: 30

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Number of rows : 30

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 ICRF J002225.4+001456 BiC 00 22 25.42593021 +00 14 56.1613786   21.1       ~ 98 1
2 ICRF J002914.2+345632 AGN 00 29 14.24246572 +34 56 32.2471186   20.2       ~ 114 1
3 NVSS J003808+230327 rG 00 38 08.10240 +23 03 28.4400           ~ 25 1
4 QSO B0108+388 Bla 01 11 37.31680 +39 06 28.1039     22 22.000   ~ 231 1
5 4C 31.04 rG 01 19 35.00346907 +32 10 50.0583319   16 14.5     ~ 207 1
6 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2429 2
7 PKS 0428+205 rG 04 31 03.76136151 +20 37 34.2649550   22.174   19.085   ~ 163 1
8 ICRF J050321.1+020304 Sy2 05 03 21.19717510 +02 03 04.6763382   22.500 21.350 20.682   ~ 170 1
9 ICRF J054236.1+495107 Sy1 05 42 36.13789843 +49 51 07.2337251   18.45 17.80 17.210   ~ 1230 1
10 QSO B0710+439 QSO 07 13 38.16412910 +43 49 17.2071530   20.7       ~ 221 0
11 ICRF J094336.9-081930 LIN 09 43 36.94438939 -08 19 30.8134537   19.401   18.100   ~ 105 2
12 ICRF J103507.0+562846 Sy2 10 35 07.03999665 +56 28 46.7960909   20.2 21.244 20.200   ~ 167 1
13 ICRF J112027.8+142054 G 11 20 27.80726 +14 20 54.9914   20 20.935 20.100   ~ 137 1
14 4C 32.44 QSO 13 26 16.51232948 +31 54 09.5144454   21.367 19.822 18.882   ~ 151 1
15 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3613 1
16 ICRF J134733.3+121724 Sy2 13 47 33.36161542 +12 17 24.2402572   19.28 18.44 15.718   ~ 518 3
17 ICRF J140028.6+621038 Sy2 14 00 28.64868162 +62 10 38.5884658   22.137 20.373 19.530   ~ 155 1
18 QSO B1404+286 BLL 14 07 00.3933203928 +28 27 14.695133019   16.13 15.35 10.29   ~ 656 2
19 ICRF J151141.2+051809 Sy1 15 11 41.26654675 +05 18 09.2597600   18.49 17.80 13.95   ~ 77 0
20 QSO B1549-790 QSO 15 56 58.86989203 -79 14 04.2815029   18.80 18.800 17.84   ~ 172 1
21 ICRF J160913.3+264129 Sy2 16 09 13.32076181 +26 41 29.0362080   19       ~ 200 0
22 NGC 6328 QSO 17 23 41.02938963 -65 00 36.6113150   13.17 13.2 11.45 12.2 ~ 196 1
23 NVSS J184535+354116 rG 18 45 35.10885925 +35 41 16.7265084   19.830   21.900   ~ 52 0
24 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 918 1
25 NVSS J194431+544807 rG 19 44 31.51263486 +54 48 07.0629378   21.732   18.591   ~ 57 1
26 QSO B1946+708 Bla 19 45 53.51992731 +70 55 48.7321708   18.726 16.70 17.199   ~ 124 2
27 PKS 2008-068 rG 20 11 14.21582849 -06 44 03.5554174     17.2     ~ 74 1
28 ICRF J202206.6+613658 Sy2 20 22 06.68174818 +61 36 58.8047862     19.5 17.58   ~ 284 1
29 ICRF J213032.8+050217 G 21 30 32.87739291 +05 02 17.4741657     23.4     ~ 138 1
30 ICRF J235509.4+495008 Sy2 23 55 09.45814510 +49 50 08.3395036   21.101   18.400   ~ 243 1

    Equat.    Gal    SGal    Ecl

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2019.10.16-00:46:43

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