2021A&A...654A.141L


Query : 2021A&A...654A.141L

2021A&A...654A.141L - Astronomy and Astrophysics, volume 654A, 141-141 (2021/10-1)

The origin of X-ray emission in 3CRR sources: Hints from mid-infrared Spitzer observations.

LI S.-L. and GU M.

Abstract (from CDS):


Aims. Whether X-ray emission in radio-loud (RL) active galactic nuclei (AGNs) originates from disk coronae or jets is still under debate. For example, the positive relationships in radio-quiet AGNs (such as the optical to X-ray spectral index αOX and Eddington ration λO as well as the X-ray photon index Γ and λO) are not detected in RLAGNs. We intend to further investigate this issue in this work.
Methods. A sample of 27 luminous sources (including 16 quasars and 11 high-excitation radio galaxies) was selected from the 3CRR catalog to reinvestigate the origin of X-ray emission in RLAGNs, where the X-ray and mid-infrared fluxes are observed by Chandra/XMM-Newton and Spitzer, respectively.
Results. It is found for the first time that there is a significant relationship between the mid-infrared to X-ray spectral index αIX and λIR for whole sample, while there is no relationship between αOX and λO in quasars. There are strong positive relationships between both LR - LX and LUV - LX panels, which can be well fitted by the disk-corona model. However, there is no significant relationship between Γ and λIR. The possible reason is related to the effects of the large-scale magnetic field in RLAGNs.
Conclusions. We suggest that the X-ray emission in high-excitation RLAGNs originates from a disk-corona system.

Abstract Copyright: © ESO 2021

Journal keyword(s): accretion, accretion disks - black hole physics - quasars: general - galaxies: active

Simbad objects: 28

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Number of rows : 28
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 463 2
2 3C 33.1 Sy1 01 09 44.3 +73 11 57   19.5       ~ 140 1
3 2E 437 Sy1 01 36 24.4208152464 +20 57 27.522990972   18.15 18.10     ~ 353 2
4 3C 61.1 Sy2 02 22 48.3 +86 18 51     19.0     ~ 190 1
5 3C 79.0 Sy2 03 10 00.0936589848 +17 05 58.599361932   19.54 18.75     ~ 250 3
6 ICRF J041340.3+111214 Sy1 04 13 40.34100355 +11 12 14.7860055   18.96 18.01     ~ 312 2
7 3C 175 Sy1 07 13 02.4220971768 +11 46 16.269484656   17.06 16.60     ~ 260 1
8 3C 181.0 Sy2 07 28 10.2171164616 +14 37 36.565176324   19.35 18.92     ~ 160 2
9 3C 196 Sy1 08 13 36.0561170112 +48 13 02.644966020   18.36 17.79     ~ 532 2
10 3C 204 QSO 08 37 45.0013678200 +65 13 35.305376376   18.76 18.21     ~ 173 1
11 ICRF J084047.5+131223 Sy1 08 40 47.58842599 +13 12 23.5637506   18.58 18.15 17.622   ~ 410 1
12 3C 208 QSO 08 53 08.6093021736 +13 52 54.845406984   17.76 17.42     ~ 246 1
13 3C 212 QSO 08 58 41.44702653 +14 09 44.7622845   19.96 19.06     ~ 245 1
14 3C 219 Sy1 09 21 08.6258123424 +45 38 57.358202856   19.56 18.69     ~ 398 2
15 3C 234.0 Sy1 10 01 49.5227371368 +28 47 08.943487440   18.21 17.27     ~ 417 1
16 4C 12.37 QSO 10 42 44.6052783816 +12 03 31.263917976   18.03 17.77     ~ 423 2
17 NAME OKM2018 SWIFT J1104.8+7689 Sy1 11 04 13.8611496720 +76 58 58.194549084   15.70 15.72 15.40   ~ 528 1
18 3C 254 QSO 11 14 38.7251836992 +40 37 20.329281156   17.62 17.42     ~ 314 2
19 ICRF J113957.0+654749 Sy1 11 39 57.0254367168 +65 47 49.483232880   16.50 16.32     ~ 507 1
20 ICRF J120913.6+433920 Sy1 12 09 13.6108333200 +43 39 20.916497268   18.81 18.24     ~ 232 1
21 3C 275.1 QSO 12 43 57.6491122968 +16 22 53.395049244   19.23 19.00     ~ 299 1
22 3C 300 SyG 14 22 59.85648 +19 35 36.7152   19.66 18.73     ~ 192 2
23 2E 3648 Sy1 16 20 21.8185395384 +17 36 23.952361176   16.53 16.41 20.5   ~ 405 2
24 ICRF J182931.7+484446 Sy1 18 29 31.7809732968 +48 44 46.160168892   17.05 16.81 16.860   ~ 668 1
25 ICRF J183503.3+324146 Sy1 18 35 03.3896172576 +32 41 46.855964616   16.50 15.39 10.50   ~ 621 1
26 ICRF J184208.9+794617 Sy1 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1277 0
27 3C 452 Sy2 22 45 48.7616172744 +39 41 15.906782184   17.60 16.56     ~ 360 1
28 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 2730 2

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2023.02.08-02:42:45

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