2020MNRAS.495..614P

Query : 2020MNRAS.495..614P

2020MNRAS.495..614P - Mon. Not. R. Astron. Soc., 495, 614-620 (2020/June-2)

Determination of magnetic field strength on the event horizon of supermassive black holes in active galactic nuclei.

PIOTROVICH M.Y., MIKHAILOV A.G., BULIGA S.D. and NATSVLISHVILI T.M.

Abstract (from CDS):

We estimated the magnetic field strength at the event horizon for a sample of supermassive black holes (SMBHs) in active galactic nuclei (AGNs). Our estimates were made using the values of the inclination angles of the accretion disc to the line of sight, which we obtained previously from spectropolarimetric observations in the visible spectrum. We also used published values of full width at half-maximum of spectral line Hβ from broad-line region, masses of SMBHs, and luminosity of AGNs at 5100 Å. In addition, we used the literature data on the spins of SMBHs obtained from their X-ray spectra. Our estimates showed that the magnetic field strength at the event horizon of the majority of SMBHs in AGNs range from several to tens of kG and have mean values of about 104 G. At the same time, for individual objects, the fields are significantly larger - of the order of hundreds kG or even 1 MG.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - magnetic fields - polarization - quasars: supermassive black holes

Simbad objects: 49

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Number of rows : 49
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 Mrk 335 Sy1 00 06 19.5372339024 +20 12 10.617404076   14.19 13.85     ~ 1344 0
2 Mrk 1501 Bla 00 10 31.00590413 +10 58 29.5042981   15.96 15.40 12.22   ~ 763 1
3 LEDA 1790 Sy1 00 29 13.7012449608 +13 16 03.947778264   15.70 15.41     ~ 474 0
4 Z 435-3 Sy1 00 47 19.3947899808 +14 42 12.536792244   17.50 16.95     ~ 106 0
5 Mrk 1148 Sy1 00 51 54.7633670088 +17 25 58.508879484   16.44 15.96     ~ 176 0
6 [OKM2018] SWIFT J0056.9+1472 Sy1 00 57 09.9306975096 +14 46 10.142054004   16.56 16.29     ~ 167 0
7 ESO 113-45 Sy1 01 23 45.7631533440 -58 48 20.808928944   14.08 13.83 13.34   ~ 965 0
8 Z 459-57 Sy1 01 27 32.5217343720 +19 10 43.839069600   14.89 14.22     ~ 333 0
9 Mrk 1014 Sy1 01 59 50.2534701768 +00 23 40.864244784   16.08 15.87     ~ 606 0
10 Z 387-34 Sy1 02 06 15.9896281128 -00 17 29.221733688   15.90 15.50 10.3   ~ 405 0
11 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
12 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
13 Z 395-23 Sy1 05 16 11.4092471904 -00 08 59.157166920   14.30 13.92     ~ 953 1
14 LEDA 88588 Sy1 07 08 41.4886614696 -49 33 06.308921700   16.02 15.7 12.7   ~ 566 0
15 Z 235-30 Sy1 07 42 32.8210670808 +49 48 34.783809768   14.74 14.27     ~ 769 1
16 LEDA 3095776 Sy1 07 52 45.5992578360 +26 17 35.772291780   17.14 16.94     ~ 38 0
17 2MASS J08105865+7602424 Sy1 08 10 58.6641543864 +76 02 42.450451260   15.03 14.71     ~ 508 0
18 2MASX J08394965+4847014 Sy1 08 39 49.6528412976 +48 47 01.457432268   17.16 16.70     ~ 38 0
19 Ton 951 Sy1 08 47 42.4485615096 +34 45 04.482515304   14.83 14.50     ~ 487 0
20 Mrk 110 Sy1 09 25 12.8479065576 +52 17 10.386311208   16.82 16.41     ~ 681 1
21 Ton 1057 Sy1 09 25 54.7145627448 +19 54 05.064888348   16.02 15.89     ~ 187 0
22 Z 62-35 Sy1 09 26 03.2694421008 +12 44 03.732389268   15.15 14.60     ~ 359 0
23 PG 0953+414 Sy1 09 56 52.3931554992 +41 15 22.211247636 14.710 15.611 15.546 15.294 14.720 ~ 472 0
24 Mrk 142 Sy1 10 25 31.2786898344 +51 40 34.867889004   16.33 16.12     ~ 330 0
25 Ton 1388 Sy1 11 19 08.6786220240 +21 19 17.987085948   14.91 14.80     ~ 492 0
26 NGC 3783 Sy1 11 39 01.7096819040 -37 44 19.009642992   12.46 13.43 11.33 12.1 ~ 1765 1
27 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2270 1
28 [OKM2018] SWIFT J1231.3+7073 Sy1 12 31 36.5590509432 +70 44 14.352161820     15.66     ~ 54 0
29 Ton 1565 Bla 13 12 17.7526981968 +35 15 21.086467128   15.45 15.64 14.2   ~ 292 1
30 MCG-06-30-015 Sy1 13 35 53.7691256160 -34 17 44.160716796   13.89 13.61 8.9   ~ 1559 0
31 Z 336-28 Sy1 13 53 03.4348964112 +69 18 29.410910460   15.15 14.46     ~ 812 1
32 2MASS J13563279+2103523 Sy1 13 56 32.7981405816 +21 03 52.378155576   15.85 17.07     ~ 104 0
33 Ton 202 Sy1 14 27 35.6076948744 +26 32 14.541190476   15.96 16.00     ~ 315 0
34 Z 296-15 Sy1 14 36 22.0820611632 +58 47 39.394934844   14.19 13.79     ~ 592 0
35 Mrk 841 Sy1 15 04 01.1935384104 +10 26 15.780409692   14.50 14.27     ~ 701 0
36 ICRF J154743.5+205216 Sy1 15 47 43.5376371336 +20 52 16.612810320   16.80 16.69 15.70   ~ 521 1
37 Mrk 876 Sy1 16 13 57.1795021224 +65 43 09.952685328   16.03 15.49     ~ 620 0
38 IRAS 17002+5153 Sy1 17 01 24.8265469104 +51 49 20.447878836   15.49 15.12     ~ 401 0
39 8C 1704+608 Bla 17 04 41.3742408840 +60 44 30.520617000   15.65 15.40 15.30   ~ 782 1
40 3C 390.3 Bla 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1381 1
41 2MASS J21145258+0607423 Sy1 21 14 52.5774985320 +06 07 42.433198104   16.06 15.77     ~ 227 0
42 IRAS 21262+5643 Sy1 21 27 45.3941483856 +56 56 34.915920720       16.6   ~ 186 0
43 Mrk 1513 Sy1 21 32 27.8162556672 +10 08 19.252365396   14.92 14.64     ~ 651 0
44 QSO B2209+184 BLL 22 11 53.8888927344 +18 41 49.861248288   16.09 15.44 11.96   ~ 187 2
45 Z 428-65 Sy1 22 17 12.2637639888 +14 14 20.917852980   15.02 14.66     ~ 371 0
46 4C 11.72 BLL 22 54 10.4214226080 +11 36 38.748083760   16.02 15.82     ~ 351 1
47 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
48 LEDA 70504 Sy1 23 07 02.9147133288 +04 32 57.101475624   16.32 15.50     ~ 135 0
49 4C 09.72 BLL 23 11 17.7546073272 +10 08 15.756513972   16.15 16.00     ~ 203 1

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