2020A&A...640A..39C


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET08:05:05

2020A&A...640A..39C - Astronomy and Astrophysics, volume 640A, 39-39 (2020/8-1)

Estimating black hole masses: Accretion disk fitting versus reverberation mapping and single epoch.

CAMPITIELLO S., CELOTTI A., GHISELLINI G. and SBARRATO T.

Abstract (from CDS):

We selected a sample of 28 Type 1 active galactic nuclei for which a black hole mass has been inferred using the reverberation mapping technique and single epoch scaling relations. All 28 sources show clear evidence of the "Big Blue Bump" in the optical-UV band whose emission is produced by an accretion disk (AD) around a supermassive black hole. We fitted the spectrum of these sources with the relativistic thin AD model KERRBB in order to infer the black hole masses and compared them with those from Reverberation mapping and Single epoch methods, discussing the possible uncertainties linked to such a model by quantifying their weight on our results. We find that for the majority of the sources, KERRBB is a good description of the AD emission for a wide wavelength range. The overall uncertainty on the black hole mass estimated through the disk fitting procedure is ∼0.45dex (which includes the uncertainty on fitting parameters such as e.g., spin and viewing angle), comparable to the systematic uncertainty of reverberation mapping and single epoch methods; however, such an uncertainty can be ≤0.3dex if one of the parameters of the fit is well constrained. Although all of the estimates are affected by large uncertainties, the masses inferred using the three methods are compatible if the dimensionless scale factor f (linked to the unknown kinematics and geometry of the Broad Line Region) is assumed to be larger than one. For the majority of the sources, the comparison between the results coming from the three methods favors small spin values. To check the goodness of the KERRBB results, we compared them with those inferred with other models, such as AGNSED, a model that also accounts for the emission originating from an X-ray corona: using two sources with a good data coverage in the X band, we find that the masses estimated with the two models differ at most by a factor of ∼0.2dex.

Abstract Copyright: © ESO 2020

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

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 - 2021
#notes
1 Mrk 335 Sy1 00 06 19.5371542746 +20 12 10.617456059   14.19 13.85     ~ 1107 0
2 Mrk 1501 Sy1 00 10 31.0058529490 +10 58 29.505989476   15.96 15.40 12.22   ~ 651 0
3 2E 93 Sy1 00 29 13.7012280721 +13 16 03.946876800   15.70 15.41     ~ 396 0
4 2E 217 Sy1 00 54 52.1185254329 +25 25 38.983464017     15.42     ~ 340 0
5 ESO 113-45 Sy1 01 23 45.7630391439 -58 48 20.811630442   14.08 13.83 13.34   ~ 781 0
6 NGC 863 Sy1 02 14 33.5610949475 -00 46 00.180128181   14.48 13.81 17.9   ~ 585 0
7 Mrk 1044 Sy1 02 30 05.5224714146 -08 59 53.208069457   14.74 14.29 13.981 13.585 ~ 223 0
8 Mrk 1095 Sy1 05 16 11.4093760763 -00 08 59.158774578   14.30 13.92     ~ 792 1
9 2MAXI J0808+757 Sy1 08 10 58.6637281539 +76 02 42.449416413   15.03 14.71     ~ 417 0
10 4C 71.07 QSO 08 41 24.36526906 +70 53 42.1730054     16.5 16.8   ~ 702 1
11 Ton 951 Sy1 08 47 42.4487014731 +34 45 04.483113429   14.83 14.50     ~ 423 0
12 PG 0953+414 Sy1 09 56 52.3930851607 +41 15 22.212153978 14.710 15.611 15.546 15.294 14.720 ~ 418 0
13 Mrk 142 Sy1 10 25 31.2788890554 +51 40 34.868795739   16.33 16.12     ~ 237 0
14 NGC 3783 Sy1 11 39 01.7095761008 -37 44 19.008597647   12.46 13.43 11.33 12.1 ~ 1496 0
15 NGC 4151 Sy1 12 10 32.5771747733 +39 24 21.057727323   12.18 11.48     ~ 3412 2
16 PB 3894 Sy1 12 14 17.6737003918 +14 03 13.182526431   14.46 14.19     ~ 746 0
17 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5367 1
18 LB 19 QSO 12 50 05.726 +26 31 07.51   16.12 15.92     ~ 190 0
19 2E 2978 Sy1 13 09 47.0029670396 +08 19 48.215010428   16.04 15.89     ~ 347 0
20 2MASS J14134834+4400141 Sy1 14 13 48.3307115344 +44 00 14.005465999   14.99 14.99     ~ 352 0
21 NGC 5548 Sy1 14 17 59.5401093128 +25 08 12.600227883   14.35 13.73     ~ 2424 0
22 Mrk 1383 Sy1 14 29 06.5718492666 +01 17 06.155981953   15.21 14.87     ~ 413 0
23 Mrk 290 Sy1 15 35 52.4036488200 +57 54 09.516647866   15.55 15.27     ~ 457 0
24 Mrk 877 Sy1 16 20 11.2800014833 +17 24 27.514065981   15.79 15.39     ~ 251 0
25 IRAS 17002+5153 Sy1 17 01 24.8267412895 +51 49 20.447125726   15.49 15.12     ~ 358 0
26 Mrk 509 Sy1 20 44 09.7504131334 -10 43 24.724854084   13.35 13.12 10.7   ~ 1140 0
27 Mrk 1513 Sy1 21 32 27.8163185343 +10 08 19.250705656   14.92 14.64     ~ 547 0
28 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1907 3

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2020.12.02-08:05:05

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