2004A&A...424..793W


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.14CEST13:34:26

2004A&A...424..793W - Astronomy and Astrophysics, volume 424, 793-798 (2004/9-4)

Black hole mass estimation using a relation between the BLR size and emission line luminosity of AGN.

WU X.-B., WANG R., KONG M.Z., LIU F.K. and HAN J.L.

Abstract (from CDS):

An empirical relation between the broad line region (BLR) size and optical continuum luminosity is often adopted to estimate the BLR size and then the black hole mass of AGNs. However, optical luminosity may not be a good indicator of photoionizing luminosity for extremely radio-loud AGNs because the jets usually contribute significantly to the optical continuum. Therefore, the black hole masses derived for blazar-type AGNs with this method are probably overestimated. Here we first derived a tight empirical relation between the BLR size and the Hβ emission line luminosity, R(light-days)=24.05(LHβ/1042ergs/s)0.68, from a sample of 34 AGNs with the BLR size estimated with the reverberation mapping technique. Then we applied this relation to estimate the black hole masses of some AGNs and found that for many extremely radio-loud AGNs the black hole masses obtained with the R-LHβ relation are systematically lower than those derived previously with the R-L5100Å relation, while for radio-quiet and slightly radio-loud AGNs the results obtained with these two methods are almost the same. The difference of black hole masses estimated with these two relations increases with the radio-loudness for extremely radio-loud AGNs, which is consistent with the fact that their equivalent widths of the Hβ emission line become smaller at greater radio-loudness. If the small Hβ equivalent widths of extremely radio-loud AGNs are indeed caused by the beaming effect, we argue that the optical emission line luminosity may be a better tracer of ionizing luminosity for blazar-type AGNs and the black hole masses derived with the R-LHβ relation are probably more accurate.

Abstract Copyright:

Journal keyword(s): black hole physics - galaxies: active - galaxies: nuclei - quasars: general - quasars: emission lines

Simbad objects: 33

goto Full paper

goto View the reference in ADS

Number of rows : 33

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Mrk 335 Sy1 00 06 19.5371542746 +20 12 10.617456059   14.19 13.85     ~ 1097 0
2 2E 93 Sy1 00 29 13.7012280721 +13 16 03.946876800   15.70 15.41     ~ 391 0
3 2E 217 Sy1 00 54 52.1185254329 +25 25 38.983464017     15.42     ~ 336 0
4 NGC 863 Sy1 02 14 33.5610949475 -00 46 00.180128181   14.48 13.81 17.9   ~ 576 0
5 Mrk 1506 Sy1 04 33 11.0958197353 +05 21 15.617543663   15.72 15.05 10.08   ~ 1845 2
6 Mrk 1095 Sy1 05 16 11.4093760763 -00 08 59.158774578   14.30 13.92     ~ 780 1
7 Mrk 79 Sy1 07 42 32.8212778143 +49 48 34.787882233   14.74 14.27     ~ 634 1
8 2MAXI J0808+757 Sy1 08 10 58.6637281539 +76 02 42.449416413   15.03 14.71     ~ 413 0
9 Ton 951 Sy1 08 47 42.4487014731 +34 45 04.483113429   14.83 14.50     ~ 418 0
10 Mrk 110 Sy1 09 25 12.8479868736 +52 17 10.386808297   16.82 16.41     ~ 513 0
11 PG 0953+414 Sy1 09 56 52.3930851607 +41 15 22.212153978 14.710 15.611 15.546 15.294 14.720 ~ 414 0
12 NGC 3227 GiP 10 23 30.57 +19 51 54.3   12.61 11.79     ~ 1536 2
13 NGC 3783 Sy1 11 39 01.7095761008 -37 44 19.008597647   12.46 13.43 11.33 12.1 ~ 1489 0
14 NGC 4051 Sy1 12 03 09.6098828919 +44 31 52.693714606   11.08 12.92 9.94   ~ 1997 1
15 NGC 4151 Sy1 12 10 32.5771747733 +39 24 21.057727323   12.18 11.48     ~ 3387 2
16 PB 3894 Sy1 12 14 17.6737003918 +14 03 13.182526431   14.46 14.19     ~ 741 0
17 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5327 1
18 Mrk 771 Sy1 12 32 03.6224248141 +20 09 29.495841579   15.57 15.30     ~ 434 0
19 2E 2978 Sy1 13 09 47.0029670396 +08 19 48.215010428   16.04 15.89     ~ 343 0
20 ESO 445-50 Sy1 13 49 19.2607281800 -30 18 34.224136831   13.81 13.66 12.18   ~ 734 0
21 Mrk 279 Sy1 13 53 03.4356451470 +69 18 29.410672989   15.15 14.46     ~ 695 0
22 2MASS J14134834+4400141 Sy1 14 13 48.3307115344 +44 00 14.005465999   14.99 14.99     ~ 347 0
23 NGC 5548 Sy1 14 17 59.5401093128 +25 08 12.600227883   14.35 13.73     ~ 2399 0
24 Mrk 1383 Sy1 14 29 06.5718492666 +01 17 06.155981953   15.21 14.87     ~ 408 0
25 Mrk 817 Sy1 14 36 22.0820075123 +58 47 39.395406826   14.19 13.79     ~ 426 0
26 Mrk 876 Sy1 16 13 57.1791807197 +65 43 09.953889666   16.03 15.49     ~ 514 0
27 Mrk 877 Sy1 16 20 11.2800014833 +17 24 27.514065981   15.79 15.39     ~ 247 0
28 IRAS 17002+5153 Sy1 17 01 24.8267412895 +51 49 20.447125726   15.49 15.12     ~ 354 0
29 6C 170404+604844 Sy1 17 04 41.3742389551 +60 44 30.522600868   15.65 15.40 15.30   ~ 724 1
30 ICRF J184208.9+794617 Sy1 18 42 08.9910523393 +79 46 17.129210139   16.06 15.38     ~ 1212 0
31 Mrk 509 Sy1 20 44 09.7504131334 -10 43 24.724854084   13.35 13.12 10.7   ~ 1132 0
32 Mrk 1513 Sy1 21 32 27.8163185343 +10 08 19.250705656   14.92 14.64     ~ 541 0
33 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1892 3

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2004A&A...424..793W and select 'bookmark this link' or equivalent in the popup menu


2020.08.14-13:34:26

© Université de Strasbourg/CNRS

    • Contact