Comments and Submissions:
AGNmass (at) astro.gsu.edu


Citations should acknowledge
the original data papers
Acknowledging the Database
The AGN Black Hole Mass Database


Image Credit: NASA/JPL-Caltech


< f > :
 5.5 (+/- 1.8)
  Onken+04
 5.1 (+/- 1.3)
  Park+12
 4.8 (+/- 1.7)
  Batiste+17
 4.3 (+/- 1.1)
  Grier+13
 2.8 (+/- 0.6)
  Graham+11
 Other
MBH calculated using < f > =  4.3
Description of the black hole mass calculations

Download table of MBH values:    csv    tsv  

Note: Researchers are advised to examine the details and make their own determination of the reliability of any datasets included here.

Object log MBH
(Msun)		 RA
(hh:mm:ss.s)		 Dec
(dd:mm:ss)		 z Alternate Names
Mrk335   7.230   (+0.042/-0.044)  
  00:06:19.5  
  +20:12:10  
  0.02579   PG0003+199    
Mrk1501   8.067   (+0.119/-0.165)  
  00:10:31.0  
  +10:58:30  
  0.08934   Mrk9007   PG0007+106  
PG0026+129   8.487   (+0.096/-0.119)  
  00:29:13.6  
  +13:16:03  
  0.14200      
PG0052+251   8.462   (+0.083/-0.094)  
  00:54:52.1  
  +25:25:38  
  0.15445      
Fairall9   8.299   (+0.078/-0.116)  
  01:23:45.8  
  -58:48:21  
  0.04702      
Mrk590   7.570   (+0.062/-0.074)  
  02:14:33.5  
  -00:46:00  
  0.02639   NGC863   NGC866   NGC885
Mrk1044   ...
  02:30:05.5  
  -08:59:53  
  0.01645      
1H0323+342   ...
  03:24:41.1  
  +34:10:46  
  0.06100      
3C120   7.745   (+0.038/-0.040)  
  04:33:11.1  
  +05:21:16  
  0.03301      
IRAS 04416+1215   ...
  04:44:28.8  
  +12:21:12  
  0.08890      
H0507+164   6.876   (+0.074/-0.424)  
  05:10:45.5  
  +16:29:56  
  0.01788      
Ark120   8.068   (+0.048/-0.063)  
  05:16:11.4  
  -00:08:59  
  0.03271   Mrk1095    
MCG+08-11-011   7.288   (+0.046/-0.054)  
  05:54:53.6  
  +46:26:22  
  0.02048      
Mrk6   8.102   (+0.037/-0.041)  
  06:52:12.2  
  +74:25:37  
  0.01881      
Mrk374   7.248   (+0.192/-0.322)  
  06:59:38.1  
  +54:11:48  
  0.04263      
Mrk79   7.612   (+0.107/-0.136)  
  07:42:32.8  
  +49:48:35  
  0.02219      
SDSS J074352+271240   7.912   (+0.052/-0.048)  
  07:43:52.0  
  +27:12:40  
  0.25200      
SDSS J075051+245409   7.223   (+0.123/-0.110)  
  07:50:51.1  
  +24:54:09  
  0.40040      
SDSS J075101+291419   7.369   (+0.096/-0.143)  
  07:51:01.4  
  +29:14:19  
  0.12090      
Mrk382   ...
  07:55:25.3  
  +39:11:10  
  0.03369      
SDSS J075949+320024   7.199   (+0.161/-0.202)  
  07:59:49.5  
  +32:00:24  
  0.18790      
PG0804+761   8.735   (+0.048/-0.053)  
  08:10:58.6  
  +76:02:43  
  0.10000      
SDSS J081441+212919   7.507   (+0.228/-0.483)  
  08:14:41.9  
  +21:29:19  
  0.16260      
APM08279+5255   9.869   (+0.130/-0.123)  
  08:31:41.7  
  +52:45:18  
  3.91220      
NGC2617   6.934   (+0.113/-0.176)  
  08:35:38.8  
  -04:05:18  
  0.01421      
SDSS J083553+055317   7.200   (+0.157/-0.249)  
  08:35:53.4  
  +05:53:17  
  0.20512      
S5 0836+71   ...
  08:41:24.3  
  +70:53:42  
  2.17200      
SDSS J084533+474935   7.326   (+0.136/-0.095)  
  08:45:33.3  
  +47:49:35  
  0.30237      
PG0844+349   7.858   (+0.154/-0.230)  
  08:47:42.4  
  +34:45:04  
  0.06400      
Mrk704   7.565   (+0.070/-0.104)  
  09:18:26.0  
  +16:18:19  
  0.02863      
Mrk110   7.292   (+0.101/-0.097)  
  09:25:12.9  
  +52:17:11  
  0.03529   PG0921+525    
SDSS J093302+385228   7.049   (+0.232/-0.541)  
  09:33:02.7  
  +38:52:28  
  0.17721      
PG0934+013   6.407   (+0.113/-0.159)  
  09:37:01.0  
  +01:05:43  
  0.05034   Mrk707    
PG0953+414   8.333   (+0.082/-0.108)  
  09:56:52.4  
  +41:15:22  
  0.23410      
SDSS J100402+285535   7.570   (+0.375/-0.131)  
  10:04:02.6  
  +28:55:35  
  0.32720      
SDSS J101000+300322   7.650   (+0.273/-0.187)  
  10:10:00.7  
  +30:03:22  
  0.25643      
NGC3227   6.684   (+0.081/-0.102)  
  10:23:30.6  
  +19:51:54  
  0.00386      
Mrk142   6.294   (+0.090/-0.104)  
  10:25:31.3  
  +51:40:35  
  0.04494   PG1022+519    
NGC3516   7.399   (+0.036/-0.058)  
  11:06:47.5  
  +72:34:07  
  0.00884      
SBS1116+583A   6.558   (+0.081/-0.088)  
  11:18:57.7  
  +58:03:24  
  0.02787      
SBS1116+603   ...
  11:19:14.3  
  +60:04:57  
  2.64146      
Arp151   6.672   (+0.041/-0.046)  
  11:25:36.2  
  +54:22:57  
  0.02109   Mrk40    
NGC3783   7.079   (+0.054/-0.062)  
  11:39:01.7  
  -37:44:19  
  0.00973      
MCG+06-26-012   ...
  11:39:13.9  
  +33:55:51  
  0.03275      
SDSS J1139+3355   ...
  11:39:13.9  
  +33:55:51  
  0.03275      
UGC06728   5.858   (+0.191/-0.418)  
  11:45:16.0  
  +79:40:53  
  0.00652      
Mrk1310   6.212   (+0.071/-0.089)  
  12:01:14.3  
  -03:40:41  
  0.01956      
NGC4051   5.891   (+0.084/-0.145)  
  12:03:09.6  
  +44:31:53  
  0.00234      
NGC4151   7.374   (+0.027/-0.032)  
  12:10:32.6  
  +39:24:21  
  0.00332      
PG1211+143   ...
  12:14:17.7  
  +14:03:13  
  0.08090      
Mrk202   6.133   (+0.166/-0.173)  
  12:17:55.0  
  +58:39:35  
  0.02102      
NGC4253   6.822   (+0.050/-0.057)  
  12:18:26.5  
  +29:48:46  
  0.01293   Mrk766    
Mrk50   7.551   (+0.052/-0.063)  
  12:23:24.1  
  +02:40:45  
  0.02343      
NGC4395   5.449   (+0.130/-0.145)  
  12:25:48.8  
  +33:32:49  
  0.00106      
PG1226+023   8.839   (+0.077/-0.113)  
  12:29:06.7  
  +02:03:09  
  0.15834   3C273    
PG1229+204   7.758   (+0.175/-0.219)  
  12:32:03.6  
  +20:09:29  
  0.06301   Mrk771    
NGC4593   6.912   (+0.069/-0.068)  
  12:39:39.4  
  -05:20:39  
  0.00900   Mrk1330    
WAS61   ...
  12:42:10.6  
  +33:17:03  
  0.04351   IRAS F12397+3333    
PG1247+267   ...
  12:50:05.7  
  +26:31:08  
  2.03800      
NGC4748   6.407   (+0.110/-0.183)  
  12:52:12.4  
  -13:24:53  
  0.01463      
PG1307+085   8.537   (+0.094/-0.161)  
  13:09:47.0  
  +08:19:48  
  0.15500      
MCG-06-30-15   6.295   (+0.157/-0.237)  
  13:35:53.7  
  -34:17:44  
  0.00749      
NGC5273   6.660   (+0.125/-0.190)  
  13:42:08.3  
  +35:39:15  
  0.00362      
IC4329A   ...
  13:49:19.2  
  -30:18:34  
  0.01605      
Mrk279   7.435   (+0.099/-0.133)  
  13:53:03.4  
  +69:18:30  
  0.03045   PG1351+695    
PG1411+442   8.539   (+0.125/-0.169)  
  14:13:48.3  
  +44:00:14  
  0.08960      
NGC5548   7.692   (+0.016/-0.016)  
  14:17:59.5  
  +25:08:12  
  0.01718   Mrk1509   Mrk9027  
SBS1425+606   ...
  14:26:56.2  
  +60:25:51  
  3.19716      
PG1426+015   9.007   (+0.106/-0.164)  
  14:29:06.6  
  +01:17:06  
  0.08657   Mrk1383    
Mrk817   7.586   (+0.064/-0.072)  
  14:36:22.1  
  +58:47:39  
  0.03146   PG1434+590    
NGC5940   7.035   (+0.067/-0.073)  
  15:31:18.1  
  +07:27:28  
  0.03393   Mrk1511    
Mrk290   7.277   (+0.061/-0.061)  
  15:35:52.3  
  +57:54:09  
  0.02958   PG1534+580    
Mrk486   ...
  15:36:38.3  
  +54:33:33  
  0.03893      
Mrk493   ...
  15:59:09.6  
  +35:01:47  
  0.03133      
PG1613+658   8.339   (+0.164/-0.271)  
  16:13:57.2  
  +65:43:10  
  0.12900   Mrk876    
PG1617+175   8.667   (+0.084/-0.128)  
  16:20:11.3  
  +17:24:28  
  0.11244   Mrk877    
PG1700+518   8.786   (+0.091/-0.103)  
  17:01:24.8  
  +51:49:20  
  0.29200      
Arp102B   ...
  17:19:14.5  
  +48:58:49  
  0.02417      
3C382   8.847   (+0.084/-0.058)  
  18:35:03.4  
  +32:41:47  
  0.05787      
3C390.3   8.711   (+0.033/-0.036)  
  18:42:09.0  
  +79:46:17  
  0.05610      
1RXS J1858+4850   6.705   (+0.067/-0.081)  
  18:58:01.1  
  +48:50:23  
  0.07900   KIC011178007    
Zw229-015   6.913   (+0.075/-0.119)  
  19:05:25.9  
  +42:27:40  
  0.02788   KIC006932990    
NGC6814   7.038   (+0.056/-0.058)  
  19:42:40.6  
  -10:19:25  
  0.00521      
Mrk509   8.049   (+0.035/-0.035)  
  20:44:09.7  
  -10:43:25  
  0.03440      
PG2130+099   7.433   (+0.055/-0.063)  
  21:32:27.8  
  +10:08:19  
  0.06298   Mrk1513   Mrk9001  
NGC7469   6.956   (+0.048/-0.050)  
  23:03:15.6  
  +08:52:26  
  0.01632   Mrk1514   Mrk9003  


Table of Excluded Datasets


Description of the Black Hole Mass Calculations

Black hole masses are calculated as:

MBH = < f > R V2 / G

R is taken to be c τcent, the speed of light times the emission-line time delay measured from the centroid of the cross-correlation function around the peak, which is a measure of the light-crossing time between the broad emission line region and the (much smaller) accretion disk. V is taken to be σline,rms, the second moment of the emission line profile in the variable part of the spectrum, which is a measure of the line-of-sight velocity of the gas responding to the continuum variations. G is the gravitational constant.

The scale factor < f > is the population-average multiplicative scaling factor required to bring the M-σ* relationship for AGNs into agreement with the relationship for quiescent galaxies. Details can be found in the references provided for each determination of < f > above. The uncertainty on < f > is not included in the determination of the final mass uncertainty.

The final black hole masses provided here are the weighted averages of the individual masses determined from all the emission lines from all reverberation experiments for a specific object. The user is also presented with the black hole mass based only on measurements of Hβ on the detailed page for each object. Masses based on other emission lines or combinations of emission lines may be calculated by the user from the reverberation measurements included on the detailed page for each object. Please note that other combinations of reverberation measurements may require the adoption of different values of < f >

Please refer to the PASP article describing the database for more information.

Acknowledging the Database

Please cite the appropriate references for the reverberation campaigns and measurements. This database is simply a compilation, it does not supersede the original publications. However, if you have found this database useful, please cite the PASP article.

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Created by: S. Katz, M. Bentz
Maintained by: M. Bentz

The creation of this database was made possible through NSF CAREER grant AST-1253702 to Georgia State University.

Last full update on: 6 November 2014
Database is currently undergoing updates as of October 2021