2005ApJ...630..122G


Query : 2005ApJ...630..122G

2005ApJ...630..122G - Astrophys. J., 630, 122-129 (2005/September-1)

Estimating black hole masses in active galaxies using the Hα emission line.

GREENE J.E. and HO L.C.

Abstract (from CDS):

It has been established that virial masses for black holes in low-redshift active galaxies can be estimated from measurements of the optical continuum strength and the width of the broad Hβ line. Under various circumstances, however, both of these quantities can be challenging to measure or can be subject to large systematic uncertainties. To mitigate these difficulties, we present a new method for estimating black hole masses. From analysis of a new sample of broad-line active galactic nuclei, we find that Hα luminosity scales almost linearly with optical continuum luminosity and that a strong correlation exists between Hα and Hβ line widths. These two empirical correlations allow us to translate the standard virial mass system to a new one based solely on observations of the broad Hα emission line.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Galaxies: Jets - Galaxies: Nuclei - Galaxies: Seyfert - Galaxies: Quasars: General

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 Mrk 1502 Sy1 00 53 34.9331107632 +12 41 35.929269132   14.41 14.03     ~ 1109 1

Query : 2005ApJ...630..122G

Basic data :
Mrk 1502 -- Seyfert 1 Galaxy
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
G (2016A&A,Mrk,...), QSO (2016ApJ,QSO,...), IR (AKARI,IRAS,...), X (1AXG,2E,...), AGN (2016AJ,[HB91]), UV (PG,UVQS), Sy1 (2012ApJ), V* (AAVSO), * (Gaia), blu (PHL), gam (INTREF)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
00 53 34.9331107632 +12 41 35.929269132 (Optical) [ 0.0339 0.0232 90 ] A 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
00 50 57.8091091715 +12 25 19.669844480 [ 0.0339 0.0232 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
123.7485225871663 -50.1750339656792 [ 0.0339 0.0232 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
0.172 0.105 [0.048 0.032 90] A 2020yCat.1350....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) 17449 [~] / z(emission) 0.060 [~] / cz 17988 [~]
   (Opt) D 2016ApJ...818..113N
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type:
S0a D ~
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin):
0.48 0.35 156 (Opt) D 2003A&A...412...45P
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (11) :
B 14.41 [~] D 2010A&A...518A..10V
V 14.03 [~] D 2010A&A...518A..10V
G 14.277195 [0.004148] C 2020yCat.1350....0G
J 12.103 [0.030] C 2006AJ....131.1163S
H 11.105 [0.035] C 2006AJ....131.1163S
K 10.158 [0.023] C 2006AJ....131.1163S
u (AB) 15.323 [0.006] B 2012ApJS..203...21A
g (AB) 14.621 [0.004] B 2012ApJS..203...21A
r (AB) 14.171 [0.004] B 2012ApJS..203...21A
i (AB) 14.275 [0.002] B 2012ApJS..203...21A
z (AB) 13.690 [0.005] B 2012ApJS..203...21A
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
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Some important notes on this object about identifications and objects associations.
notes:


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (53) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

Mrk 1502 NFGS 6 TIC 414808160 [VV2003] J005334.9+124136
AKARI-IRC-V1 J0053349+124135 PG 0050+124 UGC 545 [VV2006] J005334.9+124136
1AXG J005334+1241 PG 0050+12 UVQS J005334.93+124135.9 [VV2010] J005334.9+124136
CGPG 0051.0+1225 PHL 3072 UZC J005334.9+124136 [VV96] J005334.9+124136
2E 209 PSCz Q00509+1225 WISEA J005334.93+124135.9 [VV98] J005334.9+124136
2E 0050.9+1225 QSO B0050+124 WISE J005334.93+124136.0 [WTW94] 0050+124
1ES 0050+12.4 QSO B0050+1225 2XMM J005334.9+124136 [WZX98] 00509+1225
INTREF 52 QSO B0051+124 ZW I 1 [ZEH2003] RX J0053.5+1241 2
IRAS 00509+1225 QSO J0053+1241 Z 0050.9+1225 AAVSO 0048+12
IRAS F00509+1225 RBS 129 [BDW2002] q0050+1225 Gaia DR3 2776751268021474816
LEDA 3151 RX J0053.5+1241 [DML87] 18 Gaia DR2 2776751268021474816
2MASS J00533492+1241359 1RXS J005335.3+124137 [HB91] 0050+124
2MASSI J0053349+124135 SDSS J005334.93+124135.9 [HVG99b] 00510+1225
2MASX J00533495+1241352 SHELS 013.395554+12.693325 [VV2000] J005334.9+124136

References (1109 between 1850 and 2022) (Total 1109)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 12    PM : 2   

   

Observing logs


herschel : 12    ISO : 17    IUE : 12    XMM : 1   

   


External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : Mrk 1502

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2022.09.28-03:03:58

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