J/AJ/131/1236 Central black holes of spiral galaxies (Dong+, 2006)
Low-luminosity active galaxies and their central black holes.
Dong X.Y., De Robertis M.M.
<Astron. J., 131, 1236-1252 (2006)>
=2006AJ....131.1236D 2006AJ....131.1236D
ADC_Keywords: Galaxies, IR ; Active gal. nuclei ; Spectroscopy ;
Galaxies, photometry
Keywords: galaxies: active - galaxies: bulges -
galaxies: fundamental parameters - galaxies: photometry -
infrared: galaxies
Abstract:
Central black hole masses for 117 spiral galaxies representing
morphological stages S0/a through Sc and taken from the large
spectroscopic survey of Ho et al. (Cat. J/ApJS/112/315) are derived
using Ks-band data from the Two Micron All Sky Survey. Black hole
masses are found using a calibrated black hole-Ks bulge luminosity
relation, while bulge luminosities are measured by means of a
two-dimensional bulge-disk decomposition routine.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 58 118 Emission-line and host-galaxy parameters
table3.dat 75 136 GALFIT results
table4.dat 42 117 The estimated BH mass
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See also:
J/ApJS/112/315 : Spectroscopic parameters of Seyfert nuclei (Ho+ 1997)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/51 : Revised Shapley-Ames Catalog of Bright Galaxies
(Sandage+, 1981)
VII/155 : Third Reference Cat. of Bright Galaxies (RC3)
(de Vaucouleurs+ 1991)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- Sample [ABC] Sample group (G1)
3- 10 A8 --- Name Galaxy name (1)
12- 16 F5.2 [10-7W] logLHa ? Luminosity of the narrow Hα
component in units of erg/s
17 A1 --- f_logLHa [Lubc] Large uncertainty indicator (2)
19- 21 I3 km/s FWHM ? FWHM of [NII](6583Å)
22 A1 --- f_FWHM [Lubc] Large uncertainty indicator (2)
24- 28 F5.2 --- Ha/Hb ? Reddening corrected Hα/Hβ ratio
29 A1 --- f_Ha/Hb [Lubc] Large uncertainty indicator (2)
31- 35 F5.2 --- [OIII]/Hb ? The [OIII]/Hβ ratio (3)
36 A1 --- f_[OIII]/Hb [Lubc] Large uncertainty indicator (2)
38- 41 F4.2 --- [NII]/Ha ? The [NII]/Hα ratio (3)
42 A1 --- f_[NII]/Ha [Lubc] Large uncertainty indicator (2)
44- 46 F3.1 --- TType Hubble morphological stage index
48- 51 F4.1 Mpc Dist Distance
53- 56 I4 km/s DelV ? Rotational velocity amplitude (4)
58 A1 --- f_DelV Flag on DelV (5)
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Note (1): Emission-line and host-galaxy parameters were taken from Ho et al.
(1997, Cat. J/ApJS/112/315). Hα and Hβ refer to the
narrow emission-line components.
Note (2): Flag, defined as follows:
L = a 3σ lower limit;
u = a 3σ upper limit;
b = uncertainty of ±30%-50%;
c = highly uncertain value with probable errors of ±100%.
Note (3): Dereddened (Galactic and internal) emission-line intensity ratios.
Note (4): Corrected for inclination.
Note (5): Flag on DelV, defined as follows:
a = lower limit because the inclination is not available;
b = suggests the inclination correction uncertain and is set to 30°;
c = possibly confused by another nearby galaxy;
d = the velocity width was measured at 50% of the peak of the HI profile.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1 A1 --- Sample [ABC] Sample group (G1)
3- 10 A8 --- Name Galaxy name
12- 17 A6 --- Sersic [Sersic] Sersic profile function used
19- 23 F5.2 mag magBul ? Bulge magnitude (Sersic profile) (1)
25- 29 F5.2 arcsec Re ? Bulge half-light effective radius
(Sersic profile) (2)
31- 34 F4.2 --- n ? Sersic index
36- 38 A3 --- Exp [exp] Exponential profile function used
40- 44 F5.2 mag magDisk ? Disk magnitude (exponential profile) (1)
46- 50 F5.2 arcsec Scl ? Disk scale length (exponential profile) (2)
52- 56 F5.2 --- chi2 ? The model χ2
58- 63 F6.3 mag mag2M ? Total 2MASS magnitude (3)
65- 69 F5.2 mag magMod ? Total model magnitude
71- 75 F5.1 % resFlux ? Residual flux (4)
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Note (1): Bulge magnitude with the average formal error about 1.4% or
the disk magnitude with the average formal error about 0.7%.
Note (2): Half-light effective radius for the bulge component, with the
average formal error about 9.3%, or scale length for the disk
component, with the average formal error about 2%.
Note (3): With the average error about 0.027mag.
Note (4): resFlux=-1+dexp(-0.4(mag2M-magMod)).
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1 A1 --- Sample [ABC] Sample group (G1)
3- 10 A8 --- Name Galaxy name
12- 16 F5.1 mag KsMAGtot Absolute total Ks band magnitude
18- 22 F5.1 mag KsMAGbul Absolute bulge Ks band magnitude
24- 27 F4.2 kpc Re Bulge half-light radius
29- 33 F5.1 mag KsMAGdisk Absolute disk Ks band magnitude
35- 38 F4.2 kpc Rs Disk scale length
40- 42 F3.1 [solMass] logM Log of estimated black hole mass
in solar units
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Global Notes:
Note (G1): Galaxies in our sample were selected from Ho et al. (Cat.
J/ApJS/112/315) and divided into three subsamples according to
morphology or Hubble stage parameter T. Sample is defined as follows:
A = subsample of early-type spiral galaxies, S0/a and Sa, with T=0-1;
B = subsample of intermediate-type spiral galaxies, Sab, Sb, and
Sbc, with T=2-4;
C = subsample of late-type spiral galaxies, Sc, with T=5.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 15-Jan-2007