J/ApJS/161/304 Star clusters in the Milky Way and satellites (McLaughlin+, 2005)
Resolved massive star clusters in the Milky way and its satellites: brightness
profiles and a catalog of fundamental parameters.
McLaughlin D.E., Van Der Marel R.P.
<Astrophys. J. Suppl. Ser., 161, 304-360 (2005)>
=2005ApJS..161..304M 2005ApJS..161..304M
ADC_Keywords: Magellanic Clouds ; Clusters, globular ; Photometry
Keywords: galaxies: star clusters - globular clusters: general -
Magellanic Clouds
Abstract:
We present a database of structural and dynamical properties for 153
spatially resolved star clusters in the Milky Way, the Large and Small
Magellanic Clouds, and the Fornax dwarf spheroidal. This database
complements and extends others in the literature, such as those of
Harris (Cat. VII/202) and Mackey & Gilmore (2003MNRAS.338...85M 2003MNRAS.338...85M,
2003MNRAS.338..120M 2003MNRAS.338..120M, 2003MNRAS.340..175M 2003MNRAS.340..175M). Our cluster sample
comprises 50 "young massive clusters" in the LMC and SMC, and 103
old globular clusters between the four galaxies. The parameters we
list include central and half-light-averaged surface brightnesses
and mass densities; core and effective radii; central potentials,
concentration parameters, and tidal radii; predicted central velocity
dispersions and escape velocities; total luminosities, masses, and
binding energies; central phase-space densities; half-mass relaxation
times; and "κ-space" parameters.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
clusters.dat 54 216 List of the studied star clusters
table5.dat 59 4689 Calibrated V-band surface brightness profiles of
LMC, SMC, and Fornax clusters
table8.dat 186 216 Population-synthesis colors and mass-to-light
ratios
table10.dat 164 459 Basic model fit parameters
table11.dat 183 459 Derived structural parameters
table12.dat 182 459 Derived dynamical parameters
table13.dat 172 67 Population vs. dynamical mass-to-light ratios
table14.dat 79 459 Galactocentric radii and kappa-space parameters
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See also:
VII/202 : Globular Clusters in the Milky Way (Harris, 1997)
VII/151 : Structure Parameters of Galactic Globular Clusters
(Webbink 1985)
J/A+A/324/505 : Core velocity dispersions of globular clusters (Dubath+ 1997)
J/AJ/105/938 : BV photometry of NGC 1850 (in LMC) (Fischer+ 1993)
J/AJ/109/218 : Catalogue of globular cluster profiles (Trager+ 1995)
Byte-by-byte Description of file: clusters.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name with galaxy prefix
13- 14 I2 h RAh ? Hour of Right Ascension (J2000.0)
16- 17 I2 min RAm ? Minute of Right Ascension (J2000.0)
19- 22 F4.1 s RAs ? Second of Right Ascension (J2000.0)
24 A1 --- DE- Sign of the Declination (J2000.0)
25- 26 I2 deg DEd ? Degree of Declination (J2000.0)
28- 31 F4.1 arcmin DEm ? Arcminute of Declination (J2000.0)
33- 34 I2 arcsec DEs ? Arcsecond of Declination (J2000.0)
36- 54 A19 --- SName Simbad name
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 11 A11 -- Cluster Cluster name with galaxy prefix
13- 18 F6.2 arcsec Rad Projected clustercentric radius
20- 25 F6.3 [arcsec] logRad Log of clustercentric radius
27- 31 F5.2 mag/arcsec2 SB V-band surface brightness (1)
33- 37 F5.2 mag/arcsec2 SBmax Max. (faintest) V surface brightness
39- 43 F5.2 mag/arcsec2 SBmin Min. (brightest) V surface brightness
45 A1 -- Band Source of original SB datapoint (2)
47- 51 F5.3 mag AV V-band extinction (3)
53- 57 F5.3 mag e_AV Uncertainty in AV
59 I1 -- Fit [0/1] Fit flag (4)
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Note (1): Surface brightnesses are on our calibrated V-band scale, with
zeropoint corrections applied to numbers previously published by
Mackey & Gilmore (2003MNRAS.338...85M 2003MNRAS.338...85M, 2003MNRAS.338..120M 2003MNRAS.338..120M,
2003MNRAS.340..175M 2003MNRAS.340..175M); see text (Table 4). The 'maximum' and 'minimum'
surface brightnesses define errorbars which are asymmetric in general.
The uncertainty in the zeropoint correction from Table 4 is a source
of systematic error; it is not accounted for in the surface-brightness
numbers in this table but is added in quadrature to the formal
uncertainties in all fitted and derived cluster parameters in
subsequent tables.
Note (2): Entry 'V', 'B', or 'I' denotes the original bandpass of a Mackey
& Gilmore (2003MNRAS.338...85M 2003MNRAS.338...85M, 2003MNRAS.338..120M 2003MNRAS.338..120M,
2003MNRAS.340..175M 2003MNRAS.340..175M) surface-brightness datapoint. B or I data have
already been shifted by the amounts given in Table 2, and then again
by the corrections in Table 4, to bring them onto our calibrated
V-band scale. An entry of 'G' denotes a surface density taken from
ground-based starcounts in the literature (Table 1), transformed to a
surface brightness and zeropointed to our V-band scale.
Note (3): V-band extinction AV=3.1xE(B-V), with reddening E(B-V) taken
from literature values compiled by Mackey & Gilmore
(2003MNRAS.340..175M 2003MNRAS.340..175M) for the Fornax globular clusters but inferred
from our population- synthesis modeling in (Section 3 of the text; see
Table 8) for LMC and SMC clusters. This extinction must be subtracted
from all surface- brightnesses given here; it is assumed spatially
constant in each cluster but is listed at every radius as a
convenience.
Note (4): Fit flag, takes the values:
1 = The datapoint was used when fitting structural models to the cluster.
0 = The point was not used in the fitting.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 11 A11 -- Cluster Cluster name, with galaxy prefix
13- 17 F5.2 [yr] logAge Log of cluster age in years (1)
19- 23 F5.2 [Sun] [Fe/H] Cluster metallicity (1)
25- 29 F5.2 mag B-V ? Observed (B-V) color index (2)
32- 37 F6.3 mag (B-V)1 (B-V)0 prediction of BC code + ChD IMF (4)
39- 43 F5.3 mag e_(B-V)1 The 1σ error in (B-V)1
45- 50 F6.3 mag (B-V)2 (B-V)0 prediction of BC code + Salpeter IMF (4)
52- 56 F5.3 mag e_(B-V)2 The 1σ error in (B-V)2
58- 63 F6.3 mag (B-V)3 (B-V)0 prediction of PEGASE code + ChD IMF (4)
65- 69 F5.3 mag e_(B-V)3 The 1σ error in (B-V)3
71- 76 F6.3 mag (B-V)4 (B-V)0 prediction of PEGASE + Salpeter IMF (4)
78- 82 F5.3 mag e_(B-V)4 The 1σ error in (B-V)4
84- 89 F6.3 mag (B-V)5 (B-V)0 prediction of PEGASE code + ChGC IMF (4)
91- 95 F5.3 mag e_(B-V)5 The 1σ error in (B-V)5
97-102 F6.3 mag (B-V)6 (B-V)0 prediction of PEGASE code + KTG IMF (4)
104-108 F5.3 mag e_(B-V)6 The 1σ error in (B-V)6
110-115 F6.3 Sun (M/L)1 (M/Lv) prediction of BC code + ChD IMF (4)
117-121 F5.3 Sun e_(M/L)1 The 1σ error in BC/ChD
123-128 F6.3 Sun (M/L)2 (M/Lv) prediction of BC code + Salpeter IMF (4)
130-134 F5.3 Sun e_(M/L)2 The 1σ error in BC/Salp
136-141 F6.3 Sun (M/L)3 (M/Lv) prediction of PEGASE code + ChD IMF (4)
143-147 F5.3 Sun e_(M/L)3 The 1σ error in PEG/ChD
149-154 F6.3 Sun (M/L)4 (M/Lv) prediction of PEGASE + Salpeter IMF (4)
156-160 F5.3 Sun e_(M/L)4 The 1σ error in PEG/Salp
162-167 F6.3 Sun (M/L)5 (M/Lv) prediction of PEGASE code + ChGC IMF (4)
169-173 F5.3 Sun e_(M/L)5 The 1σ error in PEG/ChGC
175-180 F6.3 Sun (M/L)6 (M/Lv) prediction of PEGASE code + KTG IMF (4)
182-186 F5.3 Sun e_(M/L)6 The 1σ error in PEG/KTG
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Note (1): Ages, metallicities, and their uncertainties for LMC, SMC,
and Fornax clusters are taken from the compilation and analysis
by Mackey & Gilmore (2003MNRAS.338...85M 2003MNRAS.338...85M, 2003MNRAS.338..120M 2003MNRAS.338..120M,
2003MNRAS.340..175M 2003MNRAS.340..175M). All ages given as greater than 13Gyr by
Mackey & Gilmore have been re-set here to 13±2Gyr [i.e.,
log(age)=10.11±0.07]. Milky Way globular cluster ages are set
to a uniform 13±2Gyr, while their individual metallicities are
taken from the catalog of Harris (1996, Cat. VII/202) and
assigned uncertainties of ±0.2dex.
Note (2): Aperture (B-V) colors for LMC, SMC, and Fornax clusters are
from the literature summarized in Table 3. (B-V) colors of Milky Way
globular clusters are taken from Harris (1996, Cat. VII/202),
where available. No corrections for reddening have been applied.
Note (4): Key to population-synthesis code/IMF combinations:
BC+ChD = code of Bruzual & Charlot (2003MNRAS.344.1000B 2003MNRAS.344.1000B) using
the disk- star IMF of Chabrier (2003PASP..115..763C 2003PASP..115..763C)
BC+Salp = Bruzual & Charlot (2003MNRAS.344.1000B 2003MNRAS.344.1000B) code using the
Salpeter (1955ApJ...121..161S 1955ApJ...121..161S) IMF
PEG+ChD = PEGASE v. 2.0 code of Fioc & Rocca-Volmerange
(1997A&A...326..950F 1997A&A...326..950F) using the disk-star IMF of
Chabrier (2003PASP..115..763C 2003PASP..115..763C)
PEG+Salp = PEGASE code using a Salpeter (1955ApJ...121..161S 1955ApJ...121..161S) IMF;
PEG+ChGC = PEGASE code using the Globular Cluster IMF of Chabrier
(2003PASP..115..763C 2003PASP..115..763C)
PEG+KTG = PEGASE code using the IMF of Kroupa, Tout, & Gilmore
(1993MNRAS.262..545K 1993MNRAS.262..545K)
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Byte-by-byte Description of file: table10.dat
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Bytes Format Units Label Explanations
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1- 11 A11 -- Cluster Cluster name with galaxy prefix
13- 17 F5.2 mag/arcsec2 ZeroPt Zeropoint correction (1)
19- 24 F6.2 mag/arcsec2 E_ZeroPt Upper 1σ error in ZeroPt
26- 29 F4.2 mag/arcsec2 e_ZeroPt Lower 1σ error in ZeroPt
31- 34 F4.2 mag AV V-band extinction (2)
36- 39 F4.2 mag E_AV Upper 1σ error in AV
41- 44 F4.2 mag e_AV Lower 1σ error in AV
46- 50 F5.1 kpc Dist Distance to cluster
52- 54 I3 -- Npts Number of points in fitted SB profile
56 A1 -- W [lsu] Weighting of SB fit (3)
58- 59 A2 -- Mod [KW PL] Model fit (G1)
61- 67 F7.2 -- Chi2 Minimum chi-square of model fit (5)
69- 73 F5.2 -- W0/gamma Dimensionless central potential (6)
75- 79 F5.2 -- E_W0/gamma Upper 1σ error in WO
81- 85 F5.2 -- e_W0/gamma Lower 1σ error in WO
87- 91 F5.2 -- Conc ?=99.99 Concentration c=log(rtid/r0)
of the best fit (7)
93- 96 F4.2 -- E_Conc Upper 1σ error in Conc
98-101 F4.2 -- e_Conc Lower 1σ error in Conc
103-107 F5.2 mag/arcsec2 SB0 central V surface brightness (8)
109-112 F4.2 mag/arcsec2 E_SB0 Upper 1σ error in SB0
114-117 F4.2 mag/arcsec2 e_SB0 Lower 1σ error in SB0
119-126 F8.3 arcsec r0 Scale radius in arcseconds (9)
128-134 F7.3 arcsec E_r0 Upper 1σ error in r0
136-142 F7.3 arcsec e_r0 Lower 1σ error in r0
144-150 F7.3 pc r0pc Scale radius in parsecs
152-157 F6.3 pc E_r0pc Upper 1σ error in r0pc
159-164 F6.3 pc e_r0pc Lower 1σ error in r0pc
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Note (1): Zeropoint correction applied to published V-band surface
brightnesses; from Table 4 (Section 2.1) of text.
Note (2): V-band extinction, from population-synthesis modeling for LMC and
SMC clusters [Table 8, Section 3; with AV=0 enforced for clusters with
observed (B-V) bluer than model (B-V)0]; from Mackey & Gilmore
(2003MNRAS.340..175M 2003MNRAS.340..175M) for Fornax globular clusters; from Harris (1996,
Cat. VII/202) for Galactic GCs.
Note (3): Weighting scheme for model fitting: "l" denotes weighted
least-squares fit to surface-brightness data in linear units
(L☉/pc2); "s" denotes weighted least-squares fit to surface
brightness data in mag/arcsec2; "u" denotes unweighted least-squares
fit to surface brightness data in mag/arcsec2.
Note (5): For weighting schemes "l" and "s" this is the unreduced chi2
for the best fit of model identified in previous column. The reduced
chi2 per degree of freedom is chi2/(Npts-2). For unweighted fits
"u", chi2 is actually the rms deviation of observed surface
brightness (in V mag/arcsec2) from the model profile.
Note (6): For King- and Wilson-model fits, entry is the dimensionless
central potential W0 defined in the standard way (e.g., King
1966AJ.....71...64K 1966AJ.....71...64K). For power-law models, entry is the exponent
gamma of the asymptotic three-dimensional density profile (see Section
4.1 of text).
Note (7): Concentration parameter defined as in King (1966AJ.....71...64K 1966AJ.....71...64K)
for King and Wilson models. Formally infinite for power-law models,
indicated here by values of 99.99 (+0, -0).
Note (8): Best-fit muV0 and uncertainties *including* corrections for
V-band extinction and any zeropoint change.
Note (9): Model scale radius r0 is defined slightly differently for
power-law models than for King (1966AJ.....71...64K 1966AJ.....71...64K) and Wilson
(1975AJ.....80..175W 1975AJ.....80..175W) models; see Section 4.1 of text.
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Byte-by-byte Description of file: table11.dat
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Bytes Format Units Label Explanations
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1- 11 A11 -- Cluster Cluster name with galaxy prefix
13- 14 A2 -- Mod [KW PL] Model fit (G1)
16- 20 F5.2 [pc] Rtid ?=99.99 Log of tidal radius (2)
22- 25 F4.2 [pc] E_Rtid Upper 1σ error in rtid
27- 30 F4.2 [pc] e_Rtid Lower 1σ error in rtid
32- 37 F6.3 [pc] Rc Log of half-power radius
39- 43 F5.3 [pc] E_Rc Upper 1σ error in Rc
45- 49 F5.3 [pc] e_Rc Lower 1σ error in Rc
51- 56 F6.3 [pc] Rh Log of projected half-light radius
58- 62 F5.3 [pc] E_Rh Upper 1σ error in Rh
64- 68 F5.3 [pc] e_Rh Lower 1σ error in Rh
70- 74 F5.3 -- Rh/Rc Log of ratio (Rh/Rc)
76- 80 F5.3 -- E_Rh/Rc Upper 1σ error in Rh/Rc
82- 86 F5.3 -- e_Rh/Rc Lower 1σ error in Rh/Rc
88- 91 F4.2 [solLum/pc2] I0 Log of central V-band intensity
93- 96 F4.2 [solLum/pc2] E_I0 Upper 1σ error in I0
98-101 F4.2 [solLum/pc2] e_I0 Lower 1σ error in I0
103-107 F5.2 [solLum/pc3] j0 Log of central light volume density
109-112 F4.2 [solLum/pc3] E_j0 Upper 1σ error in j0
114-117 F4.2 [solLum/pc3] e_j0 Lower 1σ error in j0
119-122 F4.2 [solLum] Ltot Log of total luminosity (model)
124-127 F4.2 [solLum] E_Ltot Upper 1σ error in Ltot
129-132 F4.2 [solLum] e_Ltot Lower 1σ error in Ltot
134-138 F5.2 mag Vmag Log of total apparent magnitude (3)
140-143 F4.2 mag E_Vmag Upper 1σ error in Vmag
145-148 F4.2 mag e_Vmag Lower 1σ error in Vmag
150-154 F5.2 [solLum/pc2] Ih Log of V intensity averaged over Rh
156-159 F4.2 [solLum/pc2] E_Ih Upper 1σ error in Ih
161-165 F5.2 [solLum/pc2] e_Ih Lower 1σ error in Ih
167-171 F5.2 mag/arcsec2 muh muV averaged inside Rh
173-177 F5.2 mag/arcsec2 E_muh Upper 1σ error in muh
179-183 F5.2 mag/arcsec2 e_muh Lower 1σ error in muh
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Note (2): Logarithm of cluster tidal radius in pc: log(rt)=c+log(r0).
Tidal radius is formally infinite for all power-law models; denoted
here by 99.99 (+0, -0) for the tabulated logarithm.
Note (3): Vtot is extinction corrected. Refer to Section 4.2 of the text
for definitions of all other tabulated quantities and for full details
of their calculation.
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Byte-by-byte Description of file: table12.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name, with galaxy prefix
13- 17 F5.3 Sun M/L Population-synthesis M/LV (1)
19- 23 F5.3 Sun E_M/L Upper 1σ error in M/L
25- 29 F5.3 Sun e_M/L Lower 1σ error in M/L
31- 32 A2 --- Mod [KW PL] Model fit (G1)
34- 37 F4.2 [solMass] Mtot Log of total model mass
39- 42 F4.2 [solMass] E_Mtot Upper 1σ error in Mtot
44- 47 F4.2 [solMass] e_Mtot Lower 1σ error in Mtot
49- 53 F5.2 [10-7J] Eb Log of total binding energy
in units of erg
55- 58 F4.2 [10-7J] E_Eb Upper 1σ error in Eb
60- 63 F4.2 [10-7J] e_Eb Lower 1σ error in Eb
65- 68 F4.2 [solMass/pc2] Sigma0 Log of R=0 surface density
70- 73 F4.2 [solMass/pc2] E_Sigma0 Upper 1σ error in Sigma0
75- 78 F4.2 [solMass/pc2] e_Sigma0 Lower 1σ error in Sigma0
80- 84 F5.2 [solMass/pc3] rho0 Log of R=0 volume density
86- 89 F4.2 [solMass/pc3] E_rho0 Upper 1σ error in rho0
91- 94 F4.2 [solMass/pc3] e_rho0 Lower 1σ error in rho0
96-100 F5.2 [solMass/pc2] Sigmah Log of average surface density
inside Rh
102-105 F4.2 [solMass/pc2] E_Sigmah Upper 1σ error in Sigmah
107-111 F5.2 [solMass/pc2] e_Sigmah Lower 1σ error in Sigmah
113-117 F5.2 [km/s] sigp0 Velocity dispersion at R=0
119-123 F5.2 [km/s] E_sigp0 Upper 1σ error in sigp0
125-128 F4.2 [km/s] e_sigp0 Lower 1σ error in sigp0
130-134 F5.2 [km/s] vesc0 Escape velocity at R=0
136-141 F6.2 [km/s] E_vesc0 Upper 1σ error in vesc0
143-147 F5.2 [km/s] e_vesc0 Lower 1σ error in vesc0
149-153 F5.2 [yr] log(Th) Log of half-mass relaxation time
155-158 F4.2 [yr] E_log(Th) Upper 1σ error in log(Th)
160-163 F4.2 [yr] e_log(Th) Lower 1σ error in log(Th)
165-170 F6.3 [solMass.pc-3.km-3.s3] f0 Log of phase-space density
at R=0
172-176 F5.3 [solMass.pc-3.km-3.s3] E_f0 Upper 1σ error in f0
178-182 F5.3 [solMass.pc-3.km-3.s3] e_f0 Lower 1σ error in f0
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Note (1): Predicted V-band mass-to-light ratio from population-synthesis
models using the code of Bruzual & Charlot (2003MNRAS.344.1000B 2003MNRAS.344.1000B) and
assuming a Chabrier (2003PASP..115..763C 2003PASP..115..763C) disk-star IMF. Refer to
Section 4.2 of the text for definitions of all other tabulated
quantities and full details of their calculation.
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Byte-by-byte Description of file: table13.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name, with galaxy prefix
13- 16 F4.2 Sun M/L ? population V-band M/L ratio (1)
18- 21 F4.2 Sun e_M/L ? The 1σ error in popML
23- 27 F5.2 [km/s] sigObs ? Observed velocity dispersion
29- 32 F4.2 [km/s] E_sigObs ? Upper 1σ error in sigObs
34- 37 F4.2 [km/s] e_sigObs ? Lower 1σ error in sigObs
39- 43 F5.1 arcsec a_sigObs ? Aperture radius for sigObs
45- 48 A4 --- Ref Source of sigObs (2)
50- 54 F5.2 [km/s] sigmap0 Velocity dispersion at R=0 (3)
56- 59 F4.2 [km/s] E_sigmap0 Upper 1σ error in sigmap0
61- 64 F4.2 [km/s] e_sigmap0 Lower 1σ error in sigmap0
66- 70 F5.2 Sun KM/L King-model V-band M/L ratio
72- 75 F4.2 Sun E_KM/L Upper 1σ error in KM/L
77- 80 F4.2 Sun e_KM/L Lower 1σ error in KM/L
82- 87 F6.3 [Sun] logDK King-model M/L to population M/L ratio (4)
89- 93 F5.3 [Sun] E_logDK Upper 1σ error in logDK
95-100 F6.3 [Sun] e_logDK ?=99.999 Lower 1σ error in logDK
102-106 F5.2 Sun WM/L Wilson-model V-band M/L ratio
108-111 F4.2 Sun E_WM/L Upper 1σ error in WM/L
113-116 F4.2 Sun e_WM/L ?=99.999 Lower 1σ error in WM/L
118-123 F6.3 [Sun] logDW Wilson-model M/L to population M/L ratio
125-129 F5.3 [Sun] E_logDW Upper 1σ error in logDW
131-136 F6.3 [Sun] e_logDW ?=99.999 Lower 1σ error in logDW
138-142 F5.2 Sun PLM/L Power-law model V-band M/L ratio
144-147 F4.2 Sun E_PLM/L Upper 1σ error in PLM/L
149-152 F4.2 Sun e_PLM/L Lower 1σ error in PLM/L
154-159 F6.3 [Sun] logDPL Power-law-model M/L to M/L ratio
161-165 F5.3 [Sun] E_logDPL Upper 1σ error in logDPLML
167-172 F6.3 [Sun] e_logDPL ?=99.999 Lower 1σ error in logDPLML
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Note (1): Population-synthesis V-band mass-to-light ratio obtained from
code Bruzual & Charlot (2003MNRAS.344.1000B 2003MNRAS.344.1000B) assuming Chabrier's
(2003PASP..115..763C 2003PASP..115..763C) disk-star IMF (column BC/ChD of Table 8).
Note (2): Literature sources for sigmaobs measurements and aperture radii:
1 = Dubath, Meylan, & Mayor (1997, Cat. J/A+A/324/505);
2 = Mateo, Welch, & Fischer (1991IAUS..148..191M 1991IAUS..148..191M);
3 = Fischer et al. (1993, Cat. J/AJ/105/938);
4 = Fischer et al. (1992AJ....103..857F 1992AJ....103..857F);
5 = Lupton et al. (1989ApJ...347..201L 1989ApJ...347..201L);
6 = Feast & Black (1980MNRAS.191..285F 1980MNRAS.191..285F);
7 = Dubath, Meylan, & Mayor (1992ApJ...400..510D 1992ApJ...400..510D);
8 = Pryor & Meylan (1993, in ASP Conf. Ser. 50, Structure and Dynamics
of Globular Clusters, ed. S. G. Djorgovski & G. Meylan
(San Francisco: ASP), 357);
ave = Average of multiple observations (where applicable).
Note (3): sigmap,0 is the aperture-corrected line-of-sight velocity
dispersion at the cluster center, derived from the quoted sigmaobs
and corresponding aperture radius and given as the average of separate
results using King, Wilson, and power-law structural models for each
cluster.
Note (4): All subsequent columns depend on calculations using the central
sigmap,0 in conjunction with each of the King, Wilson, and Power-law
fits to the SB profile of every cluster here; see Section 5 of the
text for full details.
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Byte-by-byte Description of file: table14.dat
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Bytes Format Units Label Explanations
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1- 11 A11 -- Cluster Cluster name, with galaxy prefix
13- 18 F6.2 kpc Rad Distance from center of parent galaxy (1)
20- 21 A2 -- Mod [KW PL] Model fit (G1)
23- 28 F6.3 -- kappa1 kappa1 fundamental-plane parameter (2)
30- 34 F5.3 -- E_kappa1 Upper 1σ error in kappa1
36- 40 F5.3 -- e_kappa1 Lower 1σ error in kappa1
42- 47 F6.3 -- kappa2 kappa2 fundmental-plane parameter (2)
49- 53 F5.3 -- E_kappa2 Upper 1σ error in kappa2
55- 60 F6.3 -- e_kappa2 Lower 1σ error in kappa2
62- 67 F6.3 -- kappa3 kappa3 fundamental-plane parameter (2)
69- 73 F5.3 -- E_kappa3 Upper 1σ error in kappa3
75- 79 F5.3 -- e_kappa3 Lower 1σ error in kappa3
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Note (1): For LMC, SMC, and Fornax clusters, the entry is a projected
galactocentric radius; see Section 6 of the text for details of the
adopted galaxy centers. For Milky Way globular clusters, entry is the
three-dimensional Galactocentric radius given in the catalogue of
Harris (1996, Cat. VII/202).
Note (2): See Section 6 of the text for definition of the kappa-space
fundamental-plane variables.
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Global Notes:
Note (G1): Each of three models fits to every cluster
(see Section 4.1 of text). Their abbreviations are as follows:
K = King (1966AJ.....71...64K 1966AJ.....71...64K) model;
W = isotropic Wilson (1975AJ.....80..175W 1975AJ.....80..175W) model;
PL = power-law with core.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 26-Jun-2006