Kataloge

Centaurus / Milky Way Globular Clusters

«A Catalog of Parameters for Globular Clusters in the Milky Way» William E. Harris, 1996 [148]
ID Name RA Dec RSun RGC Fe/H wt EB-V VHB (m-M)V Vt MV,t U-B B-V V-R V-I spt ellip vr vLSR sigv c rc rh μV ρ0 lg(tc) lg(th)
Rup 106 12 38 40.2 -51 09 01 21.2 18.5 -1.68 6 0.20 17.80 17.25 10.90 -6.35 -44.0 ± 3.0 -49.7 0.70 1.00 1.05 21.82 1.10 9.41 9.34
NGC 5139 omega Cen 13 26 47.24 -47 28 46.5 5.2 6.4 -1.53 4 0.12 14.51 13.94 3.68 -10.26 0.19 0.78 0.51 1.05 F5 0.17 232.1 ± 0.1 228.9 16.8 ± 0.3 1.31 2.37 5.00 16.81 3.15 9.60 10.09
NGC 5286 13 46 26.81 -51 22 27.3 11.7 8.9 -1.69 4 0.24 16.63 16.08 7.34 -8.74 0.28 0.88 0.58 1.19 F5 0.12 57.4 ± 1.5 54.3 8.1 ± 1.0 1.41 0.28 0.73 16.22 4.10 8.40 9.11

Legend

Key to columns [148]
ID Cluster identification number
Name Other commonly used cluster name
RA Right ascension (epoch J2000)
Dec Declination (epoch J2000)
RSun Distance from Sun (kiloparsecs)
RGC Distance from Galactic center (kpc), assuming R_0=8.0 kpc
Fe/H Metallicity [Fe/H]
wt Weight of mean metallicity; essentially the number of independent [Fe/H] measurements averaged together.
EB-V Foreground reddening
VHB V magnitude level of the horizontal branch (or RR Lyraes)
(m-M)V Apparent visual distance modulus
Vt Integrated V magnitude of the cluster
MV,t Absolute visual magnitude (cluster luminosity), M_V,t = V_t - (m-M)V
U-B Integrated color indices (uncorrected for reddening)
B-V Integrated color indices (uncorrected for reddening)
V-R Integrated color indices (uncorrected for reddening)
V-I Integrated color indices (uncorrected for reddening)
spt Spectral type of the integrated cluster light
ellip Projected ellipticity of isophotes, e = 1-(b/a)
vr Heliocentric radial velocity (km/s)
vLSR Radial velocity relative to Solar neighborhood LSR
sigv Central velocity dispersion sig_v (km/s)
c King-model central concentration, c = log(r_t/r_c); a 'c' denotes a core-collapsed cluster
rc Core radius in arcmin
rh Half-light radius in arcmin
μV Central surface brightness, V magnitudes per square arcsecond
ρ0 Central luminosity density, log_10(Solar luminosities per cubic parsec)
lg(tc) Core relaxation time t(r_c), in log_10(years)
lg(th) Median relaxation time t(r_h), in log_10(years)

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