Globular Cluster Database

The table below lists the mean, Galactic extinction-corrected V-I colour for the two globular clusters sub-populations seen in some 60 galaxies. The significance of the two sub-populations is classified as either Y (Yes) for definitely bimodal or L (Likely) for probable bimodality. See notes below for further details. Please contact me if you have additional data for this table or if you wish to use data from this table in a publication. The current version of the table is dated JUNE 2006.

Galaxy	Type	Distance	Mv	Log velocity	mean	error	mean	error	Globular Cluster	Bimodal	Original	HST or Ground
-	-	Modulus	-	dispersion	Blue (V-I)o	-	Red (V-I)o	-	Reference	-	Colour	-
-	-	mag	mag	km/s	mag	mag	mag	mag	-	-	-	-
-	RC3	PS96	PS96 S98	PS96	-	-	-	-	-	-	-	-
N0524	S0	32.62	-22.62	2.39	0.98	0.03	1.19	0.03	L01	Y	V-I	H
N0584	E4	31.73	-21.40	2.35	0.96	0.05	1.16	0.05	K99	L	V-I	H
N1023	SB0	30.15	-21.01	2.33	0.91	0.03	1.16	0.03	L01	Y	V-I	H
N1052	E4	31.24	-20.99	2.34	0.90	0.10	1.08	0.10	F01	Y	B-I	G
N1199	E3	32.29	-22.00	2.32	0.92	0.04	1.12	0.04	D01	Y	B-R	G
N1316	S0p	31.29	-22.79	2.40	0.90	0.03	1.03	0.03	G04	Y	V-I	H
N1374	E1	31.29	-20.40	2.33	0.94	0.05	1.15	0.05	B06	Y	C-T1	G
N1379	E0	31.29	-20.66	2.11	0.95	0.05	1.13	0.05	B06	Y	C-T1	G
N1380	S0	31.29	-21.70	2.39	0.87	0.10	1.16	0.10	K97	Y	B-R	G
N1387	S0	31.29	-20.52	--	0.93	0.05	1.19	0.05	B06	Y	C-T1	G
N1399	cD	31.29	-21.85	2.53	0.96	0.03	1.16	0.03	F98	Y	B-I	H
N1404	E1	31.29	-21.41	2.38	0.91	0.03	1.17	0.03	F98	Y	B-I	H
N1407	E0	31.57	-20.87	2.45	0.93	0.02	1.16	0.02	F06	Y	B-I	H
N1427	E5	31.29	-20.49	2.23	0.97	0.10	1.17	0.10	F01	Y	C-T1	G
N1439	E1	31.57	-20.45	2.22	0.95	0.05	1.14	0.05	K99	L	V-I	H
N1700	E4	33.52	-22.49	2.39	0.90	0.10	1.12	0.10	BF00	Y	B-I	G
N2768	S0	31.60	-21.91	2.29	0.91	0.03	1.11	0.03	K99	Y	V-I	H
N3115	S0	29.73	-20.84	2.42	0.92	0.05	1.15	0.05	L01	L	V-I	H
N3258	E1	32.92	-21.63	2.43	0.96	0.02	1.13	0.03	D03	Y	C-T1	G
N3268	E2	32.92	-21.72	2.36	0.99	0.04	1.15	0.02	D03	Y	C-T1	G
N3311	cD	33.83	-22.49	2.28	0.91	0.05	1.09	0.05	B00	L	V-I	H
N3348	E0	33.23	-22.58	2.38	0.93	0.03	1.17	0.03	H06	Y	B-I	H
N3377	E5	30.00	-19.79	2.16	0.93	0.05	1.10	0.05	K99	L	V-I	H
N3379	E1	30.00	-20.69	2.34	0.96	0.05	1.17	0.05	L01	L	V-I	H
N3384	SB0	30.00	-20.13	2.23	0.94	0.05	1.21	0.05	L01	L	V-I	H
N3610	E5	32.18	-21.35	2.21	0.94	0.03	1.16	0.03	W02	Y	V-I	H
N3923	E4	31.26	-21.92	2.38	1.00	0.10	1.20	0.10	Z95	Y	C-T1	G
N4278	E1	31.05	-21.11	2.39	0.92	0.05	1.12	0.05	K99	L	V-I	H
N4365	E3	31.01	-21.41	2.43	0.98	0.03	1.19	0.03	L01	L	V-I	H
N4374	E1	31.01	-20.92	2.47	0.91	0.03	1.07	0.06	G03	Y	B-R	G
N4406	S0	31.01	-22.12	2.40	0.99	0.03	1.15	0.03	L01	Y	V-I	H
N4472	E2	31.01	-22.81	2.48	0.94	0.03	1.21	0.03	L01	Y	V-I	H
N4473	E5	31.04	-20.93	2.25	0.94	0.05	1.16	0.05	L01	L	V-I	H
N4486	cD	31.01	-22.62	2.52	0.95	0.03	1.20	0.03	L01	Y	V-I	H
N4494	E1	31.64	-22.00	2.19	0.90	0.03	1.10	0.03	L01	Y	V-I	H
N4526	SB0	31.01	-21.75	2.42	0.88	0.03	1.15	0.03	GK99	Y	V-I	H
N4552	E5	31.01	-21.24	2.42	0.95	0.03	1.17	0.03	L01	Y	V-I	H
N4594	Sa	29.70	-22.00 §	2.40	0.94	0.03	1.18	0.03	L01	Y	V-I	H
N4621	E5	31.01	-21.33	2.37	0.95	0.03	1.13	0.03	K99	Y	V-I	H
N4636	E	31.01	-20.58	2.32	0.95	0.02	1.19	0.02	D05	Y	C-T1	G
N4649	E2	31.01	-22.40	2.53	0.95	0.03	1.21	0.03	L01	Y	V-I	H
N4660	E	31.01	-19.96	2.27	0.89	0.05	1.04	0.05	K99	L	V-I	H
N4696	E1p	33.03	-23.01	2.40	0.96	0.03	1.18	0.03	H06	Y	B-I	H
N4733	E	31.01	-19.05	1.88	0.92	0.05	1.08	0.05	L01	L	V-I	H
N5128	S0p	27.95	-21.45	2.16	0.86	0.10	1.19	0.10	R01	Y	U-V	G
N5322	E3	32.22	-22.09	2.36	0.96	0.03	1.14	0.03	H06	Y	B-I	H
N5557	E1	33.18	-22.24	2.41	0.96	0.03	1.18	0.03	H06	Y	B-I	H
N5846	E0	31.80	-22.23	2.39	0.94	0.03	1.15	0.03	F97	Y	V-I	H
N5982	E3	32.87	-21.80	2.40	0.97	0.05	1.16	0.05	K99	L	V-I	H
N6702	E	33.78	-21.98	2.25	0.83	0.10	1.16	0.10	GF00	Y	B-I	G
N6868	E	32.70	-22.17	2.44	0.91	0.07	1.12	0.07	D01	Y	B-R	G
N7049	S0	32.33	-21.98	2.38	0.96	0.03	1.20	0.03	H06	Y	B-I	H
N7332	S0p	30.92	-20.09	2.14	0.88	0.10	1.08	0.10	F01	L	B-I	G
N7619	E2	33.01	-22.12	2.51	0.99	0.03	1.24	0.03	L00	Y	V-I	H
I1459	E3	31.38	-21.43	2.50	0.98	0.03	1.23	0.03	F96	Y	V-I	H
I4051	E	34.73	-21.75	2.38	0.98	0.05	1.16	0.05	L00	L	V-I	H
M31	Sb	24.60	-20.54 §	2.24	0.93	0.10	1.06	0.10	BH00	Y	[Fe /H]	G
MW	Sbc	0.00	-19.50 §	2.00	0.90	0.10	1.06	0.10	BH00	Y	[Fe/H]	G

§ : bulge luminosity only

Plots (from earlier versions of the table):

Globular cluster colours vs galaxy velocity dispersion (full sample). Figure 1

Globular cluster colours vs galaxy velocity dispersion (error = +/- 0.03 sample). Figure 2

Globular cluster colours vs galaxy absolute magnitude (full sample). Figure 3

An electronic version of the table can be obtained by emailing dforbes@swin.edu.au

Notes:

Galaxy name; Distance modulus from PS96, includes Virgocentric infall correction and Ho = 75 km/s/Mpc; M_V is total V band absolute magnitude from PS96 after Galactic extinction correction of S98; Galaxy central velocity dispersion from PS96 (Milky Way velocity dispersion comes from K92 ); Mean S98 extinction-corrected V-I colour for the blue globular clusters and estimated error; Mean S98 extinction-corrected V-I colour for the red globular clusters and estimated error; Reference for the globular cluster data; Bimodal colour distribution (Y=Yes or L=Likely); Original colour system (transformed to V-I using FF00 or BH00 for [Fe/H]); Observations (H=HST or G=Ground).

References:

L01 : Larsen et al. , 2001, AJ, 121, 2974.
K99 : Kundu, 1999, PhD Thesis
F01 : Forbes, Georgakakis, Brodie, 2001, MNRAS, 325, 1431.
K97 : Kissler-Patig et al. , 1997, A&A, 327, 503
F98 : Forbes et al. , 1998, MNRAS, 293, 325
F01 : Forte et al., 2001, AJ, 121, 1992
BF00 : Brown, Forbes, et al. , 2000, MNRAS, 317, 406
B00 : Brodie et al. , 2000, ApJ, 543, L19
Z95 : Zepf et al. , 1995, ApJ ,443, 570
GK99 : Gebhardt , Kissler-Patig, 1999, AJ, 118, 1526
F97 : Forbes et al. , 1997, AJ ,113, 1652
GF00 : Georgakakis, Forbes, Brodie, 2000, MNRAS, 324, 785.
L00 : Larson, 2000, private comm.
F96 : Forbes et al. , 1996, ApJ, 467, 126
BH00 : Barmby et al. , 2000, AJ, 119, 727
K92 : Kent , 1992, ApJ 387, 181
S98 : Schlegel et al. , 1998, ApJ, 500, 525
PS96 : Prugniel, Simien, 1996, A&A, 309, 749
FF00 : Forbes, Forte, 2000, MNRAS, 322, 257.
R01 : Rejkuba 2001, A&A, 369, 812.
D01 : Da Rocha etal., 2002, AJ, 123, 690.
G03 : Gomez, Richtler 2003, A&A, 415, 499.
D03 : Dirsch etal 2003, A&A, 408, 929.
D05 : Dirsch etal 2005, A&A, 433, 43
F06 : Forbes etal 2006, MNRAS, 366, 1230.
B06 : Bassino etal 2006, MNRAS in press.
W02 : Whitmore etal 2002, AJ, 124, 147.
G04 : Goudfrooij etal 2004, ApJ, 613, 121.
H06 : Harris etal 2006, ApJ, 636, 90.