2001A&A...369..812R

Query : 2001A&A...369..812R

2001A&A...369..812R - Astronomy and Astrophysics, volume 369812-825 (2001/4-3)

Deep VLT search for globular clusters in NGC 5128: Color-magnitude diagrams and globular cluster luminosity function.

REJKUBA M.

Abstract (from CDS):

At the distance of NGC 5128 (3.6±0.2Mpc) it is possible to resolve globular clusters with high resolution imaging from the ground, thus allowing the globular cluster candidate selection primarily through their morphological properties. I report the discovery of 71 globular clusters in NGC 5128 on VLT UT1+FORS1 images, including the faintest members (M_V~-5) known to date in this galaxy as well as in 5 previously-known clusters. U- and V-band photometry has been measured for all the candidates and the luminosity function, spanning -10.1<M_V←4.9 and -9.3<M_U←3.3, constructed. These are the deepest globular cluster luminosity functions in an elliptical galaxy determined so far. The Kolmogorov-Smirnov statistics show that the difference between the globular cluster luminosity functions of NGC 5128 and the MW is not larger than the difference between the ones of M 31 and the MW. The (U-V)₀ color histogram shows a bimodal distribution. For 23 globular clusters I obtained K-band images with SOFI at the NTT in La Silla. Their positions in the (U-V) vs. (V-K) color-color diagram indicate that they are indeed old globular clusters. Assuming that the globular clusters in NGC 5128 span a similar age range as the ones in the Milky Way and adopting a linear fit between the metallicity and (U-V)₀ color, the metal-rich clusters peak at [Fe/H]=-0.6dex and the metal-poor ones peak at [Fe/H]=-1.7dex.

Abstract Copyright: ∼

Journal keyword(s): galaxies: star clusters - galaxies: formation - galaxies: individual: NGC 5128

VizieR on-line data: <Available at CDS (J/A+A/369/812): table3.dat table4.dat>

Nomenclature: Tables 3, 4: [R2001b] f1.GC-NN N=50, [R2001b] f2.GC-NN N=78.

Simbad objects: 139

Full paper

View the references in ADS

Number of rows : 139

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	M 31	AGN	00 42 44.330	+41 16 07.50	4.86	4.36	3.44			~	13622	1
2	Cl Pal 1	GlC	03 33 20.04	+79 34 51.8		17.2				~	267	1
3	NAME E 3	GlC	09 20 57.07	-77 16 54.8						~	185	0
4	[VHH81] 12	GlC	13 25 05.6851767120	-43 10 30.872058411		18.82	17.74	17.74		~	25	0
5	[R2001b] f2.GC-80	GlC	13 25 05.72	-43 06 50.9			20.96			~	1	0
6	[R2001b] f2.GC-79	GlC	13 25 05.88	-43 12 02.2			22.70			~	2	0
7	[R2001b] f2.GC-78	GlC	13 25 06.11	-43 06 51.9			22.06			~	1	0
8	[R2001b] f2.GC-77	GlC	13 25 06.67	-43 08 58.2			21.16			~	4	0
9	[R2001b] f2.GC-76	GlC	13 25 07.313	-43 08 29.65	21.93	21.62	20.78	20.26	19.73	~	7	0
10	[R2001b] f2.GC-75	GlC	13 25 07.41	-43 07 34.8			21.83			~	1	0
11	[HSS2021] 228812	GlC	13 25 07.4680670640	-43 12 29.530927260	21.60	21.29	20.42	19.91	19.33	~	10	0
12	[R2001b] f2.GC-73	GlC	13 25 08.03	-43 09 51.8			22.99			~	1	0
13	[HGH2004] 201.28377-43.17725	GlC	13 25 08.11	-43 10 37.4			21.00			~	3	0
14	[R2001b] f2.GC-71	GlC	13 25 08.7838496040	-43 09 09.634274820	20.49	20.23	19.42	18.91	18.39	~	10	0
15	[R2001b] f2.GC-70	GlC	13 25 08.92	-43 08 53.5			20.30			~	11	0
16	[R2001b] f2.GC-69	GlC	13 25 09.0585745752	-43 10 01.981680168			19.87			~	9	0
17	[R2001b] f2.GC-68	GlC	13 25 09.06	-43 13 18.4			20.44			~	1	0
18	[R2001b] f2.GC-67	GlC	13 25 09.32	-43 09 58.4			22.88			~	1	0
19	[R2001b] f2.GC-66	GlC	13 25 10.11	-43 06 41.7			21.05			~	2	0
20	[R2001b] f2.GC-65	GlC	13 25 10.39	-43 08 11.1			22.74			~	2	0
21	[R2001b] f2.GC-64	GlC	13 25 12.17	-43 08 48.7			21.31			~	1	0
22	[R2001b] f2.GC-63	GlC	13 25 12.76	-43 10 42.7			20.75			~	4	0
23	[R2001b] f2.GC-62	GlC	13 25 12.81	-43 12 00.7			21.51			~	1	0
24	[R2001b] f2.GC-61	GlC	13 25 12.8712194544	-43 07 59.228291604	19.65	19.15	18.20	17.60	17.03	~	22	0
25	[R2001b] f2.GC-60	GlC	13 25 12.90	-43 06 39.2			20.50			~	1	0
26	[R2001b] f2.GC-59	GlC	13 25 13.861	-43 07 32.56	22.13	21.70	20.70	20.11	19.48	~	8	0
27	[R2001b] f2.GC-58	GlC	13 25 14.84	-43 11 00.3			22.81			~	1	0
28	[R2001b] f2.GC-57	GlC	13 25 15.216	-43 08 39.23	22.29	21.77	20.78	20.18	19.58	~	6	0
29	[HGH2004] 201.31967-43.22205	GlC	13 25 16.72	-43 13 18.4			20.63			~	3	0
30	[R2001b] f2.GC-55	GlC	13 25 16.76	-43 13 13.5			19.38			~	1	0
31	[R2001b] f2.GC-54	GlC	13 25 16.9314683424	-43 09 28.073220552	20.52	20.26	19.43	18.91	18.33	~	7	0
32	[R2001b] f2.GC-53	GlC	13 25 17.28	-43 08 38.6	20.75	20.49	19.67	19.14	18.64	~	6	0
33	[R2001b] f2.GC-52	GlC	13 25 17.84	-43 13 21.4			21.94			~	2	0
34	[R2001b] f2.GC-51	GlC	13 25 18.00	-43 06 57.6			22.09			~	1	0
35	[R2001b] f2.GC-50	GlC	13 25 18.79	-43 10 53.7			22.61			~	1	0
36	[R2001b] f2.GC-49	GlC	13 25 18.79	-43 07 11.1			22.21			~	2	0
37	[R2001b] f2.GC-48	GlC	13 25 19.42	-43 11 51.0			21.09			~	2	0
38	[R2001b] f2.GC-47	GlC	13 25 19.95	-43 07 43.7	21.86	21.20	20.11	19.40	18.62	~	6	0
39	[BBP2008] AAT115679	GlC	13 25 20.6903564064	-43 06 35.963343360	21.93	21.49	20.44	19.80	19.15	~	9	0
40	[R2001b] f2.GC-45	GlC	13 25 21.03	-43 08 31.9			21.83			~	1	0
41	[R2001b] f2.GC-44	GlC	13 25 21.24	-43 06 57.0			20.70			~	1	0
42	[R2001b] f2.GC-43	GlC	13 25 21.26	-43 10 03.0			21.41			~	2	0
43	[HGH2004] 201.33951-43.19577	GlC	13 25 21.46	-43 11 43.8			20.80			~	3	0
44	[R2001b] f2.GC-41	GlC	13 25 22.61	-43 07 37.6			21.43			~	2	0
45	[BBP2008] AAT116220	GlC	13 25 24.3823894440	-43 07 58.928347704	20.76	20.39	19.47	18.91	18.36	~	8	0
46	[R2001b] f2.GC-39	GlC	13 25 24.61	-43 08 15.2			22.97			~	1	0
47	[R2001b] f2.GC-38	GlC	13 25 24.66	-43 11 50.6			21.95			~	1	0
48	[R2001b] f2.GC-37	GlC	13 25 24.77	-43 06 54.8			22.36			~	1	0
49	[BBP2008] AAT116531	GlC	13 25 26.741	-43 08 53.41	20.92	20.65	19.83	19.34	18.83	~	6	0
50	[R2001b] f2.GC-35	GlC	13 25 26.8036625928	-43 09 40.578436404	20.55	20.30	19.53	19.02	18.51	~	9	0
51	NAME Centaurus A	BLL	13 25 27.61521044	-43 01 08.8050291		8.18	6.84	6.66		~	4774	3
52	[R2001b] f2.GC-34	GlC	13 25 28.06	-43 06 46.3			22.40			~	1	0
53	[R2001b] f2.GC-33	GlC	13 25 28.26	-43 06 40.0			22.31			~	1	0
54	[R2001b] f2.GC-32	GlC	13 25 29.00	-43 12 50.9			22.44			~	1	0
55	[R2001b] f2.GC-31	GlC	13 25 29.38	-43 07 41.1			20.66			~	7	0
56	[R2001b] f2.GC-30	GlC	13 25 29.42	-43 09 21.9			22.36			~	1	0
57	[R2001b] f2.GC-29	GlC	13 25 29.7263601072	-43 11 42.938018916	20.70	20.49	19.72	19.20	18.69	~	5	0
58	[R2001b] f2.GC-28	GlC	13 25 30.16	-43 06 54.7			21.49			~	9	0
59	[R2001b] f2.GC-27	GlC	13 25 30.30	-43 11 26.6			21.90			~	1	0
60	[R2001b] f2.GC-26	GlC	13 25 30.3895222920	-43 11 49.697197188	20.11	19.56	18.56	17.94	17.35	~	22	0
61	[R2001b] f2.GC-25	GlC	13 25 31.09	-43 10 27.6			21.13			~	1	0
62	[VHH81] 149	GlC	13 25 32.3228282664	-43 07 17.128677216	21.07	20.90	20.15	19.64	19.19	~	11	0
63	[R2001b] f2.GC-22	GlC	13 25 32.76	-43 11 51.1			21.13			~	2	0
64	[R2001b] f2.GC-23	GlC	13 25 32.7853774512	-43 07 02.294656032	20.08	19.67	18.77	18.23	17.64	~	23	0
65	[R2001b] f2.GC-21	GlC	13 25 33.09	-43 09 21.6			20.84			~	5	0
66	[R2001b] f2.GC-20	GlC	13 25 33.14	-43 07 01.2			21.26			~	8	0
67	[R2001b] f2.GC-19	GlC	13 25 33.25	-43 10 19.6			22.67			~	1	0
68	[R2001b] f2.GC-18	GlC	13 25 33.58	-43 07 18.5			21.44			~	6	0
69	[R2001b] f2.GC-17	GlC	13 25 34.0761543744	-43 10 45.700736232			20.48	20.00		~	6	0
70	[R2001b] f2.GC-16	GlC	13 25 34.40	-43 12 04.2			23.58			~	1	0
71	[R2001b] f2.GC-15	GlC	13 25 35.621	-43 08 36.89	22.06	21.68	20.80	20.27	19.70	~	8	0
72	[R2001b] f2.GC-14	GlC	13 25 35.82	-43 07 15.3			22.08			~	7	0
73	[R2001b] f2.GC-13	GlC	13 25 35.9135497992	-43 07 28.023559932	22.70	22.03	20.92	20.35	19.62	~	5	0
74	[R2001b] f2.GC-12	GlC	13 25 36.48	-43 08 04.0			21.47			~	8	0
75	[R2001b] f2.GC-11	GlC	13 25 36.65	-43 12 49.9			22.30			~	2	0
76	[R2001b] f2.GC-10	GlC	13 25 37.58	-43 12 32.3			23.16			~	1	0
77	[HSS2021] 240331	GlC	13 25 38.115	-43 13 02.24	21.92	21.51	20.62	20.05	19.43	~	7	0
78	[R2001b] f2.GC-8	GlC	13 25 38.97	-43 10 40.9			21.55			~	1	0
79	[R2001b] f2.GC-7	GlC	13 25 39.04	-43 12 56.7			22.41			~	2	0
80	[R2001b] f2.GC-6	GlC	13 25 39.11	-43 12 11.6			21.34			~	1	0
81	[R2001b] f2.GC-5	GlC	13 25 40.13	-43 10 13.3			21.96			~	1	0
82	[R2001b] f2.GC-4	GlC	13 25 40.521	-43 07 17.87	21.58	20.84	19.80	19.16	18.41	~	10	0
83	[R2001b] f2.GC-3	GlC	13 25 40.8914082360	-43 08 16.059548796	20.66	20.56	19.84	19.36	18.88	~	12	0
84	[KKF2001] J132542.03-431042.43	GlC	13 25 41.98	-43 10 41.7	20.34	20.08	19.26	18.72	18.22	~	11	0
85	[R2001b] f2.GC-1	GlC	13 25 42.07	-43 12 44.2			23.10			~	3	0
86	[R2001b] f1.GC-33	GlC	13 26 04.67	-42 54 00.8			22.90			~	2	0
87	[R2001b] f1.GC-42	GlC	13 26 05.18	-42 52 34.0			16.59			~	1	0
88	[PFF2004] fs 95	*	13 26 05.27	-42 54 58.1			18.75			~	2	0
89	[R2001b] f1.GC-20	GlC	13 26 05.45	-42 55 22.4			21.51			~	9	0
90	[R2001b] f1.GC-48	GlC	13 26 06.19	-42 54 30.3			18.54			~	1	0
91	[R2001b] f1.GC-32	GlC	13 26 06.37	-42 53 54.4			20.74			~	1	0
92	[R2001b] f1.GC-47	GlC	13 26 06.43	-42 54 21.3			18.88			~	1	0
93	[R2001b] f1.GC-43	GlC	13 26 06.78	-42 52 43.2			17.62			~	1	0
94	[R2001b] f1.GC-41	GlC	13 26 07.05	-42 52 37.5			17.14			~	1	0
95	[R2001b] f1.GC-46	GlC	13 26 07.22	-42 54 20.7			17.43			~	1	0
96	[R2001b] f1.GC-29	GlC	13 26 07.23	-42 51 38.1			17.09			~	1	0
97	[R2001b] f1.GC-45	GlC	13 26 07.65	-42 54 28.3			17.76			~	1	0
98	[VHH81] 36	GlC	13 26 07.7152331040	-42 52 00.209032536	19.42	19.19	18.35	17.81	17.33	~	29	0
99	[R2001b] f1.GC-35	GlC	13 26 07.81	-42 55 05.6			19.95			~	1	0
100	[R2001b] f1.GC-12	GlC	13 26 08.77	-42 51 28.5			19.70			~	2	0
101	[BBP2008] AAT123412	G	13 26 08.96	-42 53 42.4			19.44			~	8	0
102	[HSS2021] 252283	GlC	13 26 09.3599847264	-42 53 17.528866764			19.93			~	9	0
103	[R2001b] f1.GC-40	GlC	13 26 09.63	-42 54 26.2			22.32			~	1	0
104	[HSS2021] 252403	GlC	13 26 09.67	-42 53 16.9			21.27			~	8	0
105	[HSS2021] 252419	GlC	13 26 09.76	-42 50 29.9	22.07	21.57	20.59	19.91	19.09	~	6	0
106	[R2001b] f1.GC-49	GlC	13 26 10.13	-42 54 56.4			19.89			~	1	0
107	[VHH81] 37	GlC	13 26 10.5651604212	-42 53 42.638068584	19.86	19.38	18.43	17.87	17.26	~	35	0
108	[HSS2021] 252710	GlC	13 26 10.60	-42 55 00.0			21.65			~	7	0
109	[R2001b] f1.GC-36	GlC	13 26 11.89	-42 54 51.8			16.95			~	1	0
110	[R2001b] f1.GC-44	GlC	13 26 11.93	-42 53 02.9			18.65			~	1	0
111	[HGH2004] 201.55859-42.91057	GlC	13 26 14.14	-42 54 37.6			20.91			~	3	0
112	[R2001b] f1.GC-28	GlC	13 26 14.46	-42 49 34.1			20.20			~	1	0
113	[R2001b] f1.GC-10	GlC	13 26 14.80	-42 50 09.1			20.80			~	2	0
114	[R2001b] f1.GC-50	GlC	13 26 14.97	-42 55 21.4			17.57			~	1	0
115	[R2001b] f1.GC-22	*	13 26 15.8663359440	-42 55 00.861593916	19.02	18.78	18.02	17.58	17.14	~	10	0
116	[R2001b] f1.GC-30	GlC	13 26 16.36	-42 54 28.5			21.37			~	1	0
117	[R2001b] f1.GC-31	GlC	13 26 17.40	-42 54 14.5			19.24			~	1	0
118	[FG2000b] 4	GlC	13 26 19.88	-42 49 11.5		21.19	21.07			~	5	0
119	[R2001b] f1.GC-38	GlC	13 26 20.06	-42 55 22.8			21.84			~	1	0
120	[HSS2021] 257372	GlC	13 26 21.10	-42 48 41.4	21.53	20.82	19.75	19.13	18.48	~	6	0
121	[HSS2021] 257498	GlC	13 26 21.36	-42 49 59.6			20.79			~	4	0
122	[HSS2021] 257829	GlC	13 26 21.9749864304	-42 53 45.485962692	20.52	20.41	19.68	19.23	18.75	~	7	0
123	[HSS2021] 257833	GlC	13 26 21.9878580744	-42 54 26.374655916	20.73	20.60	19.87	19.38	18.93	~	5	0
124	[HSS2021] 258671	GlC	13 26 23.7648774888	-42 54 01.055364444	19.67	19.30	18.41	17.87	17.32	~	20	0
125	[HGH2004] 201.60613-42.85208	GlC	13 26 25.46	-42 51 07.6			21.15			~	4	0
126	[R2001b] f1.GC-1	GlC	13 26 26.32	-42 48 55.8			19.58			~	3	0
127	[R2001b] f1.GC-39	GlC	13 26 26.66	-42 55 19.3			17.01			~	1	0
128	[R2001b] f1.GC-3	GlC	13 26 26.99	-42 49 50.4			22.41			~	3	0
129	[R2001b] f1.GC-4	GlC	13 26 28.13	-42 51 29.5			21.02			~	2	0
130	[FG2000b] 5	GlC	13 26 28.27	-42 50 03.9		21.23	21.19			~	3	0
131	[HSS2021] 261052	GlC	13 26 28.87	-42 52 35.9	20.32	20.17	19.42	18.96	18.43	~	5	0
132	[R2001b] f1.GC-2	GlC	13 26 29.01	-42 49 44.7			20.77			~	3	0
133	[R2001b] f1.GC-27	GlC	13 26 30.45	-42 52 10.8			18.33			~	1	0
134	[HSS2021] 263348	GlC	13 26 33.52	-42 51 00.6	21.28	20.78	19.86	19.28	18.70	~	6	0
135	[R2001b] f1.GC-6	GlC	13 26 40.76	-42 50 18.2			21.10			~	2	0
136	NGC 5139	GlC	13 26 47.28	-47 28 46.1						~	3677	0
137	C 1353-269	GlC	13 56 21.702	-27 10 03.00						~	146	0
138	ESO 455-23	GlC	17 35 47.80	-30 28 11.0						~	285	0
139	GCl 124	GlC	23 06 44.48	+12 46 19.2		15.6				~	307	1

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