2010A&A...512A..35P

Query : 2010A&A...512A..35P

2010A&A...512A..35P - Astronomy and Astrophysics, volume 512A35-35 (2010/3-1)

On the fundamental line of galactic and extragalactic globular clusters.

PASQUATO M. and BERTIN G.

Abstract (from CDS):

In a previous paper, we found that globular clusters in our Galaxy lie close to a line in the (logR_e, SB_e, logσ) parameter space, with a moderate degree of scatter and remarkable axi-symmetry. This implies that a purely photometric scaling law exists, that can be obtained by projecting this line onto the (logR_e, SB_e) plane. These photometric quantities are readily available for large samples of clusters, as opposed to stellar velocity dispersion data. We study a sample of 129 Galactic and extragalactic clusters on this photometric plane in the V-band. We search for a linear relation between SB_e and logR_e and study how the scatter around the best-fit relation is influenced by both age and dynamical environment. We interpret our results in terms of testing the evolutionary versus primordial origin of the fundamental line. We perform a detailed analysis of surface brightness profiles, which allows us to present a catalogue of structural properties without relying on a given dynamical model. We find a linear relation between SB_e and logR_e, in the form SB_e=(5.25±0.44)logR_e+(15.58±0.28), where SB_e is measured in mag/arcsec² and R_e in parsec. Both young and old clusters follow the scaling law, which has a scatter of approximately 1 mag in SB_e. However, young clusters display more of a scatter and a clear trend in this with age, which old clusters do not. This trend becomes tighter if cluster age is measured in units of the cluster half-light relaxation time. Two-body relaxation therefore plays a major role, together with passive stellar population evolution, in shaping the relation between SB_e, logR_e, and cluster age. We argue that the logR_e-SB_e relation and hence the fundamental line scaling law does not have a primordial origin at cluster formation, but is rather the result of a combination of stellar evolution and collisional dynamical evolution.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: general - Galaxy: structure

Simbad objects: 156

Full paper

View the references in ADS

Number of rows : 156

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	NGC 104	GlC	00 24 05.359	-72 04 53.20			4.09			~	4158	0
2	ESO 28-19	Cl*	00 24 45.98	-72 47 37.9		11.6	12.05			~	152	0
3	NGC 121	GlC	00 26 49.0	-71 32 10		11.2	11.24			~	330	0
4	NGC 152	OpC	00 32 56.76	-73 06 56.4	13.37	13.05	12.26		11.13	~	96	0
5	NGC 176	Cl*	00 35 58.68	-73 09 56.5	12.76	13.06	13.01		13.09	~	33	0
6	NAME SMC	G	00 52 38.0	-72 48 01		2.79	2.2			~	12317	1
7	NGC 288	GlC	00 52 45.24	-26 34 57.4		10	8.13			~	1130	0
8	NGC 361	OpC	01 02 11.11	-71 36 25.3	12.86	12.43	11.77		10.70	~	105	0
9	NGC 362	GlC	01 03 14.26	-70 50 55.6			6.58			~	1167	0
10	NGC 411	Cl*	01 07 55.64	-71 46 03.1	13.05	12.63	12.10		11.11	~	107	0
11	NGC 416	Cl*	01 07 59.03	-72 21 20.5	12.73	12.55	11.76		10.71	~	156	1
12	NGC 458	OpC	01 14 52.94	-71 33 00.0	11.86	11.85	11.66		11.23	~	79	0
13	NAME Fornax H1	Cl*	02 37 02.1	-34 11 00			16.59			~	107	0
14	NAME Fornax H2	GlC	02 38 44.24	-34 48 30.5		14.5				~	93	0
15	NAME Fornax H3	GlC	02 39 48.16	-34 15 28.6		13.59				~	131	0
16	NAME Fornax H4	GlC	02 40 07.697	-34 32 10.59		15.18	13.91	14.08		~	112	0
17	NAME Fornax H5	GlC	02 42 21.111	-34 06 05.80		14.5				~	101	0
18	NGC 1261	GlC	03 12 16.21	-55 12 58.4			8.63			~	579	0
19	Cl Pal 1	GlC	03 33 20.04	+79 34 51.8		17.2				~	267	1
20	ACO S 373	ClG	03 38 29.4	-35 27 08						~	2029	0
21	NGC 1466	GlC	03 44 32.71	-71 40 18.0		11.6	11.59			~	166	0
22	NGC 1841	GlC	04 45 24.38	-83 59 53.3		12.23	11.43			~	190	0
23	NGC 1711	Cl*	04 50 37.320	-69 59 01.72		11.22	11.10			~	115	0
24	NGC 1754	Cl*	04 54 18.080	-70 26 32.58		12.32	11.57			~	96	0
25	NGC 1777	Cl*	04 55 48	-74 17.0		13.40	12.80			~	44	0
26	NGC 1786	Cl*	04 59 07.470	-67 44 45.44		10.1				~	152	0
27	HD 268850	AB*	05 02 21.4730341272	-66 06 38.294439372		11.83	11.55	12.43		~	89	0
28	NGC 1805	GlC	05 02 21.690	-66 06 39.43						~	115	0
29	NGC 1818	GlC	05 04 13.300	-66 26 05.47						~	279	0
30	NGC 1835	Cl*	05 05 09.210	-69 24 20.96		11.314	10.596			~	173	0
31	NGC 1831	GlC	05 06 16.12	-64 55 06.9		11.52	11.18			~	167	0
32	NGC 1847	Cl*	05 07 08.200	-68 58 15.49		12.508	12.469			~	90	0
33	NGC 1850	Cl*	05 08 50.190	-68 45 35.65		8.84	8.96			~	298	1
34	NGC 1856	Cl*	05 09 30.290	-69 07 45.08		10.40	10.06			~	163	0
35	NGC 1851	GlC	05 14 06.76	-40 02 47.6						~	1529	0
36	NGC 1868	GlC	05 14 36.60	-63 57 25.7						~	123	0
37	NGC 1898	As*	05 16 45.380	-69 39 16.76		12.62	11.86			~	104	0
38	NGC 1916	Cl*	05 18 37.87	-69 24 22.9		11.16	10.38			~	94	0
39	NAME LMC	G	05 23 34.6	-69 45 22			0.4			~	19090	0
40	M 79	GlC	05 24 10.59	-24 31 27.3			8.16			~	883	0
41	2MASX J05283953-7337514	GlC	05 28 39.531	-73 37 51.45		14.14	13.42			~	52	0
42	NGC 2005	Cl*	05 30 08.500	-69 45 14.42		12.30	11.57			~	103	0
43	NGC 2004	Cl*	05 30 41.340	-67 17 21.83		9.6				~	281	0
44	NGC 2019	Cl*	05 31 56.48	-70 09 32.5		10.9	10.86			~	124	0
45	NGC 2011	Cl*	05 32 19	-67 31.3		10.62	10.58			~	74	0
46	NGC 2031	GlC	05 33 41.440	-70 59 14.54		11.09	10.83			~	75	0
47	NGC 2100	Cl*	05 42 07.200	-69 12 26.99						~	195	0
48	NGC 2121	Cl*	05 48 13.190	-71 28 52.00		13.21	12.37			~	134	0
49	NGC 2136	Cl*	05 53 01.800	-69 29 24.24		10.99	10.70			~	121	1
50	NGC 2157	Cl*	05 57 35.430	-69 11 48.67		10.35	10.16			~	120	0
51	NGC 2153	Cl*	05 57 51.970	-66 24 02.07		13.74	13.05			~	25	0
52	NGC 2159	GlC	05 57 57	-68 37.4		11.66	11.38			~	46	0
53	NGC 2173	GlC	05 57 58	-72 58.7		12.74	11.88			~	148	0
54	NGC 2155	Cl*	05 58 32.070	-65 28 38.62		13.41	12.60			~	107	0
55	NGC 2172	OpC	06 00 06.130	-68 38 11.39		11.93	11.75			~	46	0
56	NGC 2162	GlC	06 00 30.21	-63 43 18.2		13.38	12.70			~	79	0
57	NGC 2193	Cl*	06 06 17.31	-65 05 55.5		14.13	13.42			~	48	0
58	ESO 86-61	Cl*	06 08 15	-62 59.3		14.94	14.15			~	38	0
59	NGC 2213	Cl*	06 10 42.000	-71 31 43.99						~	98	0
60	NGC 2210	GlC	06 11 31.296	-69 07 17.04		10.9	10.94			~	196	0
61	NGC 2214	OpC	06 12 57	-68 15.6		11.04	10.93			~	119	0
62	NAME Hodge 11	GlC	06 14 22.92	-69 50 54.9		12.57	11.93			~	117	0
63	NGC 2231	GlC	06 20 43.129	-67 31 06.96		13.87	13.20			~	62	0
64	NGC 2249	GlC	06 25 49	-68 55.2		12.66	12.23			~	72	0
65	NGC 2257	Cl*	06 30 12.62	-64 19 40.0		13.24	12.62			~	228	0
66	NGC 2419	GlC	07 38 08.51	+38 52 54.9			10.05			~	998	0
67	NGC 2808	GlC	09 12 03.10	-64 51 48.6						~	1540	0
68	NGC 3201	GlC	10 17 36.82	-46 24 44.9						~	1001	0
69	NGC 4147	GlC	12 10 06.149	+18 32 31.78		11.45	10.74			~	616	0
70	NGC 4372	GlC	12 25 45.43	-72 39 32.7		10.86	9.85			~	327	0
71	M 68	GlC	12 39 27.98	-26 44 38.6			7.96			~	1069	0
72	M 53	GlC	13 12 55.25	+18 10 05.4			7.79			~	907	0
73	NGC 5053	GlC	13 16 27.09	+17 42 00.9			9.96			~	675	0
74	NGC 5139	GlC	13 26 47.28	-47 28 46.1						~	3677	0
75	M 3	GlC	13 42 11.62	+28 22 38.2			6.39			~	2593	0
76	NGC 5286	GlC	13 46 26.81	-51 22 27.3						~	485	0
77	NGC 5466	GlC	14 05 27.29	+28 32 04.0			9.70			~	887	0
78	NGC 5634	GlC	14 29 37.28	-05 58 35.1		10.69	10.05			~	333	0
79	NGC 5694	GlC	14 39 36.52	-26 32 18.0						~	323	0
80	IC 4499	GlC	15 00 18.57	-82 12 49.6			8.56			~	375	0
81	NGC 5824	GlC	15 03 58.612	-33 04 06.70		10.28	9.56			~	441	0
82	Cl Pal 5	GlC	15 16 05.30	-00 06 41.0		15.1				~	797	1
83	NGC 5897	GlC	15 17 24.40	-21 00 36.4		10.16	8.52			~	424	0
84	M 5	GlC	15 18 33.22	+02 04 51.7			5.95			~	2095	0
85	NGC 5986	GlC	15 46 03.00	-37 47 11.1			6.92			~	408	0
86	M 80	GlC	16 17 02.41	-22 58 33.9						~	780	0
87	M 4	GlC	16 23 35.22	-26 31 32.7						~	1978	0
88	NGC 6101	GlC	16 25 48.12	-72 12 07.9						~	337	0
89	NGC 6139	GlC	16 27 39.987	-38 50 57.03		11.03	9.68			~	231	0
90	M 107	GlC	16 32 31.86	-13 03 13.6						~	835	0
91	M 13	GlC	16 41 41.634	+36 27 40.75			5.8			~	2291	0
92	NGC 6229	GlC	16 46 58.641	+47 31 36.38		9.38	9.86			~	397	0
93	M 12	GlC	16 47 14.18	-01 56 54.7			6.07			~	736	0
94	M 10	GlC	16 57 09.05	-04 06 01.1			4.98			~	857	0
95	NGC 6256	GlC	16 59 32.68	-37 07 17.1						~	182	0
96	M 62	GlC	17 01 12.60	-30 06 44.5						~	668	0
97	M 19	GlC	17 02 37.69	-26 16 04.6		8.45	5.57			~	406	1
98	NGC 6284	GlC	17 04 28.747	-24 45 51.22		10.72	7.43			~	302	0
99	NGC 6287	GlC	17 05 09.4906767360	-22 42 28.099250172		11.49	10.30			~	240	0
100	NGC 6293	GlC	17 10 10.42	-26 34 54.2						~	309	0
101	NGC 6304	GlC	17 14 32.25	-29 27 43.3						~	394	0
102	NGC 6316	GlC	17 16 37.42	-28 08 24.0		10.33	9.03			~	247	0
103	M 92	GlC	17 17 07.39	+43 08 09.4			6.52			~	2240	0
104	NGC 6325	GlC	17 17 59.27	-23 45 57.7						~	190	0
105	M 9	GlC	17 19 11.78	-18 30 58.5		9.36	8.42			~	348	0
106	NGC 6342	GlC	17 21 10.14	-19 35 14.7			10.01			~	310	0
107	NGC 6356	GlC	17 23 34.99	-17 48 46.9		10.01	7.42			~	372	1
108	NGC 6366	GlC	17 27 44.24	-05 04 47.5						~	344	0
109	NGC 6362	GlC	17 31 54.99	-67 02 54.0						~	637	0
110	NGC 6388	GlC	17 36 17.461	-44 44 08.34						~	988	1
111	M 14	GlC	17 37 36.15	-03 14 45.3		9.55	5.73			~	420	0
112	NGC 6401	GlC	17 38 36.93	-23 54 31.5		11.31	10.71			~	203	0
113	NGC 6397	GlC	17 40 42.09	-53 40 27.6			5.17			~	2103	0
114	Cl Terzan 5	Cl*	17 48 05.00	-24 46 48.0						~	948	1
115	NGC 6440	GlC	17 48 52.67	-20 21 34.5						~	592	0
116	NGC 6441	GlC	17 50 13.06	-37 03 05.2						~	940	0
117	NGC 6517	GlC	18 01 50.376	-08 57 34.39		11.08				~	215	0
118	NGC 6522	GlC	18 03 34.08	-30 02 02.3						~	569	0
119	NGC 6535	GlC	18 03 50.51	-00 17 51.5			9.85			~	320	0
120	NGC 6528	GlC	18 04 49.61	-30 03 20.8		12.12	10.65			~	561	0
121	NGC 6539	GlC	18 04 49.74	-07 35 09.1						~	247	0
122	NGC 6541	GlC	18 08 02.36	-43 42 53.6						~	409	0
123	NGC 6553	GlC	18 09 15.68	-25 54 27.9		9.08				~	644	0
124	IC 1276	GlC	18 10 44.26	-07 12 27.3						~	146	0
125	NGC 6569	GlC	18 13 38.88	-31 49 35.2		10.78	9.47			~	276	0
126	NGC 6584	GlC	18 18 37.60	-52 12 56.8			8.17			~	317	0
127	NGC 6624	GlC	18 23 40.51	-30 21 39.7						~	939	1
128	M 28	GlC	18 24 32.89	-24 52 11.4						~	821	0
129	NGC 6638	GlC	18 30 56.25	-25 29 47.1		10.81	9.68			~	258	0
130	M 69	GlC	18 31 23.10	-32 20 53.1						~	492	0
131	NGC 6642	GlC	18 31 54.23	-23 28 34.1		11.30	10.24			~	240	0
132	NGC 6652	GlC	18 35 45.63	-32 59 26.6						~	474	0
133	M 22	GlC	18 36 23.94	-23 54 17.1						~	1459	0
134	ESO 591-12	GlC	18 41 29.90	-19 49 33.0						~	130	0
135	M 70	GlC	18 43 12.76	-32 17 31.6						~	421	0
136	NGC 6712	GlC	18 53 04.32	-08 42 21.5						~	550	0
137	M 54	GlC	18 55 03.33	-30 28 47.5						~	1164	0
138	NGC 6723	GlC	18 59 33.15	-36 37 56.1						~	543	0
139	NGC 6752	GlC	19 10 52.11	-59 59 04.4						~	2121	0
140	NGC 6760	GlC	19 11 12.06	+01 01 49.7		11.37	9.78			~	264	0
141	M 56	GlC	19 16 35.57	+30 11 00.5						~	455	0
142	GCl 111	GlC	19 18 02.10	+18 34 18.0						~	138	0
143	Cl Arp 2	GlC	19 28 44.11	-30 21 20.3			12.41			~	384	0
144	M 55	GlC	19 39 59.71	-30 57 53.1			6.49			~	913	0
145	GCl 114	GlC	19 45 14.40	-08 00 26.0			7.54			~	165	0
146	M 75	GlC	20 06 04.841	-21 55 20.14			8.26			~	394	0
147	NGC 6934	GlC	20 34 11.37	+07 24 16.1						~	459	0
148	M 72	GlC	20 53 27.70	-12 32 14.3			8.96			~	465	0
149	NGC 7006	GlC	21 01 29.465	+16 11 16.49			10.46			~	562	0
150	M 15	GlC	21 29 58.33	+12 10 01.2						~	3274	0
151	M 2	GlC	21 33 27.02	-00 49 23.7			6.25			~	1114	1
152	M 30	GlC	21 40 22.12	-23 10 47.5			7.10			~	1121	0
153	Cl Pal 12	GlC	21 46 38.84	-21 15 09.4			11.89			~	548	0
154	GCl 124	GlC	23 06 44.48	+12 46 19.2		15.6				~	307	1
155	NGC 7492	GlC	23 08 26.68	-15 36 41.3			10.48			~	330	0
156	NAME Galactic Bulge	reg	~	~						~	4794	0

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