2017A&A...607A..44B

Query : 2017A&A...607A..44B

2017A&A...607A..44B - Astronomy and Astrophysics, volume 607A, 44-44 (2017/11-1)

NGC 6535: the lowest mass Milky Way globular cluster with a Na-O anti-correlation?. Cluster mass and age in the multiple population context.

BRAGAGLIA A., CARRETTA E., D'ORAZI V., SOLLIMA A., DONATI P., GRATTON R.G. and LUCATELLO S.

Abstract (from CDS):

To understand globular clusters (GCs) we need to comprehend how their formation process was able to produce their abundance distribution of light elements. In particular, we seek to figure out which stars imprinted the peculiar chemical signature of GCs. One of the best ways is to study the light-element anti-correlations in a large sample of GCs that are analysed homogeneously. As part of our spectroscopic survey of GCs with FLAMES, we present here the results of our study of about 30 red giant member stars in the low-mass, low-metallicity Milky Way cluster NGC 6535. We measured the metallicity (finding [Fe/H]=-1.95, rms=0.04dex in our homogeneous scale) and other elements of the cluster and, in particular, we concentrate here on O and Na abundances. These elements define the normal Na-O anti-correlation of classical GCs, making NGC 6535 perhaps the lowest mass cluster with a confirmed presence of multiple populations. We updated the census of Galactic and extragalactic GCs for which a statement on the presence or absence of multiple populations can be made on the basis of high-resolution spectroscopy preferentially, or photometry and low-resolution spectroscopy otherwise; we also discuss the importance of mass and age of the clusters as factors for multiple populations.

Abstract Copyright: © ESO, 2017

Journal keyword(s): stars: abundances - stars: atmospheres - stars: Population II - open clusters and associations: individual: NGC 6535 - globular clusters: general - globular clusters: general

VizieR on-line data: <Available at CDS (J/A+A/607/A44): table2.dat>

Simbad objects: 170

Full paper

View the references in ADS

Number of rows : 170

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2022	#notes
1	Cl Lindsay 1	Cl*	00 03 54	-73 28.3		11.7				~	107	0
2	NGC 104	GlC	00 24 05.359	-72 04 53.20		5.78	4.09			~	3723	0
3	NGC 121	GlC	00 26 49.0	-71 32 10		11.2	11.24			~	291	0
4	NAME SMC	G	00 52 38.0	-72 48 01		2.79	2.2			~	10205	1
5	NGC 288	GlC	00 52 45.24	-26 34 57.4		10	8.13			~	984	0
6	NGC 339	OpC	00 57 48.90	-74 28 00.2	13.23	12.94	12.21		11.20	~	131	0
7	NGC 362	GlC	01 03 14.26	-70 50 55.6			6.58			~	1012	0
8	NGC 416	Cl*	01 07 59.0	-72 21 20	12.73	12.55	11.76		10.71	~	136	1
9	NGC 419	OpC	01 08 17.79	-72 53 02.8	11.41	11.16	10.50		9.34	~	251	0
10	NGC 752	OpC	01 56 54	+37 47.6						~	584	0
11	NAME Fornax H1	Cl*	02 37 02.1	-34 11 00			16.59			~	100	0
12	NAME Fornax H2	GlC	02 38 44.24	-34 48 30.5		14.5				~	88	0
13	NAME Fornax H3	GlC	02 39 48.16	-34 15 28.6		13.59				~	117	0
14	NAME Fornax Dwarf Spheroidal	G	02 39 59.3	-34 26 57		9.02	7.4			~	1613	1
15	NAME Fornax H5	GlC	02 42 21.111	-34 06 05.80		14.5				~	94	0
16	NAME Magellanic Clouds	GrG	03 00	-71.0						~	6285	1
17	NGC 1261	GlC	03 12 16.21	-55 12 58.4			8.63			~	470	0
18	Cl Pal 1	GlC	03 33 20.04	+79 34 51.8		17.2				~	219	1
19	NGC 1651	GlC	04 37 32.530	-70 35 08.71		12.99	12.28			~	111	0
20	NGC 1786	Cl*	04 59 07.470	-67 44 45.44		10.1				~	139	0
21	NGC 1783	GlC	04 59 08.590	-65 59 15.84		10.9	10.93			~	236	0
22	NGC 1806	GlC	05 02 11.180	-67 59 05.89		11.1				~	149	0
23	NGC 1866	GlC	05 13 38.920	-65 27 52.75						~	401	0
24	NGC 1851	GlC	05 14 06.76	-40 02 47.6						~	1330	0
25	NAME LMC	G	05 23 34.6	-69 45 22			0.4			~	16002	1
26	M 79	GlC	05 24 10.59	-24 31 27.3		9.21	8.16			~	762	0
27	NGC 1978	GlC	05 28 45.330	-66 14 12.04		10.7	10.70			~	290	0
28	NGC 2173	GlC	05 57 58	-72 58.7		12.74	11.88			~	133	0
29	NGC 2210	GlC	06 11 31.296	-69 07 17.04		10.9	10.94			~	179	0
30	NGC 2257	Cl*	06 30 12	-64 19.6		13.24	12.62			~	209	0
31	NGC 2298	GlC	06 48 59.41	-36 00 19.1		10.77	8.89			~	459	0
32	NGC 2419	GlC	07 38 08.51	+38 52 54.9			10.05			~	876	0
33	NGC 2420	OpC	07 38 24	+21 34.5		9.0	8.3			~	437	0
34	Cl Berkeley 39	OpC	07 46 48	-04 39.9						~	165	1
35	NGC 2682	OpC	08 51 23	+11 48.8						~	2174	0
36	NGC 2808	GlC	09 12 03.10	-64 51 48.6						~	1332	0
37	NAME E 3	GlC	09 20 57.07	-77 16 54.8						~	148	0
38	NAME Sextans C	GlC	10 05 30.96	+00 04 15.4		15.5	13.9			~	307	1
39	NGC 3201	GlC	10 17 36.82	-46 24 44.9						~	797	0
40	NGC 4147	GlC	12 10 06.149	+18 32 31.78		11.45	10.74			~	536	0
41	NGC 4372	GlC	12 25 45.43	-72 39 32.7		10.86	9.85			~	282	0
42	Cl Collinder 261	OpC	12 38 05	-68 22.6			10.7			~	171	0
43	C 1235-509	GlC	12 38 40.20	-51 09 01.0						~	345	0
44	M 68	GlC	12 39 27.98	-26 44 38.6		10.26	7.96			~	936	0
45	Cl Trumpler 20	OpC	12 39 32	-60 38.2			10.1			~	89	0
46	NGC 4833	GlC	12 59 33.92	-70 52 35.4		8.72	7.79			~	382	0
47	M 53	GlC	13 12 55.25	+18 10 05.4		8.95	7.79			~	773	0
48	NGC 5053	GlC	13 16 27.09	+17 42 00.9			9.96			~	577	0
49	NGC 5139	GlC	13 26 47.28	-47 28 46.1		6.12	5.33			~	3231	0
50	M 3	GlC	13 42 11.62	+28 22 38.2			6.39			~	2374	0
51	NGC 5286	GlC	13 46 26.81	-51 22 27.3		9.18	8.31			~	401	0
52	NGC 5466	GlC	14 05 27.29	+28 32 04.0		10.5	9.70			~	777	0
53	NGC 5634	GlC	14 29 37.28	-05 58 35.1		10.69	10.05			~	277	0
54	NGC 5694	GlC	14 39 36.52	-26 32 18.0		11.58	10.89			~	284	0
55	NGC 5824	GlC	15 03 58.612	-33 04 06.70		10.28	9.56			~	378	0
56	NAME Serpens Dwarf	GlC	15 16 05.30	-00 06 41.0		15.1				~	682	1
57	NGC 5897	GlC	15 17 24.40	-21 00 36.4		10.16	8.52			~	361	0
58	M 5	GlC	15 18 33.22	+02 04 51.7		7.34	5.95			~	1872	0
59	NGC 5927	GlC	15 28 00.69	-50 40 22.9		10.13	8.86			~	429	0
60	NGC 5986	GlC	15 46 03.00	-37 47 11.1			6.92			~	335	0
61	Cl Trumpler 23	OpC	16 00 52	-53 32.3			11.2			~	35	0
62	GCl 38	GlC	16 10 59.00	+14 57 42.0						~	345	0
63	M 80	GlC	16 17 02.41	-22 58 33.9						~	667	0
64	M 4	GlC	16 23 35.22	-26 31 32.7						~	1758	0
65	NGC 6101	GlC	16 25 48.12	-72 12 07.9		10.90	10.08			~	265	0
66	NGC 6139	GlC	16 27 39.987	-38 50 57.03		11.03	9.68			~	193	0
67	M 107	GlC	16 32 31.86	-13 03 13.6		9.96	8.85			~	744	0
68	M 13	GlC	16 41 41.634	+36 27 40.75			5.8			~	2099	0
69	M 12	GlC	16 47 14.18	-01 56 54.7		8.52	6.07			~	623	0
70	M 10	GlC	16 57 09.05	-04 06 01.1			4.98			~	741	0
71	M 62	GlC	17 01 12.60	-30 06 44.5		8.55	7.39			~	560	0
72	M 19	GlC	17 02 37.69	-26 16 04.6		8.45	5.57			~	341	1
73	NGC 6304	GlC	17 14 32.25	-29 27 43.3		10.33	9.03			~	325	0
74	M 92	GlC	17 17 07.39	+43 08 09.4			6.52			~	1997	0
75	M 9	GlC	17 19 11.78	-18 30 58.5		9.36	8.42			~	294	0
76	NGC 6342	GlC	17 21 10.14	-19 35 14.7		11.25	10.01			~	263	0
77	NGC 6352	GlC	17 25 29.11	-48 25 19.8		9.95	8.87			~	366	0
78	NGC 6366	GlC	17 27 44.24	-05 04 47.5						~	283	0
79	ESO 455-11	GlC	17 31 05.20	-29 58 54.0						~	153	0
80	NGC 6362	GlC	17 31 54.99	-67 02 54.0		9.72	8.86			~	530	0
81	NGC 6388	GlC	17 36 17.461	-44 44 08.34		7.40				~	860	1
82	NGC 6397	GlC	17 40 42.09	-53 40 27.6		7.39	5.17			~	1876	1
83	ESO 520-21	GlC	17 43 42.20	-26 13 21.0						~	163	0
84	NGC 6426	GlC	17 44 54.71	+03 10 12.5						~	202	0
85	Cl Terzan 5	Cl*	17 48 05.00	-24 46 48.0						~	760	1
86	NGC 6440	GlC	17 48 52.67	-20 21 34.5		12.01	10.10			~	506	1
87	NGC 6441	GlC	17 50 13.06	-37 03 05.2		9.26	8.00			~	828	0
88	NGC 6496	GlC	17 59 03.68	-44 15 57.4		9.96				~	203	0
89	Cl* NGC 6535 TCA 5-2334	*	18 03 28.7578690680	-00 17 44.062688292			17.022		15.591	~	2	0
90	NGC 6522	GlC	18 03 34.08	-30 02 02.3		10.68	9.48			~	496	1
91	Cl* NGC 6535 TCA 5-2369	*	18 03 37.9902526608	-00 16 08.849785728			17.197	15.93	15.814	~	2	0
92	Cl* NGC 6535 TCA 5-2416	*	18 03 38.1367895712	-00 15 26.766015012			15.927	15.55	14.530	~	2	0
93	Cl* NGC 6535 TCA 5-2320	*	18 03 40.3445857656	-00 18 10.986076980			16.631		15.176	~	2	0
94	Cl* NGC 6535 TCA 5-2304	*	18 03 40.9681703424	-00 18 48.380172768			17.649		16.343	~	2	0
95	Cl* NGC 6535 TCA 5-2326	*	18 03 41.2134575664	-00 18 03.122693784			16.989		15.469	~	2	0
96	Cl* NGC 6535 TCA 5-2273	*	18 03 43.1124810024	-00 16 22.669944600			16.770		15.457	~	2	0
97	Cl* NGC 6535 TCA 5-659	*	18 03 43.4801907984	-00 20 34.803026016			16.359	16.11	14.960	~	2	0
98	Cl* NGC 6535 TCA 5-819	*	18 03 44.0439955920	-00 19 55.387028784			17.216		15.767	~	2	0
99	Cl* NGC 6535 TCA 5-24	*	18 03 44.0922846768	-00 18 31.100323824			17.453		16.150	~	2	0
100	Cl* NGC 6535 TCA 5-1155	*	18 03 44.6335077480	-00 18 03.781099908			17.671		16.385	~	2	0
101	Cl* NGC 6535 TCA 5-803	*	18 03 45.3793054392	-00 20 13.066022400			19.095		17.835	~	2	0
102	Cl* NGC 6535 TCA 2-10	*	18 03 46.200	-00 18 49.69			16.942		15.572	~	2	0
103	Cl* NGC 6535 TCA 2-3	*	18 03 46.5091062768	-00 18 05.474909916			15.676	15.51	14.332	~	2	0
104	Cl* NGC 6535 TCA 5-1208	*	18 03 46.6861745928	-00 16 30.879220692			17.172		15.817	~	2	0
105	Cl* NGC 6535 TCA 2-1	*	18 03 47.4128128104	-00 18 23.481498600		14.70	12.84	12.41	10.870	~	2	0
106	Cl* NGC 6535 TCA 2-2	*	18 03 47.7162591288	-00 18 05.992129188			15.416	15.21	14.006	~	2	0
107	Cl* NGC 6535 TCA 3-3	*	18 03 47.7345158736	-00 17 23.507318472			14.884	14.59	13.439	~	2	0
108	Cl* NGC 6535 TCA 2-14	*	18 03 48.0462637104	-00 18 36.637657128			17.718		16.380	~	2	0
109	Cl* NGC 6535 TCA 5-666	*	18 03 48.6192488376	-00 20 26.720189340			17.713		16.370	~	2	0
110	Cl* NGC 6535 TCA 3-12	*	18 03 48.9541279944	-00 17 33.199259352			17.195		15.865	~	2	0
111	Cl* NGC 6535 TCA 4-11	*	18 03 49.0399043472	-00 17 16.089451728			16.780		15.437	~	2	0
112	Cl* NGC 6535 TCA 4-1	*	18 03 49.3257870264	-00 17 05.954954388		15.04	13.67	13.14	11.797	~	2	0
113	Cl* NGC 6535 TCA 1-12	*	18 03 49.6097652696	-00 17 50.615541528			16.443	15.97	15.047	~	2	0
114	Cl* NGC 6535 TCA 5-395	*	18 03 49.840	-00 15 41.79			17.183		15.743	~	2	0
115	NGC 6535	GlC	18 03 50.51	-00 17 51.5		11.35	9.85			~	266	0
116	Cl* NGC 6535 TCA 1-17	*	18 03 50.583	-00 17 53.88			17.032	15.24	15.672	~	2	0
117	Cl* NGC 6535 TCA 4-7	*	18 03 50.8274943360	-00 17 01.541333832			16.037	15.70	14.702	~	2	0
118	Cl* NGC 6535 TCA 5-1601	*	18 03 51.0794533392	-00 14 39.731355600			16.097		14.680	~	2	0
119	Cl* NGC 6535 TCA 1-19	*	18 03 51.391	-00 17 46.72			17.236		15.864	~	2	0
120	Cl* NGC 6535 TCA 1-3	*	18 03 51.987	-00 17 56.58			15.450	14.81	14.106	~	2	0
121	Cl* NGC 6535 TCA 4-3	*	18 03 52.2324076368	-00 16 33.038370876		16.15	15.09	14.60	13.730	~	2	0
122	Cl* NGC 6535 TCA 5-1217	*	18 03 52.236	-00 18 12.99			16.046	15.79	14.668	~	2	0
123	Cl* NGC 6535 TCA 5-647	*	18 03 52.8530195904	-00 20 45.496722516			16.184		14.910	~	2	0
124	Cl* NGC 6535 TCA 4-9	*	18 03 53.1499109352	-00 17 10.169453292		17.15	16.373	15.81	15.073	~	2	0
125	Cl* NGC 6535 TCA 5-1182	*	18 03 53.1714105864	-00 18 24.770502036			15.732	15.41	14.306	~	2	0
126	Cl* NGC 6535 TCA 5-157	*	18 03 54.441	-00 16 44.99			16.285	15.97	14.920	~	2	0
127	Cl* NGC 6535 TCA 5-121	*	18 03 54.6425950992	-00 17 02.627825280			17.343		15.879	~	2	0
128	Cl* NGC 6535 TCA 5-152	*	18 03 54.7591548960	-00 16 06.208794084			16.873		15.428	~	2	0
129	Cl* NGC 6535 TCA 5-102	*	18 03 54.8954081184	-00 18 16.171923024			16.531	15.30	15.173	~	2	0
130	Cl* NGC 6535 TCA 5-1588	*	18 03 55.4988343872	-00 15 02.201318352			15.301		13.857	~	2	0
131	Cl* NGC 6535 TCA 5-1518	*	18 03 55.7819010096	-00 14 15.266495076			17.215		15.760	~	2	0
132	Cl* NGC 6535 TCA 5-62	*	18 03 57.4131471816	-00 17 43.230084684			17.201		15.900	~	2	0
133	Cl* NGC 6535 TCA 5-2006	*	18 03 58.370	-00 14 40.61			14.194		12.539	~	2	0
134	Cl* NGC 6535 TCA 5-99	*	18 03 58.3765126680	-00 18 31.658333796			15.463		13.900	~	2	0
135	Cl* NGC 6535 TCA 5-2048	*	18 04 00.9542605248	-00 18 33.457539492			16.265		14.944	~	2	0
136	NGC 6528	GlC	18 04 49.61	-30 03 20.8		12.12	10.65			~	497	0
137	NGC 6541	GlC	18 08 02.36	-43 42 53.6		8.06	7.32			~	347	1
138	NGC 6553	GlC	18 09 15.68	-25 54 27.9		9.08				~	570	0
139	NGC 6584	GlC	18 18 37.60	-52 12 56.8		10.32	8.17			~	264	0
140	NGC 6624	GlC	18 23 40.51	-30 21 39.7						~	823	1
141	M 28	GlC	18 24 32.89	-24 52 11.4						~	715	0
142	M 69	GlC	18 31 23.10	-32 20 53.1		9.32	8.31			~	434	1
143	NGC 6652	GlC	18 35 45.63	-32 59 26.6		10.64	9.75			~	389	0
144	M 22	GlC	18 36 23.94	-23 54 17.1		7.16	6.17			~	1295	0
145	M 70	GlC	18 43 12.76	-32 17 31.6		9.76	9.06			~	354	0
146	NGC 6705	OpC	18 51 04	-06 16.3		6.32	5.8			~	382	0
147	NGC 6712	GlC	18 53 04.32	-08 42 21.5		9.85	8.69			~	491	0
148	NAME SDG	G	18 55 03.1	-30 28 42		4.5	3.6			~	1948	2
149	M 54	GlC	18 55 03.33	-30 28 47.5						~	995	0
150	NGC 6717	GlC	18 55 06.04	-22 42 05.3		11.29	10.35			~	219	0
151	NGC 6723	GlC	18 59 33.15	-36 37 56.1						~	465	0
152	Cl Berkeley 81	OpC	19 01 41	-00 27.2						~	62	0
153	NGC 6752	GlC	19 10 52.11	-59 59 04.4		6.96	6.28			~	1894	0
154	M 56	GlC	19 16 35.57	+30 11 00.5		8.90				~	389	0
155	Cl Terzan 7	GlC	19 17 43.92	-34 39 27.8						~	396	0
156	NGC 6791	OpC	19 20 53	+37 46.7		10.52	9.5			~	956	0
157	NGC 6802	OpC	19 30 36.0	+20 15 34		10.07	8.8			~	87	0
158	M 55	GlC	19 39 59.71	-30 57 53.1			6.49			~	807	0
159	Cl Terzan 8	GlC	19 41 44.41	-33 59 58.1			11.54			~	289	0
160	M 71	GlC	19 53 46.49	+18 46 45.1		7.91	6.1			~	1072	0
161	M 75	GlC	20 06 04.841	-21 55 20.14			8.26			~	338	0
162	NGC 6934	GlC	20 34 11.37	+07 24 16.1		10.48	9.75			~	388	0
163	M 72	GlC	20 53 27.70	-12 32 14.3		9.95	8.96			~	392	0
164	NGC 7006	GlC	21 01 29.465	+16 11 16.49			10.46			~	502	0
165	M 15	GlC	21 29 58.33	+12 10 01.2		3				~	3021	0
166	M 2	GlC	21 33 27.02	-00 49 23.7			6.25			~	963	1
167	M 30	GlC	21 40 22.12	-23 10 47.5			7.10			~	978	0
168	Cl Pal 12	GlC	21 46 38.84	-21 15 09.4			11.89			~	487	0
169	NGC 7492	GlC	23 08 26.68	-15 36 41.3			10.48			~	279	0
170	NGC 7789	OpC	23 57 20	+56 43.6		7.68	6.7			~	481	0

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