CDS

2008A&A...486..941A

Query : 2008A&A...486..941A

2008A&A...486..941A - Astronomy and Astrophysics, volume 486, 941-950 (2008/8-2)

Abundance variations in the globular cluster M71 (NGC 6838).

ALVES-BRITO A., SCHIAVON R.P., CASTILHO B. and BARBUY B.

Abstract (from CDS):

Abundance variations in moderately metal-rich globular clusters can give clues about the formation and chemical enrichment of globular clusters. CN, CH, Na, Mg and Al indices in spectra of 89 stars of the template metal-rich globular cluster M71 are measured and implications on internal mixing are discussed. Stars from the turn-off up to the Red Giant Branch (0.87<logg<4.65) observed with the GMOS multi-object spectrograph at the Gemini-North telescope are analyzed. Radial velocities, colours, effective temperatures, gravities and spectral indices are determined for the sample. Previous findings related to the CN bimodality and CN-CH anticorrelation in stars of M71 are confirmed. We also find a CN-Na correlation, and Al-Na, as well as an Mg2-Al anticorrelation. A combination of convective mixing and a primordial pollution by AGB or massive stars in the early stages of globular cluster formation is required to explain the observations.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: individual: M71 - stars: abundances - stars: atmospheres - Galaxy: abundances

VizieR on-line data: <Available at CDS (J/A+A/486/941): table1.dat table3.dat table4.dat table5.dat>

Nomenclature: Table 1: Cl* NGC 6838 ASC NNNNN N=145 among (Nos 3-12299).

Simbad objects: 150

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Number of rows : 150
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 3839 0
2 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 1964 0
3 LAWD 74 WD* 19 20 34.9229289504 -07 40 00.065957592 11.553 12.345 12.290 12.229 12.164 DBQA5 225 0
4 [KGS2008] J195335.2+184557 RG* 19 53 35.1 +18 45 57   15.02 14.05   12.99 ~ 6 0
5 Cl* NGC 6838 KC 303 * 19 53 35.3 +18 46 22   16.82 16.01     ~ 2 0
6 Cl* NGC 6838 ASC 3 * 19 53 35.6 +18 46 35   18.03 16.92     ~ 1 0
7 Cl* NGC 6838 ASC 4 * 19 53 35.6 +18 47 22   18.55 17.59     ~ 1 0
8 Cl* NGC 6838 KC 127 HB* 19 53 35.97024 +18 47 34.9908   15.51 14.44     ~ 3 0
9 Cl* NGC 6838 ASC 1035 * 19 53 36.0 +18 46 41   18.52 17.57     ~ 1 0
10 Cl* NGC 6838 KC 125 * 19 53 36.1 +18 48 02   16.44 15.32     ~ 2 0
11 Cl* NGC 6838 ASC 1926 RG* 19 53 36.147 +18 47 26.40   18.29 17.28     ~ 2 0
12 Cl* NGC 6838 KC 141 * 19 53 36.4 +18 45 32   16.57 15.34     ~ 4 0
13 Cl* NGC 6838 ASC 206 * 19 53 38.0 +18 46 36   17.7 16.83     ~ 1 0
14 Cl* NGC 6838 ASC 207 RG* 19 53 38.1401322576 +18 47 42.583074972   17.75 17.00     ~ 2 0
15 NGC 6838 1079 RG* 19 53 38.1787186920 +18 46 49.784450304   15.42 13.99     ~ 10 0
16 Cl* NGC 6838 KC 128 * 19 53 38.2411152264 +18 47 25.067955444   16.56 15.19     ~ 2 0
17 Cl* NGC 6838 ASC 2984 * 19 53 38.5 +18 46 34   17.86 17.02     ~ 1 0
18 Cl* NGC 6838 KC 300 * 19 53 38.5 +18 46 49   17.23 16.11     ~ 2 0
19 NGC 6838 1109 * 19 53 38.5753878912 +18 46 30.447694884   16.11 14.87     ~ 19 0
20 Cl* NGC 6838 KC 298 * 19 53 38.6 +18 47 43   17.37 16.15     ~ 2 0
21 Cl* NGC 6838 ASC 232 * 19 53 39.0 +18 46 29   17.9 16.86     ~ 4 0
22 Cl* NGC 6838 ASC 751 * 19 53 39.1 +18 47 06   18.67 17.83     ~ 1 0
23 Cl* NGC 6838 ASC 1934 * 19 53 39.3 +18 47 12           ~ 1 0
24 Cl* NGC 6838 ASC 242 RG* 19 53 39.31440 +18 46 37.2072   18.55 17.56     ~ 2 0
25 Cl* NGC 6838 ASC 1060 * 19 53 39.4 +18 46 24     16.95     ~ 3 0
26 Cl* NGC 6838 KC 119 HB* 19 53 39.6193110480 +18 48 56.976319800   15.63 14.52     ~ 3 0
27 Cl* NGC 6838 KC 224 * 19 53 39.7 +18 46 21   15.76 15.13     ~ 2 0
28 Cl* NGC 6838 ASC 1292 * 19 53 39.8 +18 46 41   18.5 17.31     ~ 1 0
29 Cl* NGC 6838 KC 152 RG* 19 53 39.89400 +18 44 22.9200   16.29 15.03     ~ 6 0
30 Cl* NGC 6838 ASC 1936 * 19 53 40.1 +18 46 37   18.4 17.45     ~ 1 0
31 Cl* NGC 6838 KC 223 * 19 53 40.1 +18 46 43   16.5 15.54     ~ 2 0
32 Cl* NGC 6838 ASC 2045 * 19 53 40.3 +18 47 11           ~ 1 0
33 Cl* NGC 6838 ASC 1294 * 19 53 40.3 +18 47 23           ~ 1 0
34 Cl* NGC 6838 ASC 1468 * 19 53 40.605 +18 46 57.28   18.11 17.30     ~ 1 0
35 Cl* NGC 6838 ASC 778 * 19 53 40.8 +18 47 15           ~ 1 0
36 Cl* NGC 6838 ASC 294 * 19 53 41.0 +18 47 41   17.14 16.31     ~ 1 0
37 2MASS J19534103+1846056 AB* 19 53 41.0341710408 +18 46 05.602037268   14.63 13.39     ~ 32 0
38 Cl* NGC 6838 ZDA 4 HB* 19 53 41.0927344968 +18 44 11.215233456   15.47 14.40     ~ 21 0
39 Cl* NGC 6838 ASC 1081 * 19 53 41.3 +18 46 58           ~ 1 0
40 NGC 6838 1075 RG* 19 53 41.5726140216 +18 47 43.035846108   16.14 14.85     ~ 29 0
41 NGC 6838 1059 RG* 19 53 41.788 +18 48 38.46   15.93 14.63     ~ 28 0
42 Cl* NGC 6838 ASC 314 * 19 53 41.8 +18 48 02           ~ 1 0
43 Cl* NGC 6838 ASC 1087 * 19 53 41.9 +18 46 42           ~ 1 0
44 Cl* NGC 6838 ASC 3791 * 19 53 41.9 +18 47 59   17.9 16.83     ~ 1 0
45 Cl* NGC 6838 ASC 792 * 19 53 42.1 +18 47 51   17.67 16.64     ~ 1 0
46 Cl* NGC 6838 ASC 3915 * 19 53 42.2 +18 47 09           ~ 1 0
47 Cl* NGC 6838 ASC 328 * 19 53 42.5 +18 45 11   17.22 16.52     ~ 1 0
48 NGC 6838 1073 RG* 19 53 42.538 +18 47 08.35   15.99 14.79     ~ 22 0
49 Cl* NGC 6838 ASC 3909 * 19 53 42.6 +18 47 25           ~ 1 0
50 2MASS J19534288+1846374 AB* 19 53 42.8853219792 +18 46 37.466827572   14.83 13.70     ~ 16 0
51 Cl* NGC 6838 ASC 4126 * 19 53 43.0 +18 46 24           ~ 1 0
52 Cl* NGC 6838 ASC 1486 * 19 53 43.0 +18 46 50           ~ 1 0
53 Cl* NGC 6838 KC 215 RG* 19 53 43.24224 +18 47 54.5856   15.40 14.56   13.62 ~ 6 0
54 Cl* NGC 6838 ASC 813 * 19 53 43.3 +18 46 29           ~ 1 0
55 NGC 6838 1103 HB* 19 53 43.71312 +18 46 15.4704   15.2 14.33     ~ 4 0
56 NGC 6838 1071 RG* 19 53 43.7320780584 +18 47 33.685161000   13.95 12.76   11.51 ~ 31 0
57 Cl* NGC 6838 ASC 4448 * 19 53 43.8 +18 47 09           ~ 1 0
58 Cl* NGC 6838 ASC 4482 * 19 53 43.9 +18 47 35           ~ 1 0
59 Cl* NGC 6838 KC 343 * 19 53 44.0 +18 47 54   16.96 16.33     ~ 2 0
60 Cl* NGC 6838 KC 374 * 19 53 44.1 +18 47 34   17.5 16.27     ~ 2 0
61 NGC 6838 1070 * 19 53 44.3276051291 +18 47 18.474665417   15.59 14.48     ~ 4 0
62 [KGS2008] J195344.5+184647 RG* 19 53 44.4 +18 46 48   15.64 14.76   13.78 ~ 7 0
63 Cl* NGC 6838 ASC 1873 * 19 53 44.5 +18 47 05           ~ 1 0
64 Cl* NGC 6838 ASC 10218 * 19 53 44.6 +18 47 03     16.03     ~ 4 0
65 NGC 6838 1088 HB* 19 53 44.8073734036 +18 45 48.621475210   15.25 14.26     ~ 6 0
66 Cl* NGC 6838 ASC 387 * 19 53 45.0 +18 47 50           ~ 1 0
67 Cl* NGC 6838 KC 267 * 19 53 45.1 +18 46 30   16.13 15.69     ~ 2 0
68 Cl* NGC 6838 KC 234 * 19 53 45.2 +18 46 07   15.71 15.59     ~ 2 0
69 NGC 6838 1066 RG* 19 53 45.2532361224 +18 46 55.433986176   13.52 12.27   10.95 ~ 34 0
70 NGC 6838 1081 * 19 53 45.5110375872 +18 46 49.598051952   15.08 13.76     ~ 8 0
71 NGC 6838 1087 HB* 19 53 45.6130770672 +18 45 50.217499512   15.42 14.37     ~ 22 0
72 NGC 6838 1065 RG* 19 53 45.7373419920 +18 47 01.224384072   15.475 14.322     ~ 19 0
73 NGC 6838 1113 RG* 19 53 45.7626197880 +18 47 55.013762796   14.255 12.482     ~ 26 0
74 Cl* NGC 6838 ASC 1958 * 19 53 46.0 +18 46 35           ~ 1 0
75 Cl* NGC 6838 ASC 5412 * 19 53 46.0 +18 47 08           ~ 1 0
76 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1107 0
77 Cl* NGC 6838 ASC 439 * 19 53 46.8 +18 46 36           ~ 1 0
78 Cl* NGC 6838 ASC 10927 * 19 53 46.9 +18 46 53           ~ 1 0
79 Cl* NGC 6838 ASC 1144 * 19 53 46.9 +18 47 25           ~ 1 0
80 2MASS J19534721+1846537 AB* 19 53 47.211 +18 46 53.76   14.610 13.131     ~ 15 0
81 Cl* NGC 6838 ASC 51 * 19 53 47.3 +18 46 33   18.01 17.30     ~ 1 0
82 NGC 6838 1042 HB* 19 53 47.3695979832 +18 47 16.439609076   15.24 14.22     ~ 4 0
83 Cl* NGC 6838 ASC 5871 * 19 53 47.5 +18 47 45           ~ 1 0
84 2MASS J19534750+1846169 AB* 19 53 47.5108324968 +18 46 17.016728880   14.51 13.02     ~ 48 0
85 NGC 6838 1043 * 19 53 47.7212013624 +18 47 37.556071944   15.32 14.26     ~ 7 0
86 Cl* NGC 6838 ASC 11331 * 19 53 47.9 +18 46 41           ~ 1 0
87 Cl* NGC 6838 ASC 5964 * 19 53 47.9 +18 46 52           ~ 1 0
88 Cl* NGC 6838 ASC 6079 * 19 53 48.0 +18 46 24           ~ 1 0
89 NGC 6838 1045 RG* 19 53 48.2738208408 +18 48 02.321225604   14.080 12.346   10.657 ~ 52 0
90 Cl* NGC 6838 KC 252 * 19 53 48.4 +18 47 09   16.07 15.38     ~ 2 0
91 Cl* NGC 6838 ASC 1161 * 19 53 48.6 +18 48 18           ~ 1 0
92 NGC 6838 1055 * 19 53 48.708 +18 48 32.72   15.42 14.34     ~ 3 0
93 Cl* NGC 6838 ASC 488 * 19 53 48.8 +18 47 03   17.59 16.83     ~ 1 0
94 Cl* NGC 6838 ASC 1894 * 19 53 48.9 +18 48 14           ~ 1 0
95 Cl* NGC 6838 ASC 888 * 19 53 49.0 +18 47 09   18.76 17.39     ~ 1 0
96 Cl* NGC 6838 ASC 1796 * 19 53 49.3 +18 48 15   19.52 18.69     ~ 1 0
97 Cl* NGC 6838 ASC 6548 * 19 53 49.4 +18 48 29   20.9 19.85     ~ 1 0
98 Cl* NGC 6838 ASC 11907 * 19 53 49.6 +18 47 44           ~ 1 0
99 Cl* NGC 6838 ASC 2013 * 19 53 49.6 +18 48 19           ~ 1 0
100 Cl* NGC 6838 ASC 11860 * 19 53 49.8 +18 48 13           ~ 1 0
101 NGC 6838 1034 HB* 19 53 49.8634536552 +18 47 00.376855980   15.5 14.45     ~ 19 0
102 2MASS J19535011+1846355 RG* 19 53 50.114 +18 46 35.55   15.06 14.12   13.10 ~ 4 0
103 NGC 6838 1111 RG* 19 53 50.1888910056 +18 45 52.565276844   16.023 14.914     ~ 9 0
104 Cl* NGC 6838 ASC 6761 * 19 53 50.2 +18 46 50           ~ 1 0
105 Cl* NGC 6838 ASC 6786 * 19 53 50.4 +18 44 12           ~ 1 0
106 Cl* NGC 6838 ASC 523 * 19 53 50.628 +18 47 14.60           ~ 1 0
107 NGC 6838 1053 RG* 19 53 50.6409291720 +18 49 07.531926240   14.58 12.97   11.527 ~ 55 0
108 Cl* NGC 6838 KC 202 RG* 19 53 50.6743605138 +18 48 47.728092024 17.014 16.362 15.221 14.585 13.974 ~ 6 0
109 Cl* NGC 6838 ASC 6868 * 19 53 50.8 +18 48 23           ~ 1 0
110 Cl* NGC 6838 ASC 7014 * 19 53 51.0 +18 47 04           ~ 1 0
111 Cl* NGC 6838 KC 200 RG* 19 53 51.07152 +18 48 24.6132   16.83 15.53     ~ 3 0
112 Cl* NGC 6838 ASC 1181 * 19 53 51.1 +18 47 41   18.59 17.79     ~ 1 0
113 Cl* NGC 6838 ASC 12299 * 19 53 51.3 +18 47 06           ~ 1 0
114 Cl* NGC 6838 ASC 1815 * 19 53 51.4 +18 46 36           ~ 1 0
115 NGC 6838 1046 RG* 19 53 51.5034366408 +18 48 06.095443860   13.955 12.332 11.804   M0: 34 0
116 Cl* NGC 6838 ASC 921 * 19 53 51.6 +18 46 32   17.25 16.53     ~ 1 0
117 Cl* NGC 6838 ASC 1561 * 19 53 51.8 +18 48 18           ~ 1 0
118 Cl* NGC 6838 ASC 1818 * 19 53 51.9 +18 48 30           ~ 1 0
119 Cl* NGC 6838 KC 336 * 19 53 52.0 +18 47 50     15.97     ~ 2 0
120 Cl* NGC 6838 ASC 2153 * 19 53 52.2 +18 47 36           ~ 1 0
121 Cl* NGC 6838 KC 363 * 19 53 52.3 +18 46 35   17.79 16.36     ~ 2 0
122 Cl* NGC 6838 ASC 7299 * 19 53 52.3 +18 48 32           ~ 1 0
123 Cl* NGC 6838 ASC 1693 * 19 53 52.4 +18 48 31           ~ 1 0
124 Cl* NGC 6838 ASC 7453 * 19 53 52.7 +18 48 29           ~ 1 0
125 Cl* NGC 6838 ASC 7505 * 19 53 52.8 +18 48 01           ~ 1 0
126 Cl* NGC 6838 ASC 574 * 19 53 52.8 +18 48 27           ~ 1 0
127 Cl* NGC 6838 KC 196 RG* 19 53 52.8313575978 +18 47 37.686738738 17.315 16.749 15.651 15.028 14.438 ~ 6 0
128 Cl* NGC 6838 ASC 2154 * 19 53 53.0 +18 47 08           ~ 1 0
129 Cl* NGC 6838 ZDA 18 RG* 19 53 53.2569747960 +18 46 47.152843176   13.89 12.20     ~ 62 0
130 Cl* NGC 6838 ASC 7573 * 19 53 53.4 +18 47 38           ~ 1 0
131 Cl* NGC 6838 ASC 951 * 19 53 53.4 +18 48 23   18.85 18.08     ~ 1 0
132 Cl* NGC 6838 ASC 78 * 19 53 53.5 +18 48 19   18.87 18.08     ~ 1 0
133 Cl* NGC 6838 ASC 7677 * 19 53 53.8 +18 48 06   19 18.14     ~ 1 0
134 Cl* NGC 6838 ASC 1210 * 19 53 53.8 +18 48 20   19.33 18.50     ~ 1 0
135 Cl* NGC 6838 ASC 1214 * 19 53 53.9 +18 48 28   19.91 19.00     ~ 1 0
136 Cl* NGC 6838 ASC 2229 * 19 53 54.0 +18 47 13           ~ 1 0
137 Cl* NGC 6838 ASC 613 * 19 53 54.3 +18 47 21   18.46 17.57     ~ 1 0
138 Cl* NGC 6838 ASC 616 * 19 53 54.4 +18 46 48   18.39 17.50     ~ 1 0
139 Cl* NGC 6838 ASC 1219 * 19 53 54.4 +18 47 56   18.9 17.92     ~ 1 0
140 Cl* NGC 6838 ASC 619 * 19 53 54.5 +18 48 00   18.74 17.94     ~ 1 0
141 Cl* NGC 6838 ASC 8009 * 19 53 55.3 +18 48 10           ~ 1 0
142 NGC 6838 1028 RG* 19 53 55.3468283136 +18 47 24.740888460   15.997 14.893     ~ 8 0
143 Cl* NGC 6838 ASC 1409 * 19 53 55.4 +18 47 36     17.05     ~ 2 0
144 NGC 6838 1048 HB* 19 53 55.6091994504 +18 48 08.396233092   15.46 14.39     ~ 11 0
145 Cl* NGC 6838 KC 191 RG* 19 53 55.67304 +18 47 51.0144   15.18 14.26   13.24 ~ 6 0
146 Cl* NGC 6838 ASC 1716 * 19 53 55.8 +18 47 41           ~ 1 0
147 Cl* NGC 6838 ASC 8076 * 19 53 55.9 +18 47 39           ~ 1 0
148 Cl* NGC 6838 ASC 1235 * 19 53 56.0 +18 48 04   17.63 16.77     ~ 1 0
149 Cl* NGC 6838 ASC 654 * 19 53 56.2 +18 48 11   18.54 17.26     ~ 1 0
150 Cl* NGC 6838 KC 170 RG* 19 53 56.2076183396 +18 45 26.554507103 17.270 16.740 15.608 14.964 14.330 ~ 6 0

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2023.09.23-10:53:03

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