2016ApJ...832...99L

Query : 2016ApJ...832...99L

2016ApJ...832...99L - Astrophys. J., 832, 99-99 (2016/December-1)

Reversed trend of radial distribution of subpopulations in the globular clusters NGC 362 and NGC 6723.

LIM D., LEE Y.-W., PASQUATO M., HAN S.-I. and ROH D.-G.

Abstract (from CDS):

Most globular clusters (GCs) are now known to host multiple stellar populations with different abundances of light elements. Here we use narrow-band photometry and low-resolution spectroscopy for NGC 362 and NGC 6723 to investigate their chemical properties and radial distributions of subpopulations. We confirm that NGC 362 and NGC 6723 are among the GCs with multiple populations showing bimodal CN distribution and CN-CH anticorrelation without a significant spread in calcium abundance. These two GCs show more centrally concentrated CN-weak, earlier generation stars compared to the CN-strong, later generation stars. These trends are reversed with respect to those found in previous studies for many other GCs. Our findings, therefore, seem contradictory to the current scenario for the formation of multiple stellar populations, but mass segregation acting on the two subpopulations might be a possible solution to explain this reversed radial trend.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): globular clusters: general - globular clusters: individual: (NGC 362, NGC 6723) - stars: abundances - stars: evolution - stars: evolution

VizieR on-line data: <Available at CDS (J/ApJ/832/99): table2.dat>

Nomenclature: Table 2: [LLP2016] NNNNN-NNNN N=35+31 among (Nos N362-1003 to N362-4162, N6723-1004 to N6723-4162).

Simbad objects: 77

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Number of rows : 77
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 Cl* NGC 362 ALC 49 RG* 01 02 31.7416239624 -70 49 32.521596312   15.713 14.782     ~ 8 0
3 Cl* NGC 362 TUC 63 * 01 02 32.5276923408 -70 50 17.992235364   16.970 16.241     ~ 7 0
4 Cl* NGC 362 ALC 103 RG* 01 02 34.7286400752 -70 53 22.856352684   15.864 14.984     ~ 7 0
5 Cl* NGC 362 KHG 8 * 01 02 34.9661796696 -70 52 23.562907464   18.28 17.54     ~ 2 0
6 Cl* NGC 362 ALC 104 * 01 02 38.9854464096 -70 53 23.157327876   16.65       ~ 7 0
7 Cl* NGC 362 TUC 85 RG* 01 02 41.0294542752 -70 56 10.142948292   16.065 15.222     ~ 14 0
8 Cl* NGC 362 HAR 2209 * 01 02 42.4174011072 -70 51 28.338832116   16.665 15.901     ~ 6 0
9 [LLP2016] N362-4072 * 01 02 45.7210979136 -70 48 13.934886408           ~ 1 0
10 Cl* NGC 362 HAR 1211 RG* 01 02 50.1275573256 -70 51 46.346839452   15.348 14.32     ~ 16 0
11 2MASS J01025280-7052048 RG* 01 02 52.8009750288 -70 52 04.834921224   16.272 15.437     ~ 10 0
12 Cl* NGC 362 TUC 190 Pe* 01 03 03.6731849520 -70 56 21.385326768   16.577 15.726     ~ 9 0
13 Cl* NGC 362 ALC 109 RG* 01 03 10.0430287680 -70 54 33.835316040   16.262 15.412     ~ 16 0
14 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
15 Cl* NGC 362 HAR 1446 RG* 01 03 16.6528788528 -70 49 15.510818136   15.370 14.354     ~ 14 0
16 NGC 362 2049 RG* 01 03 18.6738605688 -70 53 53.184396480   14.973 13.903     ~ 23 0
17 Cl* NGC 362 ALC 132 RG* 01 03 23.1261570168 -70 55 36.525085644   16.288 15.429     ~ 15 0
18 Cl* NGC 362 HAR 2309 * 01 03 29.0694954504 -70 53 33.465789636   15.90 14.83     ~ 12 0
19 NGC 362 2041 * 01 03 30.5525204088 -70 53 53.831342652   17.032 16.301     ~ 9 0
20 Cl* NGC 362 ALC 128 * 01 03 31.0346531472 -70 54 17.512542360   16.259 15.434     ~ 11 0
21 2MASS J01033862-7049449 * 01 03 38.625 -70 49 44.90   17.047 16.222     ~ 6 0
22 2MASS J01034023-7049420 RG* 01 03 40.2422307168 -70 49 42.124598508   16.052 15.135     ~ 5 0
23 Cl* NGC 362 ALC 135 RG* 01 03 43.0441241904 -70 54 52.210317780   16.230 15.398     ~ 16 0
24 2MASS J01034760-7055033 RG* 01 03 47.5901322384 -70 55 03.419470956   16.713 15.906     ~ 14 0
25 Cl* NGC 362 HAR 2406 * 01 03 47.8983743304 -70 50 02.494883940   16.286 15.463     ~ 11 0
26 Cl* NGC 362 ALC 160 RG* 01 03 52.0647859080 -70 52 54.800452740   15.89       ~ 13 0
27 Cl* NGC 362 HAR 2404 RG* 01 03 54.4994866608 -70 50 22.922629692   16.261 15.436     ~ 17 0
28 Cl* NGC 362 TUC 422 * 01 03 56.8175953488 -70 50 43.859528088   18.93       ~ 4 0
29 Cl* NGC 362 ALC 199 RG* 01 04 02.4058789320 -70 49 10.916148000   14.821 13.646     ~ 17 0
30 [LLP2016] N362-4138 * 01 04 02.6478205536 -70 51 10.857068424           ~ 1 0
31 Cl* NGC 362 TUC 432 * 01 04 05.98 -70 54 28.7   18.80       ~ 2 0
32 Cl* NGC 362 ALC 163 RG* 01 04 05.9986610352 -70 52 32.836324836   16.214 15.382     ~ 16 0
33 [LLP2016] N362-4109 * 01 04 09.3291467952 -70 54 02.536801560           ~ 1 0
34 Cl* NGC 362 ALC 198 RG* 01 04 09.8836799208 -70 49 42.133856124   15.801 14.874     ~ 14 0
35 2MASS J01041254-7047594 RG* 01 04 12.5386079808 -70 47 59.441777916   16.346 15.464     ~ 12 0
36 Cl* NGC 362 TUC 448 * 01 04 16.6576992672 -70 48 30.227855652 17.55 17.44 16.71   15.85 ~ 3 0
37 2MASS J01041856-7052362 RG* 01 04 18.5549893656 -70 52 36.203272608   16.274 15.430     ~ 12 0
38 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
39 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
40 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
41 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
42 NGC 6362 GlC 17 31 54.99 -67 02 54.0           ~ 637 0
43 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
44 [LLP2016] N6723-3001 * 18 59 15.1861494912 -36 34 45.048876240           ~ 1 0
45 [LLP2016] N6723-2001 * 18 59 16.5833823456 -36 42 40.337580024           ~ 1 0
46 [LLP2016] N6723-3003 * 18 59 19.0672928256 -36 39 54.464200776           ~ 1 0
47 [LLP2016] N6723-2002 * 18 59 19.6704312888 -36 36 51.236949960           ~ 1 0
48 2MASS J18592624-3637204 * 18 59 26.2510483776 -36 37 20.429966388   15.479 14.369     ~ 4 0
49 [LLP2016] N6723-1007 * 18 59 27.2240963064 -36 40 39.522127512           ~ 1 0
50 [LLP2016] N6723-4045 * 18 59 28.4431016904 -36 36 13.668364116           ~ 1 0
51 [LLP2016] N6723-2017 * 18 59 29.1505194576 -36 35 18.858168204           ~ 1 0
52 [LLP2016] N6723-2025 * 18 59 31.82 -36 38 53.1           ~ 1 0
53 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 543 0
54 [LLP2016] N6723-3046 * 18 59 33.3137520888 -36 35 54.487366800           ~ 1 0
55 [LLP2016] N6723-4077 * 18 59 34.4781190176 -36 36 05.962454604           ~ 1 0
56 [LLP2016] N6723-2037 * 18 59 36.7876906152 -36 35 17.357991792           ~ 1 0
57 [LLP2016] N6723-3063 * 18 59 37.6120193112 -36 34 58.254620700           ~ 1 0
58 [LLP2016] N6723-3073 * 18 59 38.9145271680 -36 35 22.520093712           ~ 1 0
59 2MASS J18593930-3640179 * 18 59 39.3050954544 -36 40 17.927020020   15.302 14.091     ~ 4 0
60 [LLP2016] N6723-4121 * 18 59 40.34 -36 38 55.9           ~ 1 0
61 [LLP2016] N6723-2044 * 18 59 40.4281768128 -36 34 31.641222396           ~ 1 0
62 [LLP2016] N6723-4124 * 18 59 41.99 -36 38 40.1           ~ 1 0
63 [LLP2016] N6723-4128 * 18 59 43.0610543328 -36 36 43.427467944           ~ 1 0
64 [LLP2016] N6723-1029 * 18 59 43.1767496976 -36 39 12.803108832           ~ 1 0
65 [LLP2016] N6723-4131 * 18 59 44.4693511920 -36 38 30.365281140           ~ 1 0
66 [LLP2016] N6723-2048 * 18 59 44.6734796328 -36 41 05.191552356           ~ 1 0
67 [LLP2016] N6723-4136 * 18 59 46.7375670936 -36 43 26.005743804           ~ 1 0
68 [LLP2016] N6723-2050 * 18 59 47.1307538400 -36 36 17.417525436           ~ 1 0
69 [LLP2016] N6723-3091 * 18 59 48.5014221120 -36 37 44.677453116           ~ 1 0
70 [LLP2016] N6723-2051 * 18 59 50.7233533152 -36 38 08.238849108           ~ 1 0
71 [LLP2016] N6723-2052 * 18 59 51.4005063048 -36 34 54.479034120           ~ 1 0
72 [LLP2016] N6723-4148 * 18 59 52.2969000864 -36 42 00.289689408           ~ 1 0
73 [LLP2016] N6723-4153 * 18 59 54.0705692328 -36 41 22.325955720           ~ 1 0
74 [LLP2016] N6723-2054 * 19 00 04.4862756144 -36 40 23.177919576           ~ 1 0
75 [LLP2016] N6723-4162 * 19 00 09.85 -36 41 06.0           ~ 1 0
76 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
77 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0

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