2013A&A...557A.138C


C.D.S. - SIMBAD4 rel 1.7 - 2019.09.19CEST23:53:00

2013A&A...557A.138C - Astronomy and Astrophysics, volume 557A, 138-138 (2013/9-1)

NGC 362: another globular cluster with a split red giant branch.

CARRETTA E., BRAGAGLIA A., GRATTON R.G., LUCATELLO S., D'ORAZI V., BELLAZZINI M., CATANZARO G., LEONE F., MOMANY Y. and SOLLIMA A.

Abstract (from CDS):

We obtained FLAMES GIRAFFE+UVES spectra for both first- and second-generation red giant branch (RGB) stars in the globular cluster (GC) NGC 362 and used them to derive abundances of 21 atomic species for a sample of 92 stars. The surveyed elements include proton-capture (O, Na, Mg, Al, Si), α-capture (Ca, Ti), Fe-peak (Sc, V, Mn, Co, Ni, Cu), and neutron-capture elements (Y, Zr, Ba, La, Ce, Nd, Eu, Dy). The analysis is fully consistent with that presented for twenty GCs in previous papers of this series. Stars in NGC 362 seem to be clustered into two discrete groups along the Na-O anti-correlation with a gap at [O/Na]∼0dex. Na-rich, second generation stars show a trend to be more centrally concentrated, although the level of confidence is not very high. When compared to the classical second-parameter twin NGC 288 with similar metallicity but different horizontal branch type and a much lower total mass, the proton-capture processing in stars of NGC 362 seems to be more extreme, confirming previous analysis. We discovered the presence of a secondary RGB sequence, which is redder than the bulk of the RGB. A preliminary estimate shows that this sequence comprises about 6% of RGB stars. Our spectroscopic data and literature photometry indicate that this sequence is populated almost exclusively by giants rich in Ba and is probably rich in all s-process elements, as found in other clusters. In this regard, NGC 362 joins previously studied GCs like NGC 1851, NGC 6656 (M 22), and NGC 7089 (M 2).

Abstract Copyright:

Journal keyword(s): stars: Population II - globular clusters: general - stars: abundances - stars: atmospheres - globular clusters: individual: NGC 362

VizieR on-line data: <Available at CDS (J/A+A/557/A138): table2.dat-table8.dat >

Simbad objects: 110

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Number of rows : 110

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3451 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9041 1
3 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 885 0
4 2MASS J01020500-7052159 RG* 01 02 04.9982912308 -70 52 15.941072604   16.213 15.388     ~ 3 0
5 2MASS J01021432-7059066 RG* 01 02 14.3094991444 -70 59 06.567575301   17.121 16.361     ~ 3 0
6 SSTISAGEMA J010214.72-705247.4 s?r 01 02 14.6895091172 -70 52 47.448544616 15.84 15.28 14.29   12.87 ~ 4 0
7 2MASS J01021897-7051286 RG* 01 02 18.9682758312 -70 51 28.698188928   15.237 14.250     ~ 4 0
8 2MASS J01022062-7049129 RG* 01 02 20.6165907804 -70 49 12.942191619   16.231 15.385     ~ 2 0
9 2MASS J01022605-7052056 RG* 01 02 26.0523482774 -70 52 05.605853797   16.043 15.199     ~ 4 0
10 2MASS J01022639-7053119 RG* 01 02 26.3807710148 -70 53 12.035162255   16.872 16.137     ~ 2 0
11 2MASS J01022786-7054122 RG* 01 02 27.8566928287 -70 54 12.188437954   16.526 15.736     ~ 4 0
12 2MASS J01023043-7055070 RG* 01 02 30.4323835648 -70 55 07.017327936   16.240 15.426     ~ 4 0
13 2MASS J01023174-7049324 RG* 01 02 31.7414467536 -70 49 32.522613342   15.713 14.782     ~ 3 0
14 2MASS J01023279-7044544 RG* 01 02 32.7949000435 -70 44 54.459193529   17.240 16.468     ~ 2 0
15 2MASS J01023473-7053228 RG* 01 02 34.7286317744 -70 53 22.857024714   15.864 14.984     ~ 3 0
16 2MASS J01023762-7047414 RG* 01 02 37.6251022960 -70 47 41.480224378   15.688 14.731     ~ 3 0
17 2MASS J01023763-7050370 RG* 01 02 37.6354746385 -70 50 37.069619048   14.335 12.950     ~ 16 0
18 2MASS J01023806-7051216 RG* 01 02 38.0593669507 -70 51 21.646385703   14.561 13.345     ~ 3 0
19 2MASS J01024024-7047474 RG* 01 02 40.2462392780 -70 47 47.446506128   14.818 13.674     ~ 2 0
20 2MASS J01024103-7056101 RG* 01 02 41.0292405660 -70 56 10.143934550   16.065 15.222     ~ 4 0
21 2MASS J01024320-7051207 RG* 01 02 43.2013237049 -70 51 20.795347638   15.950 15.093     ~ 3 0
22 2MASS J01024330-7048480 RG* 01 02 43.3143547758 -70 48 48.053048295   14.360 12.772     ~ 17 0
23 2MASS J01024455-7047396 RG* 01 02 44.5587781149 -70 47 39.596109376   14.893 13.780     ~ 3 0
24 2MASS J01024512-7052105 RG* 01 02 45.1295005650 -70 52 10.591373965   14.601 13.441     ~ 17 0
25 2MASS J01024876-7050032 RG* 01 02 48.7648456094 -70 50 03.299007253   16.238 15.441     ~ 2 0
26 2MASS J01025013-7051463 RG* 01 02 50.1273372471 -70 51 46.346742575   15.348 14.32     ~ 6 0
27 2MASS J01025280-7052048 RG* 01 02 52.8005102156 -70 52 04.835290385   16.272 15.437     ~ 3 0
28 2MASS J01025315-7050308 RG* 01 02 53.159 -70 50 30.85   14.331 12.68     ~ 11 0
29 2MASS J01025597-7050176 RG* 01 02 55.9640350211 -70 50 17.668328268   14.336 13.017     ~ 4 0
30 2MASS J01025707-7051018 RG* 01 02 57.0705966546 -70 51 01.889206387   16.190 15.362     ~ 4 0
31 2MASS J01025723-7046199 RG* 01 02 57.2367748320 -70 46 19.943190232   16.782 15.987     ~ 5 0
32 2MASS J01025823-7055511 RG* 01 02 58.23672 -70 55 51.1608   14.206 12.788     ~ 12 0
33 2MASS J01025855-7049097 RG* 01 02 58.5426461221 -70 49 09.768844150   15.918 15.033     ~ 3 0
34 2MASS J01025859-7051533 RG* 01 02 58.5940970698 -70 51 53.353776177   14.492 13.253     ~ 14 0
35 2MASS J01025903-7048579 RG* 01 02 59.033 -70 48 57.93   16.658 15.818     ~ 4 0
36 2MASS J01030007-7051306 RG* 01 03 00.07848 -70 51 30.6180   14.870 13.750     ~ 7 0
37 2MASS J01030113-7050195 RG* 01 03 01.1331935753 -70 50 19.572976754   15.487 14.576     ~ 2 0
38 2MASS J01030152-7052050 RG* 01 03 01.528 -70 52 05.09   15.432 14.518     ~ 2 0
39 2MASS J01030206-7050557 RG* 01 03 02.065 -70 50 55.79   16.959 16.149     ~ 1 0
40 2MASS J01030357-7056074 RG* 01 03 03.5749483941 -70 56 07.534345713   14.927 13.801     ~ 2 0
41 2MASS J01030391-7051321 RG* 01 03 03.9157546577 -70 51 32.184454099   14.315 12.992     ~ 2 0
42 Cl* NGC 362 HAR 2222 *iC 01 03 06.3212845842 -70 53 37.985018101   16.10       ~ 4 0
43 Cl* NGC 362 TUC 216 s?r 01 03 08.4896839609 -70 45 28.100581230   14.83 13.59     ~ 4 0
44 2MASS J01030894-7051498 RG* 01 03 08.947 -70 51 49.90   14.582 13.413     ~ 2 0
45 2MASS J01031095-7051544 RG* 01 03 10.9644930367 -70 51 54.473292697   14.647 13.493     ~ 2 0
46 2MASS J01031312-7053404 RG* 01 03 13.1240795264 -70 53 40.431476576   17.062 16.325     ~ 1 0
47 NGC 362 GlC 01 03 14.26 -70 50 55.6   7.97 6.58     ~ 887 0
48 2MASS J01031428-7051581 RG* 01 03 14.2837576050 -70 51 58.253242041   15.369 14.352     ~ 2 0
49 2MASS J01031666-7049154 RG* 01 03 16.663 -70 49 15.49   15.370 14.354     ~ 5 0
50 2MASS J01031840-7051505 RG* 01 03 18.3974022569 -70 51 50.606228979   15.414 14.455     ~ 4 0
51 2MASS J01031868-7053531 RG* 01 03 18.6737421072 -70 53 53.184770069   14.973 13.903     ~ 13 0
52 2MASS J01032002-7049553 RG* 01 03 20.0310701443 -70 49 55.412503365   15.227 14.139     ~ 3 0
53 2MASS J01032058-7049369 RG* 01 03 20.5735205583 -70 49 36.993213920   16.094 15.170     ~ 3 0
54 2MASS J01032173-7048403 RG* 01 03 21.7274055288 -70 48 40.419703409   14.290 12.716     ~ 22 0
55 2MASS J01032304-7045467 RG* 01 03 23.0391119635 -70 45 46.865024238   16.929 16.128     ~ 4 0
56 2MASS J01032315-7049548 RG* 01 03 23.1510040784 -70 49 54.898489355   15.446 14.548     ~ 2 0
57 2MASS J01032367-7052015 RG* 01 03 23.6770311953 -70 52 01.661917321   14.488 13.255     ~ 2 0
58 2MASS J01032387-7048525 RG* 01 03 23.8615998507 -70 48 52.612806707   16.587 15.758     ~ 3 0
59 2MASS J01032407-7047506 RG* 01 03 24.0672544068 -70 47 50.700791171   14.249 12.779     ~ 5 0
60 2MASS J01032483-7051517 RG* 01 03 24.8357446356 -70 51 51.812452029   14.820 13.717     ~ 2 0
61 2MASS J01032522-7049591 RG* 01 03 25.2271023821 -70 49 59.187544716   14.107 12.720     ~ 2 0
62 2MASS J01032848-7051296 RG* 01 03 28.4894251964 -70 51 29.652876423   14.540 13.354     ~ 2 0
63 2MASS J01032882-7049527 RG* 01 03 28.8204241678 -70 49 52.837197959   14.844 13.52     ~ 5 0
64 2MASS J01033064-7050104 RG* 01 03 30.6400291914 -70 50 10.565980207   14.453 13.204     ~ 8 0
65 2MASS J01033100-7052066 RG* 01 03 30.9950618570 -70 52 06.654121793   15.222 14.222     ~ 4 0
66 2MASS J01033302-7051035 RG* 01 03 33.0138385327 -70 51 03.654178714   15.166 14.055     ~ 3 0
67 2MASS J01033487-7050180 RG* 01 03 34.8672620327 -70 50 18.126148131   14.953 13.852     ~ 6 0
68 2MASS J01033493-7048078 RG* 01 03 34.9197570791 -70 48 07.970728074   14.261 12.804     ~ 17 0
69 2MASS J01033557-7051288 RG* 01 03 35.5570312005 -70 51 28.931172630   14.991 13.962     ~ 2 0
70 2MASS J01033568-7050560 RG* 01 03 35.6736240204 -70 50 56.203625193   14.816 13.715     ~ 15 0
71 2MASS J01033571-7050521 LP* 01 03 35.7116990970 -70 50 52.239033135   13.994 12.58   11.00 ~ 4 0
72 2MASS J01033608-7049067 RG* 01 03 36.0678516398 -70 49 06.857413531   16.073 15.182     ~ 3 0
73 2MASS J01033725-7050058 RG* 01 03 37.2477046528 -70 50 05.916559209   14.694 13.541     ~ 4 0
74 2MASS J01033841-7052047 RG* 01 03 38.4064664438 -70 52 04.825418844   14.202 12.769     ~ 15 0
75 2MASS J01033916-7056231 RG* 01 03 39.1455483371 -70 56 23.230895026   17.122 16.345     ~ 3 0
76 2MASS J01034023-7049420 RG* 01 03 40.2422163058 -70 49 42.124577516   16.052 15.135     ~ 4 0
77 2MASS J01034112-7049518 RG* 01 03 41.123 -70 49 51.85   16.241 15.356     ~ 2 0
78 Cl* NGC 362 HAR 1348 *iC 01 03 42.0965461544 -70 51 25.425183240           ~ 3 0
79 2MASS J01034306-7054521 RG* 01 03 43.0442310282 -70 54 52.210609562   16.230 15.398     ~ 5 0
80 2MASS J01034760-7055033 RG* 01 03 47.5899629493 -70 55 03.418985341   16.713 15.906     ~ 6 0
81 2MASS J01035125-7050278 RG* 01 03 51.2462833721 -70 50 27.989152975   16.243 15.418     ~ 3 0
82 2MASS J01035172-7049082 RG* 01 03 51.7075096580 -70 49 08.378426781   16.200 15.310     ~ 3 0
83 2MASS J01035451-7050227 RG* 01 03 54.4992851303 -70 50 22.923490379   16.261 15.436     ~ 6 0
84 2MASS J01035491-7052292 RG* 01 03 54.9097288299 -70 52 29.339628225   16.157 15.314     ~ 3 0
85 2MASS J01035605-7042262 RG* 01 03 56.0540473526 -70 42 26.321785519   16.331 15.425     ~ 3 0
86 2MASS J01040240-7049108 RG* 01 04 02.4058119383 -70 49 10.916309481   14.821 13.646     ~ 4 0
87 2MASS J01040598-7048483 RG* 01 04 05.9852134615 -70 48 48.423015554   16.151 15.260     ~ 4 0
88 2MASS J01040601-7052328 RG* 01 04 05.9987019327 -70 52 32.835475599   16.214 15.382     ~ 5 0
89 2MASS J01040855-7048576 RG* 01 04 08.5391371769 -70 48 57.683643281   16.446 15.541     ~ 2 0
90 2MASS J01040988-7049420 RG* 01 04 09.8837186688 -70 49 42.134257456   15.801 14.874     ~ 5 0
91 2MASS J01041148-7043397 RG* 01 04 11.4836018773 -70 43 39.781395401   16.330 15.461     ~ 4 0
92 2MASS J01041254-7047594 RG* 01 04 12.5385690662 -70 47 59.441946100   16.346 15.464     ~ 4 0
93 2MASS J01041856-7052362 RG* 01 04 18.5549251050 -70 52 36.203041550   16.274 15.430     ~ 4 0
94 2MASS J01041867-7049395 RG* 01 04 18.6629811391 -70 49 39.574995009   16.749 15.905     ~ 3 0
95 2MASS J01042166-7047554 RG* 01 04 21.6491526048 -70 47 55.499686871   16.436 15.580     ~ 3 0
96 2MASS J01042200-7054126 RG* 01 04 21.9935711261 -70 54 12.667718067   16.605 15.808     ~ 4 0
97 2MASS J01042945-7048428 RG* 01 04 29.4374265980 -70 48 42.853423107   16.992 16.200     ~ 3 0
98 2MASS J01052587-7050585 RG* 01 05 25.8845545960 -70 50 58.553481759   16.823 15.998     ~ 1 0
99 NGC 1851 GlC 05 14 06.76 -40 02 47.6   8.80 7.23     ~ 1202 0
100 IRAS 09110-6439 GlC 09 12 03.10 -64 51 48.6   7.77 5.69     ~ 1192 0
101 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 2897 0
102 NGC 5286 GlC 13 46 26.81 -51 22 27.3   9.18 8.31     ~ 339 0
103 NGC 6388 GlC 17 36 17.461 -44 44 08.34   7.40       ~ 768 1
104 NGC 6441 GlC 17 50 13.06 -37 03 05.2   9.26 8.00     ~ 737 0
105 M 22 GlC 18 36 23.94 -23 54 17.1   7.16 6.17     ~ 1170 0
106 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 849 0
107 NGC 6752 GlC 19 10 52.11 -59 59 04.4   6.96 6.28     ~ 1757 0
108 V* RR Lyr RR* 19 25 27.9123232234 +42 47 03.690634101   7.36   7.6   A8-F7 872 0
109 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 850 1
110 NAME Local Group GrG ~ ~           ~ 6624 0

    Equat.    Gal    SGal    Ecl

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2019.09.19-23:53:00

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