2001A&A...375...30M


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST06:23:58

2001A&A...375...30M - Astronomy and Astrophysics, volume 375, 30-39 (2001/8-3)

Red giants in open clusters. IX. NGC 2324, 2818, 3960 and 6259.

MERMILLIOD J.-C., CLARIA J.J., ANDERSEN J., PIATTI A.E. and MAYOR M.

Abstract (from CDS):

We present accurate radial velocities and photoelectric UBV photometry for 73 and 57 red-giant candidates, respectively, in the intermediate-age open clusters NGC 2324, 2818, 3960 and 6259. These data confirm the membership of 47 stars, 12 of which (26%) are spectroscopic binaries; three preliminary orbits have been determined in NGC 3960. From Washington photometry of 8 red giant members, the metallicity of NGC 6259 is found to be [Fe/H]=0.06±0.08. At the age of these clusters, most of the red giants are observed in the core-helium (clump) burning phase, the general morphology of which is well reproduced by theoretical models with convective overshooting. However, a number of bona fide cluster giant members are found significantly to the red of the isochrones fitting the rest of the CMD of these and a few other clusters. Some of these stars are binaries, but others seem to be single. In either case, their red colours and/or low luminosities remain unexplained by current stellar evolution theory.

Abstract Copyright:

Journal keyword(s): cluster: open - individual: NGC 2324, NGC 2818, NGC 3960, NGC 6259 - binary: spectroscopic - star: evolution - star: red giant

VizieR on-line data: <Available at CDS (J/A+A/375/30): table1.dat>

Simbad objects: 85

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Number of rows : 85

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 752 OpC 01 57 41 +37 47.1           ~ 543 0
2 NGC 2324 103 * 07 03 57.9720440728 +01 04 17.357060428   14.31 13.213     ~ 3 0
3 2MASS J07040031+0058168 RG* 07 04 00.3155299380 +00 58 16.877592538   14.023 12.43 11.96 11.015 ~ 12 0
4 2MASS J07040114+0106040 RG* 07 04 01.1470738170 +01 06 04.008051545   14.347 13.351 12.97 12.216 ~ 15 0
5 2MASS J07040229+0102214 RG* 07 04 02.2992689735 +01 02 21.464176196   13.96 13.887     ~ 5 0
6 2MASS J07040376+0100148 RG* 07 04 03.7646226834 +01 00 14.808131110   14.444 13.425 12.97 12.267 ~ 12 0
7 NGC 2324 19 * 07 04 05.3158325132 +01 03 00.197129901   14.572 13.482     ~ 4 0
8 NGC 2324 121 * 07 04 05.878 +01 00 35.93   14.625 13.570     ~ 3 0
9 NGC 2324 OpC 07 04 07 +01 02.7   8.83 8.4     ~ 124 0
10 2MASS J07040821+0105184 SB* 07 04 08.2228257770 +01 05 18.442630613   14.312 13.291   12.144 ~ 11 0
11 2MASS J07041139+0059415 RG* 07 04 11.4028490029 +00 59 41.406482792   14.12 12.876     ~ 4 0
12 NGC 2324 67 * 07 04 13.54 +01 02 03.7     13.601     ~ 2 0
13 NGC 2324 134 * 07 04 14.7615985447 +01 01 06.702708879   14.374 13.332 12.90 12.201 ~ 9 0
14 NGC 2324 86 * 07 04 14.7704305100 +01 04 49.587648195   14.861 13.816     ~ 3 0
15 NGC 2324 136 * 07 04 16.1654408781 +01 01 13.461244905   13.731 12.508   11.242 ~ 12 0
16 NGC 2324 75 * 07 04 18.7923370289 +01 02 36.711761424   13.669 12.360     ~ 5 0
17 2MASS J07042202+0104341 RG* 07 04 22.0237098142 +01 04 34.119416460   14.368 13.361     ~ 6 0
18 NGC 2324 280 * 07 04 22.5070069998 +01 06 16.539926797   14.863 13.915   12.814 ~ 4 0
19 NGC 2324 276 * 07 04 26.6998788857 +01 00 14.732540780   13.7 12.93     ~ 2 0
20 NGC 2660 OpC 08 42 38 -47 12.0   9.05 8.8     ~ 127 0
21 NGC 2818 3034 * 09 15 52.3477085988 -36 30 44.011380320   14.258 13.125     ~ 3 0
22 NGC 2818 3035 * 09 15 54.2676443893 -36 30 50.241844047   14.381 13.346     ~ 5 0
23 NGC 2818 2038 * 09 15 56.4967787351 -36 40 51.616008935   14.623 13.568     ~ 3 0
24 NGC 2818 1053 * 09 15 59.4344993695 -36 34 56.557160602   14.212 13.325     ~ 4 0
25 NGC 2818 PN 09 16 01.4879747574 -36 37 37.531389997   12.5 12.50     ~ 264 0
26 NGC 2818 1044 * 09 16 02.9483967645 -36 34 34.500816105   14.754 13.745     ~ 5 0
27 NGC 2818 2035 * 09 16 03.3564144519 -36 40 18.834883022   14.157 13.056     ~ 3 0
28 Cl* NGC 2818 MMU 296 * 09 16 03.4772362989 -36 39 49.691718337   14.62 13.600     ~ 4 0
29 Cl* NGC 2818 MMU 297 * 09 16 03.8606455481 -36 39 50.840999169   14.44 13.400     ~ 4 0
30 NGC 2818 1063 * 09 16 04.5712566434 -36 35 49.278198697   14.853 13.850     ~ 5 0
31 NGC 2818 1126 * 09 16 07.5896947337 -36 40 09.861222639   14.711 13.542     ~ 4 0
32 NGC 2818 1069 * 09 16 08.8619903700 -36 36 48.260729116   14.702 13.704     ~ 5 0
33 Cl* NGC 2818 MMU 138 * 09 16 10.6594226628 -36 36 14.146481820   14.64 13.680     ~ 4 0
34 NGC 2818 1004 * 09 16 12.5845214789 -36 34 46.088694540   13.24 12.09     ~ 7 0
35 NGC 2818 1135 * 09 16 12.6158332069 -36 39 42.001474104   14.866 13.854     ~ 5 0
36 NGC 2818 1003 * 09 16 14.5779891434 -36 34 27.301525210   14.549 13.398     ~ 4 0
37 NGC 2818 1161 * 09 16 17.6095847925 -36 37 53.080381420   14.24 12.73     ~ 6 0
38 NGC 2818 1156 * 09 16 18.9273618459 -36 38 08.399244265   14.913 13.886     ~ 5 0
39 NGC 2818 1159 * 09 16 20.9775649828 -36 37 53.785004885   13.655 12.547     ~ 4 0
40 NGC 2818 2142 * 09 16 27.8020961442 -36 36 24.082045043   14.808 13.794     ~ 4 0
41 NGC 2818 2130 * 09 16 30.9166903817 -36 34 20.545712316   13.868 12.498     ~ 5 0
42 NGC 2818 2139 * 09 16 34.8423913630 -36 36 00.180502821   13.93 12.910     ~ 3 0
43 NGC 2818 2147 * 09 16 36.0302704259 -36 37 47.763746466   14.632 13.406     ~ 3 0
44 NGC 2818 3074 * 09 16 37.8278959654 -36 32 59.776353613   14.91 13.657     ~ 3 0
45 NGC 3960 18 * 11 50 21.9395372436 -55 42 23.300725384   14.27 12.65     ~ 3 0
46 2MASS J11502599-5539457 SB* 11 50 26.0008646907 -55 39 45.717955462   14.49 13.32     ~ 6 0
47 NGC 3960 102 * 11 50 26.1491277700 -55 43 51.795274655   13.2 11.500     ~ 3 0
48 NGC 3960 28 * 11 50 26.7644048691 -55 40 28.205875076   14.21 13.01     ~ 10 0
49 NGC 3960 24 * 11 50 28.1888767813 -55 41 36.908378606   14.53 13.28     ~ 6 0
50 NGC 3960 OpC 11 50 33 -55 40.4   9.07 8.3     ~ 115 0
51 NGC 3960 43 * 11 50 33.149 -55 42 36.13   14.90 13.57     ~ 3 0
52 2MASS J11503317-5538526 SB* 11 50 33.1789550455 -55 38 52.656989943   14.8 13.450     ~ 7 0
53 NGC 3960 41 * 11 50 36.0488220510 -55 42 05.645060123   14.45 13.15     ~ 10 0
54 NGC 3960 44 * 11 50 37.3437132047 -55 41 02.898301778   13.87 12.67     ~ 5 0
55 2MASS J11503762-5540151 SB* 11 50 37.6231067919 -55 40 15.153822241   14.30 13.11     ~ 11 0
56 NGC 3960 286 * 11 50 38.1087728167 -55 39 44.494515680   14.37 13.170     ~ 6 0
57 NGC 3960 47 * 11 50 41.3320814372 -55 40 53.676150063   14.82 13.65     ~ 6 0
58 NGC 3960 297 * 11 50 44.3968892049 -55 38 44.144807210   13.75 12.340     ~ 4 0
59 NGC 3960 55 * 11 50 50.4063141958 -55 40 11.305009788   14.86 13.55     ~ 4 0
60 NGC 6259 4027 * 17 00 24.2421709589 -44 41 47.326303441   14.329 12.591     ~ 4 0
61 Cl* NGC 6259 MMU 1335 * 17 00 27.0459833756 -44 43 09.258755271   14.181 12.444     ~ 4 0
62 NGC 6259 1013 * 17 00 28.2443508372 -44 38 53.668555023   14.23 12.47     ~ 4 0
63 Cl* NGC 6259 MMU 1220 * 17 00 29.5292876368 -44 41 15.675924939   14.386 12.576     ~ 3 0
64 NGC 6259 4024 * 17 00 29.9305045082 -44 41 42.913674524   13.966 12.218     ~ 4 0
65 NGC 6259 1035 * 17 00 32.624 -44 37 00.88   12.838 11.791     ~ 4 0
66 NGC 6259 4039 * 17 00 34.7764205984 -44 43 01.814095650   13.84 11.76     ~ 5 0
67 NGC 6259 1030 * 17 00 36.0637793139 -44 37 25.172861600   14.248 12.462     ~ 4 0
68 NGC 6259 4014 * 17 00 38.5632421257 -44 41 33.285556882   14.61 12.80     ~ 4 0
69 Cl* NGC 6259 APT 4101 * 17 00 38.59 -44 41 33.3     12.202     ~ 2 0
70 NGC 6259 OpC 17 00 45 -44 39.3   8.85 8.0     ~ 57 0
71 NGC 6259 2046 * 17 00 45.5155280303 -44 37 21.354921037   12.85 11.988     ~ 4 0
72 NGC 6259 3001 * 17 00 46.4519780208 -44 40 41.547011329   13.999 12.202     ~ 4 1
73 NGC 6259 2029 * 17 00 46.6791227806 -44 38 22.527957335   14.042 12.303     ~ 4 0
74 NGC 6259 3017 * 17 00 51.4680429860 -44 41 29.663231011   14.30 12.66     ~ 4 0
75 Cl* NGC 6259 MMU 2209 * 17 00 53.98 -44 43 39.4   14.669 12.903     ~ 3 0
76 NGC 6259 2014 * 17 00 55.6139603657 -44 40 05.234939458   14.356 12.938     ~ 4 0
77 Cl* NGC 6259 APT 2335 * 17 00 56.60 -44 44 46.8     13.397     ~ 2 0
78 Cl* NGC 6259 MMU 2221 * 17 00 56.75 -44 42 37.4   14.741 13.242     ~ 3 0
79 NGC 6259 3006 * 17 00 57.0896362122 -44 40 43.132696726   15.236 14.522     ~ 3 0
80 NGC 6259 3007 * 17 00 58.3240618456 -44 40 54.225392911   14.318 12.621     ~ 4 0
81 NGC 6259 2024 * 17 01 03.61 -44 38 32.1     13.938     ~ 2 0
82 Cl* NGC 6259 APT 3347 * 17 01 05.60 -44 38 42.4     13.945     ~ 2 0
83 Cl* NGC 6259 MMU 3351 * 17 01 08.7628364393 -44 39 34.523770877   14.381 12.909     ~ 3 0
84 Cl* NGC 6259 MMU 2301 * 17 01 09.6058792482 -44 41 22.005752499   12.58 11.12     ~ 5 0
85 NGC 7789 OpC 23 57 24 +56 42.5   7.68 6.7     ~ 456 0

    Equat.    Gal    SGal    Ecl

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2020.10.24-06:23:58

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