2012ApJ...758..110C

Query : 2012ApJ...758..110C

2012ApJ...758..110C - Astrophys. J., 758, 110 (2012/October-3)

Analysis of the CN and CH molecular band strengths in stars of the open cluster NGC 6791.

CARRERA R.

Abstract (from CDS):

Low-resolution SDSS/SEGUE spectra have been used to study the behavior of the strengths of the CN and CH molecular bands in stars at different evolutionary stages of the open cluster NGC 6791. We find a significant spread in the strengths of the CN bands, more than twice that expected from the uncertainties, although the bimodalities observed in globular clusters are not clearly observed here. This behavior is observed not only among red clump objects but also in unevolved stars such as those in the main sequence and lower red giant branch. In contrast, not all of the stars studied show significant scatter in their CH strengths.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: disk - open clusters and associations: individual: NGC 6791 - stars: abundances

VizieR on-line data: <Available at CDS (J/ApJ/758/110): table1.dat>

Simbad objects: 109

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Number of rows : 109
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 188 OpC 00 47 14.8 +85 14 42           ~ 990 0
2 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
3 Cl* NGC 6791 SBG 1697 * 19 20 28.6224336288 +37 47 52.714184424     17.85   16.92 K1 7 0
4 Cl* NGC 6791 SBG 1877 * 19 20 29.9122166232 +37 48 41.503107024     17.40   16.43 ~ 6 0
5 Cl* NGC 6791 SBG 1918 * 19 20 30.1629592176 +37 45 51.772589640     17.84   16.94 ~ 7 0
6 [SLB2011b] 290.12584+37.81327 * 19 20 30.1967542296 +37 48 47.825681076     18.61   17.60 ~ 4 0
7 Cl* NGC 6791 SBG 1992 * 19 20 30.6528641424 +37 45 17.259973704     17.67   16.76 ~ 7 0
8 Cl* NGC 6791 SBG 2086 * 19 20 31.2611106312 +37 46 30.807310944     17.71   16.81 ~ 7 0
9 Cl* NGC 6791 SBG 2376 * 19 20 33.0122302032 +37 49 45.363487620     18.14   17.18 ~ 5 0
10 KOI-2682 EB* 19 20 34.0186052016 +37 44 28.918070304     19.36   18.17 ~ 14 0
11 Cl* NGC 6791 SBG 2638 * 19 20 34.3953809760 +37 48 04.094325972     17.47   16.48 ~ 6 0
12 Cl* NGC 6791 SBG 2678 * 19 20 34.6315552656 +37 47 11.246309088     18.03   17.12 ~ 7 0
13 NGC 6791 2746 BS* 19 20 34.9763743224 +37 45 52.349385492     15.03   14.43 F5 12 0
14 Cl* NGC 6791 SBG 2768 * 19 20 35.0637783912 +37 50 12.182981280     18.02   17.04 ~ 6 0
15 [SLB2011b] 290.14857+37.75947 * 19 20 35.6564283816 +37 45 34.242207804     18.84   17.82 G5 4 0
16 Cl* NGC 6791 SBG 3083 * 19 20 36.6973558920 +37 48 57.458117556     17.93   16.87 ~ 2 0
17 2MASS J19203768+3743327 RG* 19 20 37.6924200360 +37 43 32.773557000     16.40   15.20 K3 6 0
18 Cl* NGC 6791 SBG 3371 * 19 20 37.9008182304 +37 49 08.486377716     17.55   16.53 ~ 7 0
19 [SLB2011b] 290.16150+37.74609 * 19 20 38.7596316696 +37 44 46.013139636     19.15   18.08 ~ 3 0
20 Cl* NGC 6791 SBG 3606 * 19 20 38.8356844896 +37 43 20.574569964     18.03   17.13 K1 6 0
21 [SLB2011b] 290.16196+37.79569 * 19 20 38.87 +37 47 44.5     18.47   17.50 ~ 2 0
22 Cl* NGC 6791 SBG 3618 * 19 20 38.8701236760 +37 46 36.919400160     18.56   17.60 ~ 4 0
23 Cl* NGC 6791 SBG 3698 * 19 20 39.1657840872 +37 50 04.520209992     18.15   17.17 ~ 5 0
24 NGC 6791 3031 RG* 19 20 39.2278399920 +37 44 37.344739920   16.223 14.85   13.53 C: 21 0
25 NGC 6791 3017 RG* 19 20 39.3453763272 +37 48 04.868503452   16.084 14.612   13.079 M0e 50 0
26 2MASS J19204048+3747064 RG* 19 20 40.4840907792 +37 47 06.405619812     16.97   15.77 ~ 7 0
27 [SLB2011b] 290.16959+37.70742 * 19 20 40.7035965864 +37 42 26.722292868     19.08   18.03 ~ 4 0
28 Cl* NGC 6791 SBG 4426 * 19 20 41.8052483568 +37 42 21.682416240     17.58   16.68 F9 7 0
29 Cl* NGC 6791 SBG 4509 * 19 20 42.0843296830 +37 45 45.261223131     19.03   17.98 ~ 3 0
30 Cl* NGC 6791 SBG 4616 RG* 19 20 42.4175265480 +37 45 51.257027232     16.13   14.86 ~ 10 0
31 2MASS J19204338+3743171 RG* 19 20 43.3786159032 +37 43 17.172044436     16.40   15.19 ~ 8 0
32 Cl* NGC 6791 SBG 4960 * 19 20 43.5932483680 +37 47 44.798821262     18.57   17.61 ~ 3 0
33 [SLB2011b] 290.18250+37.84431 * 19 20 43.7895806016 +37 50 39.441923880     18.63   17.61 ~ 3 0
34 Cl* NGC 6791 SBG 5130 * 19 20 44.0990705136 +37 46 38.335750212     18.36   17.40 ~ 4 0
35 Cl* NGC 6791 SBG 5215 * 19 20 44.4053345376 +37 50 02.889018636     17.53   16.64 ~ 6 0
36 Cl* NGC 6791 SBG 5216 * 19 20 44.4172461360 +37 43 59.958013008     17.92   17.02 ~ 7 0
37 Cl* NGC 6791 SBG 5311 * 19 20 44.7236845200 +37 51 17.187017868     17.75   16.87 ~ 5 0
38 Cl* NGC 6791 SBG 5454 RG* 19 20 45.1752914208 +37 44 33.991699668   16.312 14.915   13.508 dC 43 0
39 Cl* NGC 6791 SBG 5503 RG* 19 20 45.3302254752 +37 47 17.943776700     14.60   13.27 dC 21 0
40 [SLB2011b] 290.19034+37.71489 * 19 20 45.6813359016 +37 42 53.623585044     19.29   18.24 ~ 3 0
41 Cl* NGC 6791 SBG 5708 * 19 20 45.9911690472 +37 45 00.694607400     18.32   17.37 ~ 4 0
42 Cl* NGC 6791 SBG 5796 RG* 19 20 46.2483052344 +37 49 10.567694640   16.566 15.223   13.867 ~ 42 0
43 Cl* NGC 6791 SBG 6068 * 19 20 47.0502810888 +37 45 40.097053656     18.23   17.30 ~ 3 0
44 NGC 6791 1238 * 19 20 48.7000778184 +37 46 01.371935784   20.30 19.22   18.13 ~ 5 0
45 [SLB2011b] 290.20554+37.84583 * 19 20 49.3177843536 +37 50 44.968249032     19.18   18.11 ~ 2 0
46 Cl* NGC 6791 SBG 6831 * 19 20 49.3515916217 +37 49 31.577938767     18.53   17.35 ~ 2 0
47 NGC 6791 3012 RG* 19 20 49.7230010696 +37 43 42.757322450   15.68 13.96   10.95 M5.0III 46 0
48 Cl* NGC 6791 SBG 7066 * 19 20 50.0397834576 +37 47 51.785430972     17.59   16.63 ~ 7 0
49 Cl* NGC 6791 KR V86 Ro* 19 20 50.1278359848 +37 48 31.501685592   20.50 19.478 18.846 18.30 ~ 5 0
50 Cl* NGC 6791 SBG 7207 * 19 20 50.4542910672 +37 50 03.447707388     17.38   16.46 ~ 6 0
51 [SLB2011b] 290.21133+37.69576 * 19 20 50.7169988952 +37 41 44.780925120     19.10   18.03 ~ 3 0
52 [SLB2011b] 290.21180+37.71344 * 19 20 50.8315388832 +37 42 48.431002896     19.63   18.47 ~ 3 0
53 Cl* NGC 6791 SBG 7364 * 19 20 50.880 +37 48 54.88     17.10   16.13 ~ 1 0
54 [SLB2011b] 290.21350+37.74117 * 19 20 51.2255355288 +37 44 28.145220324     18.35   17.40 ~ 3 0
55 NGC 6791 1120 RG* 19 20 51.3732096072 +37 46 30.548365752   16.26 14.21   12.93 ~ 16 0
56 [SLB2011b] 290.21646+37.79267 * 19 20 51.95 +37 47 33.6     18.83   17.83 ~ 3 0
57 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
58 NGC 6791 1349 RG* 19 20 52.8818474088 +37 45 33.157234044   15.874 14.55   13.24 K2/K3III 65 0
59 Cl* NGC 6791 SBG 8460 * 19 20 53.8637484480 +37 49 53.717992104     18.28   17.35 ~ 3 0
60 Cl* NGC 6791 SBG 8481 BS* 19 20 53.9111210880 +37 42 26.025986736     15.93   15.15 ~ 9 0
61 2MASS J19205537+3747497 RG* 19 20 55.3984584696 +37 47 49.503086340     17.49   16.30 ~ 7 0
62 [SLB2011b] 290.23092+37.84886 * 19 20 55.4033584296 +37 50 55.942547604     18.91   17.89 G5 3 0
63 [SLB2011b] 290.23312+37.77947 * 19 20 55.9402146206 +37 46 45.992848955     18.48   17.51 ~ 4 0
64 Cl* NGC 6791 SBG 9215 * 19 20 55.9625076192 +37 41 41.857875600     17.73   16.79 K1 7 0
65 Cl* NGC 6791 SBG 9270 * 19 20 56.1587159400 +37 43 31.794192768     18.39   17.46 ~ 4 0
66 Cl* NGC 6791 SBG 9326 * 19 20 56.3354304048 +37 48 52.424656452     18.55   17.46 ~ 3 0
67 [SLB2011b] 290.23571+37.74950 * 19 20 56.5681277376 +37 44 58.225070940     18.72   17.71 ~ 3 0
68 Cl* NGC 6791 SBG 9415 * 19 20 56.6228495208 +37 51 16.171030368     17.91   17.00 ~ 5 0
69 Cl* NGC 6791 SBG 9567 * 19 20 57.0433085088 +37 44 50.568531684     17.04   16.10 ~ 6 0
70 [SLB2011b] 290.23888+37.79792 * 19 20 57.33 +37 47 52.5     19.33   18.23 ~ 3 0
71 Cl* NGC 6791 SBG 9786 RG* 19 20 57.7101815688 +37 49 01.226018208   16.791 15.435   14.065 C: 34 0
72 Cl* NGC 6791 SBG 10050 RG* 19 20 58.5125865312 +37 50 08.011267548     16.51   15.29 C: 8 0
73 NGC 6791 3020 RG* 19 20 58.7475123264 +37 43 13.088916768   15.990 14.60 14.356 13.25 ~ 30 0
74 Cl* NGC 6791 SBG 10343 * 19 20 59.4176467584 +37 50 12.483591756     18.29   17.36 ~ 3 0
75 Cl* NGC 6791 SBG 10354 * 19 20 59.4400352976 +37 42 34.572946068     18.50   17.51 K1 2 0
76 [SLB2011b] 290.25304+37.76144 * 19 21 00.7131901293 +37 45 41.260815855     18.71   17.72 ~ 4 0
77 NGC 6791 2014 RG* 19 21 00.8624204232 +37 46 39.656777664   16.091 14.636 14.192 13.23 ~ 48 0
78 KOI-6269 HB* 19 21 00.8638400664 +37 45 33.886763316   15.99 14.55   13.17 ~ 47 0
79 Cl* NGC 6791 SBG 10898 RG* 19 21 01.1211981504 +37 42 13.462608672   15.949 14.459   12.890 M0e 51 0
80 Cl* NGC 6791 SBG 10927 * 19 21 01.1989191768 +37 44 11.518027944     18.04   17.08 ~ 6 0
81 [SLB2011b] 290.25525+37.78111 * 19 21 01.2581515848 +37 46 51.920654016     18.63   17.65 ~ 4 0
82 Cl* NGC 6791 SBG 11006 RG* 19 21 01.4516544408 +37 48 05.187396816   17.081 15.777   14.467 ~ 27 0
83 Cl* NGC 6791 SBG 11220 * 19 21 02.1833839752 +37 50 53.707627320     17.35   16.38 ~ 8 0
84 [SLB2011b] 290.26379+37.84733 * 19 21 03.3111619152 +37 50 50.505043272     19.42   18.25 ~ 2 0
85 Cl* NGC 6791 SBG 11804 * 19 21 04.1881210656 +37 43 56.884303056     17.81   16.92 ~ 6 0
86 [SLB2011b] 290.26775+37.82575 * 19 21 04.2579473016 +37 49 32.709410544     18.64   17.67 ~ 3 0
87 NGC 6791 3003 RG* 19 21 04.2668772550 +37 47 18.701137615   15.424 13.85   12.19 M0.0III 54 0
88 2MASS J19210452+3743161 RG* 19 21 04.5256195872 +37 43 16.336780140     17.50   16.39 K3 7 0
89 [SLB2011b] 290.27083+37.79364 * 19 21 04.9886953872 +37 47 37.208089896     18.78   17.77 ~ 4 0
90 Cl* NGC 6791 SBG 12213 * 19 21 05.8428385776 +37 49 19.366686804     17.41   16.49 K1 7 0
91 [SLB2011b] 290.27438+37.76821 * 19 21 05.8527154176 +37 46 05.614420692     18.57   17.62 K1 4 0
92 NGC 6791 3026 RG* 19 21 06.2968991160 +37 44 59.662738896   15.842 14.48   13.18 ~ 54 0
93 Cl* NGC 6791 SBG 12451 * 19 21 06.6960444144 +37 48 08.374925592     18.18   17.24 ~ 6 0
94 2MASS J19210837+3750083 RG* 19 21 08.3918517456 +37 50 08.501347536     17.47   16.37 ~ 6 0
95 Cl* NGC 6791 SBG 12956 * 19 21 08.6463079488 +37 43 03.003476088     18.52   17.58 G5 4 0
96 [SLB2011b] 290.28646+37.80753 * 19 21 08.7449241792 +37 48 27.167427936     19.05   18.00 ~ 2 0
97 2MASS J19210946+3747023 RG* 19 21 09.4629341175 +37 47 02.354337310     16.54   15.30 ~ 9 0
98 Cl* NGC 6791 SBG 13206 * 19 21 09.7596576432 +37 45 40.886559612     17.96   17.07 ~ 6 0
99 Cl* NGC 6791 SBG 13298 * 19 21 10.2174716424 +37 45 07.463089188     17.86   16.97 ~ 7 0
100 [SLB2011b] 290.29286+37.73219 * 19 21 10.2847763952 +37 43 55.873094412     18.25   17.31 K1 4 0
101 [SLB2011b] 290.29538+37.78913 * 19 21 10.8929949240 +37 47 20.916819528     19.06   18.01 ~ 4 0
102 Cl* NGC 6791 SBG 13796 * 19 21 12.6945596568 +37 48 26.717444856     17.66   16.73 ~ 6 0
103 2MASS J19211401+3745094 RG* 19 21 14.0108306256 +37 45 09.477712620     16.33   15.12 ~ 7 0
104 2MASS J19211453+3746328 RG* 19 21 14.5296961488 +37 46 32.803546764     17.32   16.18 ~ 7 0
105 Cl* NGC 6791 SBG 14258 * 19 21 15.3197044752 +37 47 31.865648460     18.07   17.15 ~ 6 0
106 [SLB2011b] 290.31488+37.78708 * 19 21 15.5713739184 +37 47 13.541758368     18.25   17.32 ~ 4 0
107 V* V525 Lyr EB* 19 21 15.7519465680 +37 46 09.507743796   19.471 18.535 17.955 17.45 ~ 12 0
108 NGC 7789 OpC 23 57 19.4 +56 43 28   7.68 6.7     ~ 575 0
109 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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