2010A&A...523A..11M


Query : 2010A&A...523A..11M

2010A&A...523A..11M - Astronomy and Astrophysics, volume 523, A11-11 (2010/11-2)

Open clusters towards the Galactic Centre: chemistry and dynamics. A VLT spectroscopic study of NGC 6192, NGC 6404, NGC 6583.

MAGRINI L., RANDICH S., ZOCCALI M., JILKOVA L., CARRARO G., GALLI D., MAIORCA E. and BUSSO M.

Abstract (from CDS):

In the framework of the study of the Galactic metallicity gradient and its time evolution, we present new high-resolution spectroscopic observations obtained with FLAMES and the fiber link to UVES at VLT of three open clusters (OCs) located within ∼7kpc from the Galactic centre (GC): NGC 6192, NGC 6404, NGC 6583. We also present new orbit determination for all OCs with Galactocentric distances (RGC)≤8kpc and metallicity from high-resolution spectroscopy. We aim to investigate the slope of the inner disc metallicity gradient as traced by OCs and to discuss its implication for the chemical evolution of our Galaxy. We have derived memberships of a group of evolved stars for each clusters, obtaining a sample of 4, 4, and 2 member stars in NGC 6192, NGC 6404, and NGC 6583, respectively. Using standard LTE analysis we derived stellar parameters and abundance ratios for the iron-peak elements Fe, Ni, Cr, and for the α-elements Al, Mg, Si, Ti, Ca. We calculated the orbits of the OCs currently located within 8 kpc from the GC, and discuss their implication on the present-time radial location. The average metallicities of the three clusters are all oversolar: [Fe/H]=+0.12±0.04 (NGC 6192), +0.11±0.04 (NGC 6404), +0.37±0.03 (NGC 6583). They are in qualitative agreement with their Galactocentric distances, because they are all internal OCs, and expected to be more metal rich than the solar neighbourhood. The abundance ratios of the other elements over iron [X/Fe] are consistent with solar values. The clusters we have analysed confirm, together with other OC and Cepheid data, a steep gradient in the inner disc, a signature of an evolutionary rate that is different from the one in the outer disc.

Abstract Copyright:

Journal keyword(s): Galaxy: abundances - Galaxy: evolution - open clusters and associations: individual: NGC 6192 - open clusters and associations: individual: NGC 6404 - open clusters and associations: individual: NGC 6583

VizieR on-line data: <Available at CDS (J/A+A/523/A11): stars.dat tablea1.dat tablea2.dat tablea3.dat tablea4.dat>

Simbad objects: 47

goto Full paper

goto View the references in ADS

Number of rows : 47
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 1817 OpC 05 12 33.4 +16 41 46           ~ 174 0
2 NGC 1883 OpC 05 25 55.2 +46 29 35     12.0     ~ 46 0
3 M 37 OpC 05 52 17.8 +32 32 42   6.19 5.6     ~ 384 2
4 NGC 2158 OpC 06 07 26.9 +24 05 56           ~ 285 0
5 Cl Collinder 110 OpC 06 38 42.5 +02 04 08     10.5     ~ 67 1
6 Cl Berkeley 31 OpC 06 57 37.4 +08 17 06           ~ 125 0
7 Cl Haffner 2 OpC 07 03 05.5 -20 49 12           ~ 129 0
8 NGC 2420 OpC 07 38 24.5 +21 34 30   9.0 8.3     ~ 463 0
9 Cl Berkeley 39 OpC 07 46 48.5 -04 39 54           ~ 185 1
10 NGC 3532 OpC 11 05 40.1 -58 42 25           ~ 338 0
11 IC 2714 OpC 11 17 29.5 -62 43 08     8.2     ~ 94 0
12 NGC 3690 IG 11 28 31.0 +58 33 41   13.19 12.86     ~ 966 4
13 NGC 3960 OpC 11 50 34.6 -55 40 44   9.07 8.3     ~ 137 0
14 Cl Collinder 261 OpC 12 38 04.6 -68 22 37     10.7     ~ 188 0
15 NGC 5822 OpC 15 04 12.2 -54 21 58           ~ 205 0
16 NGC 5882 PN 15 16 49.9562553264 -45 38 58.616280132   11.9 10.9     ~ 274 0
17 NGC 6134 OpC 16 27 48.7 -49 09 40   7.89 7.2     ~ 147 0
18 Cl* NGC 6192 MMU 137 ** 16 40 11.4165638760 -43 24 00.783486792   12.981 11.223   9.465 G9III 15 0
19 Cl* NGC 6192 MMU 96 SB* 16 40 16.4599958160 -43 22 37.610042628   12.808 11.306   9.804 G2III 16 0
20 NGC 6192 OpC 16 40 18.5 -43 21 18           ~ 87 0
21 CD-43 10987 * 16 40 24.2111991864 -43 20 07.892426724   13.288 11.743   10.197 ~ 16 0
22 NGC 6192 101 * 16 40 35.6842578432 -43 27 22.301754552   12.02 11.36   9.65 K1III 5 0
23 CD-43 10991 * 16 40 40.8092588616 -43 22 59.428693452   12.93 11.40   9.92 ~ 15 0
24 NGC 6192 26 * 16 40 45.6276770424 -43 24 07.735093740   12.922 11.588   10.254 K1III 4 0
25 NGC 6253 OpC 16 59 06.7 -52 42 43     10.2     ~ 181 0
26 [TGB2011] J165912.9183-524136.015 RG* 16 59 12.9241216176 -52 41 35.903146848   14.645 13.501 12.852 12.193 ~ 16 0
27 Cl* NGC 6253 EIS 23498 MS? 16 59 21.3563214672 -52 42 43.384379940   14.767 13.912 13.454 12.934 ~ 11 0
28 NGC 6281 OpC 17 04 43.0 -37 56 53           ~ 132 0
29 IC 4651 OpC 17 24 50.9 -49 55 01           ~ 344 0
30 [CMC2005] NGC 6404 5 * 17 39 30.8662429776 -33 14 52.109191104     12.350   9.971 ~ 10 0
31 [CMC2005] NGC 6404 72 * 17 39 34.9114663920 -33 14 39.221614824     14.740   12.447 ~ 1 0
32 [CMC2005] NGC 6404 40 * 17 39 37.2347791536 -33 14 10.004270640     14.090   11.672 ~ 6 0
33 NGC 6404 OpC 17 39 39.8 -33 13 26     10.6     ~ 46 0
34 [CMC2005] NGC 6404 27 * 17 39 43.4544917688 -33 15 13.830656328     13.670   11.237 ~ 9 0
35 [CMC2005] NGC 6404 16 * 17 39 43.5374889720 -33 14 06.532631268     13.420   10.975 ~ 9 0
36 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13907 0
37 [CMC2005] NGC 6583 82 * 18 15 47.5362225715 -22 08 31.148703634     14.490   12.903 ~ 6 0
38 [CMC2005] NGC 6583 12 * 18 15 50.0413122096 -22 08 21.378202764     13.050   11.262 ~ 1 0
39 NGC 6583 OpC 18 15 50.9 -22 08 35     10.0     ~ 70 0
40 [CMC2005] NGC 6583 46 * 18 15 51.1272677520 -22 07 26.315629536     14.100   12.517 ~ 12 0
41 [CMC2005] NGC 6583 62 * 18 15 51.2334854736 -22 08 28.035455064     14.270   12.618 ~ 11 0
42 NGC 6633 OpC 18 27 22.8 +06 36 54           ~ 378 0
43 IC 4756 OpC 18 38 35.8 +05 26 06           ~ 234 0
44 NGC 6705 OpC 18 51 03.8 -06 16 19   6.32 5.8     ~ 406 0
45 NGC 6939 OpC 20 31 40.1 +60 39 11   8.85 7.8     ~ 154 0
46 NAME Galactic Bulge reg ~ ~           ~ 4173 0
47 NAME Galactic Bar reg ~ ~           ~ 1164 0

To bookmark this query, right click on this link: simbad:objects in 2010A&A...523A..11M and select 'bookmark this link' or equivalent in the popup menu


2023.10.03-08:45:51

© Université de Strasbourg/CNRS

    • Contact