2012MNRAS.419.1350R

Query : 2012MNRAS.419.1350R

2012MNRAS.419.1350R - Mon. Not. R. Astron. Soc., 419, 1350-1361 (2012/January-2)

Comprehensive abundance analysis of red giants in the open clusters NGC 752, 1817, 2360 and 2506.

REDDY A.B.S., GIRIDHAR S. and LAMBERT D.L.

Abstract (from CDS):

We have analysed high-dispersion echelle spectra (R ≳ 50 000) of red giant members for four open clusters to derive abundances for many elements. The spread in temperatures and gravities being very small among the red giants nearly the same stellar lines were employed thereby reducing the random errors. The errors of average abundance for the cluster were generally in the range 0.02-0.07 dex. Our present sample covers Galactocentric distances of 8.3-10.5 kpc. The [Fe/H] values are -0.02±0.05 for NGC 752, -0.07 ±0.06 for NGC 2360, -0.11±0.05 for NGC 1817 and -0.19±0.06 for NGC 2506. Abundances relative to Fe for elements from Na to Eu are equal within measurement uncertainties to published abundances for thin-disc giants in the field. This supports the view that field stars come from disrupted open clusters. HST/WFPC2 imaging of the dwarf satellites And XI and And XIII: horizontal branch morphology and RR Lyraes

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): stars: abundances - Galaxy: abundances - open clusters and associations: individual: NGC 752 - open clusters and associations: individual: NGC 1817 - open clusters and associations: individual: NGC 2360 - open clusters and associations: individual: NGC 2506

VizieR on-line data: <Available at CDS (J/MNRAS/419/1350): table2.dat table6.dat>

Simbad objects: 23

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Number of rows : 23
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 BD+36 358 * 01 56 21.6380682480 +37 36 08.432374752   10.54 9.43     K0III 68 0
2 NGC 752 OpC 01 56 53.7 +37 45 06           ~ 712 0
3 BD+37 424 * 01 57 03.1090465536 +38 08 02.646530952   9.89 8.89     G8III 51 0
4 BD+37 441 Em* 01 58 29.8173119448 +37 51 37.575588024   10.23 9.29     G5 79 0
5 BD+37 448 * 01 58 52.9027843464 +37 48 57.229263828   10.07 9.04     K0III 93 0
6 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
7 NGC 1817 81 HB* 05 12 06.2661540048 +16 38 15.326508120   13.31 12.135     ~ 25 0
8 NGC 1817 8 HB* 05 12 19.3874697192 +16 40 48.680441652   13.20 12.052     ~ 29 0
9 2MASS J05122465+1635488 AB? 05 12 24.6514051896 +16 35 48.865173360   13.12 12.057     ~ 36 0
10 NGC 1817 OpC 05 12 33.9 +16 41 34           ~ 210 0
11 NGC 2360 OpC 07 17 45.8 -15 38 21           ~ 213 0
12 NGC 2360 12 * 07 18 09.5834394840 -15 31 39.796119048   13.63 12.43     ~ 8 0
13 NGC 2360 8 * 07 18 10.8490838328 -15 34 13.391287788 12.70 12.55 12.16     ~ 14 0
14 NGC 2360 5 * 07 18 14.1287411928 -15 37 30.512028180   14.09 13.79     ~ 12 0
15 NGC 2360 6 * 07 18 19.0822012416 -15 37 32.633728860   12.18 12.37     ~ 13 0
16 NGC 2506 3231 RB? 07 59 55.8704447448 -10 48 21.427837056   14.08 13.1     ~ 23 0
17 NGC 2506 4138 RB? 08 00 01.4929687104 -10 45 38.537927820   14.22 13.299     ~ 17 0
18 NGC 2506 OpC 08 00 02.3 -10 46 22   8.28 7.6     ~ 313 0
19 NGC 2506 2212 RB? 08 00 08.6771437008 -10 46 37.388330616   13.02 11.9   10.26 ~ 23 0
20 Cl Collinder 261 OpC 12 38 04.7 -68 22 40     10.7     ~ 216 0
21 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2417 1
22 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
23 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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