2016MNRAS.460.1846Y

Query : 2016MNRAS.460.1846Y

2016MNRAS.460.1846Y - Mon. Not. R. Astron. Soc., 460, 1846-1853 (2016/August-1)

Confirming the intrinsic abundance spread in the globular cluster NGC 6273 (M19) with calcium triplet spectroscopy.

YONG D., DA COSTA G.S. and NORRIS J.E.

Abstract (from CDS):

We present metallicities for red giant stars in the globular cluster NGC 6273 based on intermediate resolution GMOS-S spectra of the calcium triplet region. For the 42 radial velocity members with reliable calcium triplet line strength measurements, we obtain metallicities, [Fe/H], using calibrations established from standard globular clusters. We confirm the presence of an intrinsic abundance dispersion identified by Johnson et al. The total range in [Fe/H] is ∼1.0 dex and after taking into account the measurement errors, the intrinsic abundance dispersion is σ_int[Fe/H]=0.17 dex. Among the Galactic globular clusters, the abundance dispersion in NGC 6273 is only exceeded by ω Cen, which is regarded as the remnant of a disrupted dwarf galaxy, and M54, which is the nuclear star cluster of the Sagittarius dwarf galaxy. If these three globular clusters share the same formation mechanism, then NGC 6273 may also be the remnant nucleus of a disrupted dwarf galaxy.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: Population II - globular clusters: general - globular clusters: individual: NGC 6273 - globular clusters: individual: NGC 6273

Status at CDS : Large table(s) of objects being ingested in VizieR.

Simbad objects: 36

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Number of rows : 36
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 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
2 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
3 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
4 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
5 NGC 5286 GlC 13 46 26.81 -51 22 27.3           ~ 485 0
6 NGC 5824 GlC 15 03 58.612 -33 04 06.70   10.28 9.56     ~ 441 0
7 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
8 2MASS J17022878-2614320 Pe* 17 02 28.7836804320 -26 14 32.062389180           ~ 5 0
9 2MASS J17023158-2617259 * 17 02 31.5792519384 -26 17 25.942384644           ~ 3 0
10 2MASS J17023301-2615360 Pe* 17 02 33.0088090440 -26 15 36.021297384           ~ 5 0
11 2MASS J17023481-2617152 Pe* 17 02 34.8066715872 -26 17 15.175276332           ~ 5 0
12 2MASS J17023531-2616228 * 17 02 35.3095463208 -26 16 22.818197928           ~ 1 0
13 2MASS J17023595-2615342 Pe* 17 02 35.954 -26 15 34.20           ~ 4 0
14 2MASS J17023649-2615229 * 17 02 36.4829135136 -26 15 23.090725872           ~ 2 0
15 2MASS J17023685-2616217 * 17 02 36.859 -26 16 21.75           ~ 2 0
16 2MASS J17023716-2615370 * 17 02 37.169 -26 15 37.06           ~ 1 0
17 M 19 GlC 17 02 37.69 -26 16 04.6   8.45 5.57     ~ 406 1
18 2MASS J17023856-2617209 Pe* 17 02 38.5591081392 -26 17 20.893192944           ~ 6 0
19 2MASS J17023984-2617360 * 17 02 39.8374864776 -26 17 36.047763636           ~ 3 0
20 2MASS J17024016-2616096 * 17 02 40.163 -26 16 09.65           ~ 3 0
21 2MASS J17024132-2613517 * 17 02 41.3206989912 -26 13 51.667650732           ~ 3 0
22 2MASS J17024326-2617504 Pe* 17 02 43.267 -26 17 50.50           ~ 5 0
23 2MASS J17024453-2616377 Pe* 17 02 44.538 -26 16 37.76           ~ 5 0
24 2MASS J17024618-2615261 Pe* 17 02 46.1774333904 -26 15 26.099376084           ~ 5 0
25 2MASS J17024717-2615107 Pe* 17 02 47.1669567408 -26 15 10.794507516           ~ 6 0
26 NGC 6356 GlC 17 23 34.99 -17 48 46.9   10.01 7.42     ~ 372 1
27 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
28 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
29 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
30 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
31 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
32 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
33 M 75 GlC 20 06 04.841 -21 55 20.14     8.26     ~ 394 0
34 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
35 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1114 1
36 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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