2018ApJS..237...18K

Query : 2018ApJS..237...18K

2018ApJS..237...18K - Astrophys. J., Suppl. Ser., 237, 18-18 (2018/July-0)

Catalog of chromium, cobalt, and nickel abundances in globular clusters and dwarf galaxies.

KIRBY E.N., XIE J.L., GUO R., KOVALEV M. and BERGEMANN M.

Abstract (from CDS):

We present measurements of the abundances of chromium, cobalt, and nickel in 4113 red giants, including 2277 stars in globular clusters (GCs), 1820 stars in the Milky Way's dwarf satellite galaxies, and 16 field stars. We measured the abundances from mostly archival Keck/DEIMOS medium-resolution spectroscopy with a resolving power of R ∼ 6500 and a wavelength range of approximately 6500-9000 Å. The abundances were determined by fitting spectral regions that contain absorption lines of the elements under consideration. We used estimates of temperature, surface gravity, and metallicity that we previously determined from the same spectra. We estimated systematic error by examining the dispersion of abundances within mono-metallic GCs. The median uncertainties for [Cr/Fe], [Co/Fe], and [Ni/Fe] are 0.20, 0.20, and 0.13, respectively. Finally, we validated our estimations of uncertainty through duplicate measurements, and we evaluated the accuracy and precision of our measurements through comparison to high-resolution spectroscopic measurements of the same stars.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: abundances - galaxies: dwarf - Local Group - nuclear reactions, nucleosynthesis, abundances - supernovae

VizieR on-line data: <Available at CDS (J/ApJS/237/18): syst.dat table3.dat table4.dat table5.dat>

Status at CDS : All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 42

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Number of rows : 42
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 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
4 Cl Pal 2 GlC 04 46 05.79720 +31 22 51.0170           ~ 202 0
5 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
6 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
7 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 410 0
8 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 434 0
9 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
10 NAME Sextans dSph LSB 10 13 02.9 -01 36 53   12 10.4     ~ 921 0
11 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 355 1
12 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
13 NAME Leo IV LSB 11 32 57.0 -00 32 00     15.1     ~ 419 1
14 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 482 1
15 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
16 NAME CVn II dSph G 12 57 09.6 +34 19 12     16.1     ~ 287 2
17 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
18 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
19 NAME CVn I dSph G 13 28 03.5 +33 33 21     13.1     ~ 352 1
20 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 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 NGC 5634 GlC 14 29 37.28 -05 58 35.1   10.69 10.05     ~ 333 0
23 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
24 NGC 5897 GlC 15 17 24.40 -21 00 36.4   10.16 8.52     ~ 424 0
25 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
26 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 399 0
27 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 379 1
28 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
29 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 397 0
30 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
31 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
32 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
33 M 56 GlC 19 16 35.57 +30 11 00.5           ~ 455 0
34 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
35 M 75 GlC 20 06 04.841 -21 55 20.14     8.26     ~ 394 0
36 NGC 7006 GlC 21 01 29.465 +16 11 16.49     10.46     ~ 562 0
37 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
38 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1114 1
39 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0
40 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 307 1
41 NGC 7492 GlC 23 08 26.68 -15 36 41.3     10.48     ~ 330 0
42 NAME Local Group GrG ~ ~           ~ 9325 0

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