2017A&A...604A.128D


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.12CET23:44:41

2017A&A...604A.128D - Astronomy and Astrophysics, volume 604A, 128-128 (2017/8-1)

The Gaia-ESO Survey: Galactic evolution of sulphur and zinc.

DUFFAU S., CAFFAU E., SBORDONE L., BONIFACIO P., ANDRIEVSKY S., KOROTIN S., BABUSIAUX C., SALVADORI S., MONACO L., FRANCOIS P., SKULADOTTIR A., BRAGAGLIA A., DONATI P., SPINA L., GALLAGHER A.J., LUDWIG H.-G., CHRISTLIEB N., HANSEN C.J., MOTT A., STEFFEN M., ZAGGIA S., BLANCO-CUARESMA S., CALURA F., FRIEL E., JIMENEZ-ESTEBAN F.M., KOCH A., MAGRINI L., PANCINO E., TANG B., TAUTVAISIENE G., VALLENARI A., HAWKINS K., GILMORE G., RANDICH S., FELTZING S., BENSBY T., FLACCOMIO E., SMILJANIC R., BAYO A., CARRARO G., CASEY A.R., COSTADO M.T., DAMIANI F., FRANCIOSINI E., HOURIHANE A., JOFRE P., LARDO C., LEWIS J., MORBIDELLI L., SOUSA S.G. and WORLEY C.C.

Abstract (from CDS):

Context. Due to their volatile nature, when sulphur and zinc are observed in external galaxies, their determined abundances represent the gas-phase abundances in the interstellar medium. This implies that they can be used as tracers of the chemical enrichment of matter in the Universe at high redshift. Comparable observations in stars are more difficult and, until recently, plagued by small number statistics.
Aims. We wish to exploit the Gaia-ESO Survey (GES) data to study the behaviour of sulphur and zinc abundances of a large number of Galactic stars, in a homogeneous way.
Methods. By using the UVES spectra of the GES sample, we are able to assemble a sample of 1301 Galactic stars, including stars in open and globular clusters in which both sulphur and zinc were measured.
Results. We confirm the results from the literature that sulphur behaves as an α-element. We find a large scatter in [Zn/Fe] ratios among giant stars around solar metallicity. The lower ratios are observed in giant stars at Galactocentric distances less than 7.5kpc. No such effect is observed among dwarf stars, since they do not extend to that radius.
Conclusions. Given the sample selection, giants and dwarfs are observed at different Galactic locations, and it is plausible, and compatible with simple calculations, that Zn-poor giants trace a younger population more polluted by SN Ia yields. It is necessary to extend observations in order to observe both giants and dwarfs at the same Galactic location. Further theoretical work on the evolution of zinc is also necessary.

Abstract Copyright: © ESO, 2017

Journal keyword(s): Galaxy: abundances - Galaxy: evolution - Galaxy: disk - stars: abundances - open clusters and associations: general - globular clusters: general - globular clusters: general

VizieR on-line data: <Available at CDS (J/A+A/604/A128): gessdu.dat>

Status in Simbad:  could be processed

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 - 2020
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3471 0
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1063 4
3 NGC 362 GlC 01 03 14.26 -70 50 55.6   7.97 6.58     ~ 896 0
4 BD+44 493 Pe* 02 26 49.7388403813 +44 57 46.526253277   9.63 9.11     CEMP-no 81 0
5 NGC 1851 GlC 05 14 06.76 -40 02 47.6   8.80 7.23     ~ 1208 0
6 NGC 2243 OpC 06 29 34 -31 17.0   10.12 9.4     ~ 210 0
7 C 0634+094 OpC 06 36 29 +09 28.2     10.9     ~ 71 0
8 Cl Berkeley 25 OpC 06 41 16 -16 29.2           ~ 43 0
9 NGC 2451A OpC 07 43 12 -38 24.0           ~ 80 0
10 NGC 2477 OpC 07 52 10 -38 31.8   6.64 5.8     ~ 253 0
11 NGC 2516 OpC 07 58 04 -60 45.2           ~ 575 0
12 NGC 2547 OpC 08 09 52.360 -49 10 35.01           ~ 303 0
13 IC 2391 OpC 08 40 32 -53 02.0           ~ 703 0
14 NGC 2682 OpC 08 51 18 +11 48.0           ~ 1987 0
15 IRAS 09110-6439 GlC 09 12 03.10 -64 51 48.6   7.77 5.69     ~ 1203 0
16 Cl Trumpler 20 OpC 12 39 45 -60 38.1     10.1     ~ 68 0
17 NGC 4815 OpC 12 58 01 -64 57.6   9.61 8.6     ~ 66 0
18 HE 1327-2326 Pe* 13 30 05.9395582011 -23 41 49.699027289 13.761 14.01 13.55 13.50 12.803 CEMP-no 209 0
19 Cl Pismis 18 OpC 13 36 56 -62 03.9   10.30 9.7     ~ 31 0
20 NGC 5822 OpC 15 04 28 -54 23.4     6.5     ~ 166 0
21 NGC 6005 OpC 15 55 59 -57 26.4   11.90 10.7     ~ 30 0
22 Cl Trumpler 23 OpC 16 00 52 -53 32.0     11.2     ~ 23 0
23 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1635 0
24 NGC 6397 GlC 17 40 42.09 -53 40 27.6   7.39 5.17     ~ 1755 1
25 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11035 0
26 NGC 6633 OpC 18 27 31.2 +06 34 12           ~ 316 0
27 M 22 GlC 18 36 23.94 -23 54 17.1   7.16 6.17     ~ 1176 0
28 NGC 6705 OpC 18 51 05 -06 16.2   6.32 5.8     ~ 350 0
29 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1647 2
30 Cl Berkeley 81 OpC 19 01 37 -00 27.6           ~ 47 0
31 NGC 6752 GlC 19 10 52.11 -59 59 04.4   6.96 6.28     ~ 1766 0
32 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 341 0
33 NGC 6802 OpC 19 30 36.0 +20 15 34   10.07 8.8     ~ 73 0
34 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2850 0
35 2MASS J21300739+1210330 RG* 21 30 07.3932602856 +12 10 32.998903069   15.059 14.024     ~ 20 0
36 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 883 0

    Equat.    Gal    SGal    Ecl

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2019.11.12-23:44:41

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