The Gaia -ESO Survey: radial distribution of abundances in the Galactic disc from open clusters and young-field stars
L. Magrini
,
S. Randich
,
G. Kordopatis
(1)
,
N. Prantzos
(2)
,
D. Romano
,
A. Chieffi
,
M. Limongi
,
P. François
(3)
,
E. Pancino
(4)
,
E. Friel
,
A. Bragaglia
(4)
,
G. Tautvaišienė
,
L. Spina
(5)
,
J. Overbeek
,
T. Cantat-Gaudin
(6)
,
P. Donati
(7)
,
A. Vallenari
(8)
,
R. Sordo
(8)
,
M. Jiménez-Esteban
,
B. Tang
,
A. Drazdauskas
,
S. Sousa
,
S. Duffau
,
P. Jofre
,
G. Gilmore
(9)
,
S. Feltzing
(10)
,
E. Alfaro
,
T. Bensby
,
E. Flaccomio
,
S. Koposov
,
A. Lanzafame
(11)
,
R. Smiljanic
,
A. Bayo
,
G. Carraro
,
A. Casey
(12)
,
M. Costado
,
F. Damiani
(13)
,
E. Franciosini
,
A. Hourihane
,
C. Lardo
(14)
,
J. Lewis
,
L. Monaco
(15)
,
L. Morbidelli
,
G. Sacco
,
L. Sbordone
,
C. Worley
(1)
,
S. Zaggia
1
LAGRANGE -
Joseph Louis LAGRANGE
2 IAP - Institut d'Astrophysique de Paris
3 GEPI - Galaxies, Etoiles, Physique, Instrumentation
4 OABO - INAF - Osservatorio Astronomico di Bologna
5 USP - Universidade de São Paulo = University of São Paulo
6 ICCUB - Institut de Ciencies del Cosmos
7 INRS ( Vandoeuvre lès Nancy) - Institut national de recherche et de sécurité (Vandoeuvre lès Nancy)
8 OAPD - INAF - Osservatorio Astronomico di Padova
9 Institute of Astronomy [Cambridge]
10 Lund Observatory
11 OACT - INAF - Osservatorio Astrofisico di Catania
12 Focas Research Institute
13 UNITO - Università degli studi di Torino = University of Turin
14 EPFL - Ecole Polytechnique Fédérale de Lausanne
15 INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2 IAP - Institut d'Astrophysique de Paris
3 GEPI - Galaxies, Etoiles, Physique, Instrumentation
4 OABO - INAF - Osservatorio Astronomico di Bologna
5 USP - Universidade de São Paulo = University of São Paulo
6 ICCUB - Institut de Ciencies del Cosmos
7 INRS ( Vandoeuvre lès Nancy) - Institut national de recherche et de sécurité (Vandoeuvre lès Nancy)
8 OAPD - INAF - Osservatorio Astronomico di Padova
9 Institute of Astronomy [Cambridge]
10 Lund Observatory
11 OACT - INAF - Osservatorio Astrofisico di Catania
12 Focas Research Institute
13 UNITO - Università degli studi di Torino = University of Turin
14 EPFL - Ecole Polytechnique Fédérale de Lausanne
15 INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
L. Magrini
- Function : Author
- PersonId : 772580
- ORCID : 0000-0003-4486-6802
S. Randich
- Function : Author
D. Romano
- Function : Author
A. Chieffi
- Function : Author
M. Limongi
- Function : Author
P. François
- Function : Author
- PersonId : 1294615
- ORCID : 0000-0001-8698-2217
E. Friel
- Function : Author
A. Bragaglia
- Function : Author
- PersonId : 772583
- ORCID : 0000-0002-0338-7883
G. Tautvaišienė
- Function : Author
L. Spina
- Function : Author
- PersonId : 772590
- ORCID : 0000-0002-9760-6249
J. Overbeek
- Function : Author
T. Cantat-Gaudin
- Function : Author
- PersonId : 772585
- ORCID : 0000-0001-8726-2588
M. Jiménez-Esteban
- Function : Author
B. Tang
- Function : Author
A. Drazdauskas
- Function : Author
S. Sousa
- Function : Author
- PersonId : 780755
- ORCID : 0000-0001-9047-2965
S. Duffau
- Function : Author
P. Jofre
- Function : Author
E. Alfaro
- Function : Author
T. Bensby
- Function : Author
E. Flaccomio
- Function : Author
S. Koposov
- Function : Author
R. Smiljanic
- Function : Author
- PersonId : 772578
- ORCID : 0000-0003-0942-7855
A. Bayo
- Function : Author
- PersonId : 772592
- ORCID : 0000-0001-7868-7031
- IdRef : 26045110X
G. Carraro
- Function : Author
M. Costado
- Function : Author
E. Franciosini
- Function : Author
- PersonId : 772587
- ORCID : 0000-0003-3969-0232
A. Hourihane
- Function : Author
J. Lewis
- Function : Author
L. Morbidelli
- Function : Author
G. Sacco
- Function : Author
L. Sbordone
- Function : Author
S. Zaggia
- Function : Author
Abstract
Context. The spatial distribution of elemental abundances in the disc of our Galaxy gives insights both on its assembly process and subsequent evolution, and on the stellar nucleogenesis of the different elements. Gradients can be traced using several types of objects as, for instance, (young and old) stars, open clusters, HII regions, planetary nebulae.
Aims: We aim to trace the radial distributions of abundances of elements produced through different nucleosynthetic channels - the alpha-elements O, Mg, Si, Ca and Ti, and the iron-peak elements Fe, Cr, Ni and Sc - by use of the Gaia-ESO IDR4 results for open clusters and young-field stars.
Methods: From the UVES spectra of member stars, we have determined the average composition of clusters with ages > 0.1 Gyr. We derived statistical ages and distances of field stars. We traced the abundance gradients using the cluster and field populations and compared them with a chemo-dynamical Galactic evolutionary model.
Results: The adopted chemo-dynamical model, with the new generation of metallicity-dependent stellar yields for massive stars, is able to reproduce the observed spatial distributions of abundance ratios, in particular the abundance ratios of [O/Fe] and [Mg/Fe] in the inner disc (5 kpc
Aims: We aim to trace the radial distributions of abundances of elements produced through different nucleosynthetic channels - the alpha-elements O, Mg, Si, Ca and Ti, and the iron-peak elements Fe, Cr, Ni and Sc - by use of the Gaia-ESO IDR4 results for open clusters and young-field stars.
Methods: From the UVES spectra of member stars, we have determined the average composition of clusters with ages > 0.1 Gyr. We derived statistical ages and distances of field stars. We traced the abundance gradients using the cluster and field populations and compared them with a chemo-dynamical Galactic evolutionary model.
Results: The adopted chemo-dynamical model, with the new generation of metallicity-dependent stellar yields for massive stars, is able to reproduce the observed spatial distributions of abundance ratios, in particular the abundance ratios of [O/Fe] and [Mg/Fe] in the inner disc (5 kpc