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The Gaia-ESO Survey...
The Gaia-ESO Survey : Galactic evolution of sulphur and zinc
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- Duffau, S. (author)
- Pontifical Catholic University of Chile,Millennium Institute for Astrophysics,Andrés Bello National University
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- Caffau, E. (author)
- Paris Observatory
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- Sbordone, L. (author)
- Pontifical Catholic University of Chile,Millennium Institute for Astrophysics,European Southern Observatory Santiago
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- Bonifacio, P (author)
- Paris Observatory
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- Andrievsky, S. (author)
- Odessa I.I. Mechnikov National University,Paris Observatory
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- Korotin, S. (author)
- Crimean Astrophysical Observatory,Odessa I.I. Mechnikov National University
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- Babusiaux, C. (author)
- Paris Observatory
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- Salvadori, S. (author)
- Paris Observatory
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- Monaco, L. (author)
- Andrés Bello National University
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- François, P. (author)
- Paris Observatory,University of Picardie Jules Verne
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- Skúladóttir, A (author)
- University of Groningen,Max Planck Institute for Astronomy
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- Bragaglia, A. (author)
- INAF Osservatorio Astronomico di Bologna
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- Donati, P. (author)
- University of Bologna,INAF Osservatorio Astronomico di Bologna
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- Spina, L. (author)
- University of São Paulo
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- Gallagher, A. J. (author)
- Paris Observatory
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- Ludwig, H. G. (author)
- Paris Observatory,Heidelberg University
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- Christlieb, N. (author)
- Heidelberg University
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- Hansen, C. J. (author)
- University of Copenhagen,Technical University of Darmstadt
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- Mott, A (author)
- Leibniz Institute for Astrophysics Potsdam (AIP)
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- Steffen, M. (author)
- Leibniz Institute for Astrophysics Potsdam (AIP)
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- Zaggia, S. (author)
- INAF - Osservatorio Astronomico di Padova
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- Blanco-Cuaresma, S. (author)
- University of Geneva
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- Calura, F. (author)
- INAF Osservatorio Astronomico di Bologna
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- Friel, E. (author)
- Indiana University
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- Jiménez-Esteban, F. M. (author)
- CSIC Centro de Astrobiologia (INTA)
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- Koch, A. (author)
- Lancaster University
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- Magrini, L. (author)
- INAF - Osservatorio Astrofisico di Arcetri
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- Pancino, E. (author)
- Italian Space Agency,INAF - Osservatorio Astrofisico di Arcetri
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- Tang, B. (author)
- University of Concepción
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- Tautvaišiene, G. (author)
- Vilnius University
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- Vallenari, A. (author)
- INAF - Osservatorio Astronomico di Padova
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- Hawkins, K. (author)
- Columbia University
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- Gilmore, G. (author)
- University of Cambridge
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- Randich, S. (author)
- INAF - Osservatorio Astrofisico di Arcetri
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- Feltzing, S. (author)
- Lund University,Lunds universitet,Astronomi - Har omorganiserats,Institutionen för astronomi och teoretisk fysik - Har omorganiserats,Naturvetenskapliga fakulteten,Lund Observatory - Has been reorganised,Department of Astronomy and Theoretical Physics - Has been reorganised,Faculty of Science
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- Bensby, T. (author)
- Lund University,Lunds universitet,Astronomi - Har omorganiserats,Institutionen för astronomi och teoretisk fysik - Har omorganiserats,Naturvetenskapliga fakulteten,Lund Observatory - Has been reorganised,Department of Astronomy and Theoretical Physics - Has been reorganised,Faculty of Science
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- Flaccomio, E. (author)
- INAF Palermo Astronomical Observatory
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- Smiljanic, R. (author)
- Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
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- Bayo, A (author)
- University of Valparaíso
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- Carraro, G. (author)
- University of Padova
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- Casey, A. R. (author)
- University of Cambridge
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- Costado, M. T. (author)
- CSIC Instituto de Astrofísica de Andalucía (IAA)
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- Damiani, F. (author)
- INAF Palermo Astronomical Observatory
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- Franciosini, E. (author)
- INAF - Osservatorio Astrofisico di Arcetri
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- Hourihane, A. (author)
- University of Cambridge
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- Jofré, P. (author)
- Diego Portales University,University of Cambridge
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- Lardo, C. (author)
- Swiss Federal Institute of Technology
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- Lewis, J (author)
- University of Cambridge
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- Morbidelli, L. (author)
- INAF - Osservatorio Astrofisico di Arcetri
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- Sousa, S. G. (author)
- University of Porto
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- Worley, C. C. (author)
- University of Cambridge
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(creator_code:org_t)
- 2017-08-25
- 2017
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 604
- Related links:
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http://dx.doi.org/10...
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https://www.aanda.or...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- 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 7.5 kpc. 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Galaxy: abundances
- Galaxy: disk
- Galaxy: evolution
- Globular clusters: general
- Open clusters and associations: general
- Stars: abundances
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Duffau, S.
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Caffau, E.
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Sbordone, L.
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Bonifacio, P
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Andrievsky, S.
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Korotin, S.
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show more...
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Babusiaux, C.
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Salvadori, S.
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Monaco, L.
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François, P.
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Skúladóttir, A
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Bragaglia, A.
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Donati, P.
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Spina, L.
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Gallagher, A. J.
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Ludwig, H. G.
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Christlieb, N.
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Hansen, C. J.
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Mott, A
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Steffen, M.
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Zaggia, S.
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Blanco-Cuaresma, ...
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Calura, F.
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Friel, E.
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Jiménez-Esteban, ...
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Koch, A.
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Magrini, L.
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Pancino, E.
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Tang, B.
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Tautvaišiene, G.
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Vallenari, A.
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Hawkins, K.
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Gilmore, G.
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Randich, S.
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Feltzing, S.
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Bensby, T.
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Flaccomio, E.
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Smiljanic, R.
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Bayo, A
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Carraro, G.
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Casey, A. R.
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Costado, M. T.
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Damiani, F.
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Franciosini, E.
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Hourihane, A.
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Jofré, P.
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Lardo, C.
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Lewis, J
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Morbidelli, L.
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Sousa, S. G.
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Worley, C. C.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astronomy and As ...
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Lund University