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The Gaia-ESO survey :
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Casali, G.Univ Firenze, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Florence, Italy;INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,University of Florence,INAF - Osservatorio Astrofisico di Arcetri
(author)
The Gaia-ESO survey : Calibrating a relationship between age and the [C/N] abundance ratio with open clusters
- Article/chapterEnglish2019
Publisher, publication year, extent ...
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2019-09-05
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EDP SCIENCES S A,2019
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-394198
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-394198URI
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https://doi.org/10.1051/0004-6361/201935282DOI
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https://lup.lub.lu.se/record/d47639e4-8230-4441-936c-e271de461bfcURI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Context: In the era of large high-resolution spectroscopic surveys such as Gaia-ESO and APOGEE, high-quality spectra can contribute to our understanding of the Galactic chemical evolution by providing abundances of elements that belong to the different nucleosynthesis channels, and also by providing constraints to one of the most elusive astrophysical quantities: stellar age.Aims: Some abundance ratios, such as [C/N], have been proven to be excellent indicators of stellar ages. We aim at providing an empirical relationship between stellar ages and [C/N] using open star clusters, observed by the Gaia-ESO and APOGEE surveys, as calibrators.Methods: We used stellar parameters and abundances from the Gaia-ESO Survey and APOGEE Survey of the Galactic field and open cluster stars. Ages of star clusters were retrieved from the literature sources and validated using a common set of isochrones. We used the same isochrones to determine for each age and metallicity the surface gravity at which the first dredge-up and red giant branch bump occur. We studied the effect of extra-mixing processes in our sample of giant stars, and we derived the mean [C/N] in evolved stars, including only stars without evidence of extra mixing. By combining the Gaia-ESO and APOGEE samples of open clusters, we derived a linear relationship between [C/N] and (logarithmic) cluster ages.Results: We apply our relationship to selected giant field stars in the Gaia-ESO and APOGEE surveys. We find an age separation between thin-and thick-disc stars and age trends within their populations, with an increasing age towards lower metallicity populations.Conclusions: With this empirical relationship, we are able to provide an age estimate for giant stars in which C and N abundances are measured. For giant stars, the isochrone fitting method is indeed less sensitive than for dwarf stars at the turn-off. Our method can therefore be considered as an additional tool to give an independent estimate of the age of giant stars. The uncertainties in their ages is similar to those obtained using isochrone fitting for dwarf stars.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Magrini, L.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
(author)
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Tognelli, E.INFN, Sez Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy;Univ Pisa, Dipartimento Fis, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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Jackson, R.Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England
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Jeffries, R. D.Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England
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Lagarde, N.Univ Bourgogne Franche Comte, Inst UTINAM, CNRS,Observ Besancon, UMR6213,OSU THETA Franche Comte Bourgogne, BP 1615, F-25010 Besancon, France
(author)
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Tautvaisiene, G.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Masseron, T.Inst Astrofis Canarias, Tenerife 38205, Spain;Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain
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Degl'Innocenti, S.INFN, Sez Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy;Univ Pisa, Dipartimento Fis, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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Moroni, P. G. PradaINFN, Sez Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy;Univ Pisa, Dipartimento Fis, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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Kordopatis, G.Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Nice, France
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Pancino, E.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy;Agenzia Spaziale Italiana, Space Sci Data Ctr, Via Politecn Snc, I-00133 Rome, Italy
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Randich, S.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Feltzing, SofiaLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science(Swepub:lu)astr-sfe
(author)
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Sahlholdt, ChristianLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science(Swepub:lu)ch7073sa
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Spina, L.Monash Univ, Sch Phys & Astron, Monash Ctr Astrophys, Clayton, Vic 3800, Australia
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Friel, E.Indiana Univ, Dept Astron, Bloomington, IN 47405 USA
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Roccatagliata, V.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy;Univ Pisa, Dipartimento Fis, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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Sanna, N.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Bragaglia, A.INAF Osservatorio Astron Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy
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Drazdauskas, A.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Mikolaitis, S.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Minkeviciute, R.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Stonkute, E.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Chorniy, Y.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Bagdonas, V.Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
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Jimenez-Esteban, F.CSIC, INTA, Dept Astrofis, ESAC Campus,Camino Bajo Castillo S-N, Madrid, Spain
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Martell, S.Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia;Ctr Excellence Astrophys Three Dimens ASTRO 3D, Brisbane, Qld, Australia
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Van der Swaelmen, M.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Gilmore, G.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
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Vallenari, A.INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
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Bensby, ThomasLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science(Swepub:lu)astr-tbe
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Koposov, S. E.Carnegie Mellon Univ, McWilliams Ctr Cosmol, Dept Phys, 5000 Forbes Ave, Pittsburgh, PA 15213 USA
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Korn, Andreas,1972-Uppsala universitet,Observationell astrofysik(Swepub:uu)ankor103
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Worley, C.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
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Smiljanic, R.Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland
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Bergemann, M.Max Planck Inst Astron, D-69117 Heidelberg, Germany
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Carraro, G.Univ Padua, Dipartimento Fis & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy
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Damiani, F.INAF Osservatorio Astron Palermo GS Vaiana, Piazza Parlamento 1, I-90134 Palermo, Italy
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Prisinzano, L.INAF Osservatorio Astron Palermo GS Vaiana, Piazza Parlamento 1, I-90134 Palermo, Italy
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Bonito, R.INAF Osservatorio Astron Palermo GS Vaiana, Piazza Parlamento 1, I-90134 Palermo, Italy
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Franciosini, E.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Gonneau, A.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
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Hourihane, A.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
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Jofre, P.Univ Diego Portales, Fac Ingn, Nucleo Astron, Ave Ejercito 441, Santiago, Chile
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Lewis, J.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
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Morbidelli, L.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Sacco, G.INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Sousa, S. G.Univ Porto, Inst Astrofis & Ciencias Espaco CAUP, Rua Estrelas, P-4150762 Porto, Portugal
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Zaggia, S.INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
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Lanzafame, A. C.Univ Catania, Dipartimento Fis & Astron, Sez Astrofis, Via S Sofia 78, I-95123 Catania, Italy
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Heiter, UlrikeUppsala universitet,Observationell astrofysik(Swepub:uu)ulhei450
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Frasca, A.INAF Osservatorio Astrofis Catania, Via S Sofia 78, I-95123 Catania, Italy
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Bayo, A.Univ Valparaiso, Inst Fis & Astron, Valparaiso, Chile,University of Valparaíso
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Univ Firenze, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Florence, Italy;INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, ItalyUniversity of Florence
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In:Astronomy and Astrophysics: EDP SCIENCES S A6290004-63611432-0746
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Casali, G.
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Magrini, L.
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Tognelli, E.
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Jackson, R.
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Jeffries, R. D.
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Lagarde, N.
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Tautvaisiene, G.
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Masseron, T.
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Degl'Innocenti, ...
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Moroni, P. G. Pr ...
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Kordopatis, G.
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Pancino, E.
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Randich, S.
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Feltzing, Sofia
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Sahlholdt, Chris ...
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Spina, L.
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Friel, E.
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Roccatagliata, V ...
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Sanna, N.
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Bragaglia, A.
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Drazdauskas, A.
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Mikolaitis, S.
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Minkeviciute, R.
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Stonkute, E.
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Chorniy, Y.
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Bagdonas, V.
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Jimenez-Esteban, ...
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Martell, S.
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Van der Swaelmen ...
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Gilmore, G.
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Vallenari, A.
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Bensby, Thomas
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Koposov, S. E.
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Korn, Andreas, 1 ...
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Worley, C.
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Smiljanic, R.
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Bergemann, M.
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Carraro, G.
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Damiani, F.
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Prisinzano, L.
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Bonito, R.
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Franciosini, E.
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Gonneau, A.
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Hourihane, A.
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Jofre, P.
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Lewis, J.
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Morbidelli, L.
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Sacco, G.
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Sousa, S. G.
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Zaggia, S.
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Lanzafame, A. C.
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Heiter, Ulrike
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Frasca, A.
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Bayo, A.
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