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Sökning: onr:"swepub:oai:DiVA.org:uu-406733" > The Gaia-ESO Survey :

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00010007naa a2200865 4500
001oai:DiVA.org:uu-406733
003SwePub
008200319s2020 | |||||||||||000 ||eng|
009oai:lup.lub.lu.se:8cef80a4-ce15-4327-852f-e398dd172272
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4067332 URI
0247 a https://doi.org/10.1051/0004-6361/2019370552 DOI
0247 a https://lup.lub.lu.se/record/8cef80a4-ce15-4327-852f-e398dd1722722 URI
040 a (SwePub)uud (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Baratella, M.u Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy,INAF - Osservatorio Astronomico di Padova4 aut
2451 0a The Gaia-ESO Survey :b a new approach to chemically characterising young open clusters I. Stellar parameters, and iron-peak, alpha-, and proton-capture elements
264 c 2020-01-31
264 1b EDP SCIENCES S A,c 2020
338 a print2 rdacarrier
520 a Context: Open clusters are recognised as excellent tracers of Galactic thin-disc properties. At variance with intermediate-age and old open clusters, for which a significant number of studies is now available, clusters younger than less than or similar to 150 Myr have been mostly overlooked in terms of their chemical composition until recently (with few exceptions). On the other hand, previous investigations seem to indicate an anomalous behaviour of young clusters, which includes (but is not limited to) slightly sub-solar iron (Fe) abundances and extreme, unexpectedly high barium (Ba) enhancements.Aims: In a series of papers, we plan to expand our understanding of this topic and investigate whether these chemical peculiarities are instead related to abundance analysis techniques.Methods: We present a new determination of the atmospheric parameters for 23 dwarf stars observed by the Gaia-ESO survey in five young open clusters (tau < 150 Myr) and one star-forming region (NGC 2264). We exploit a new method based on titanium (Ti) lines to derive the spectroscopic surface gravity, and most importantly, the microturbulence parameter. A combination of Ti and Fe lines is used to obtain effective temperatures. We also infer the abundances of Fe I, Fe II, Tit, Tin,Na I, Mg I, Al I,Sit, Ca I, Cr I, and Ni I.Results: Our findings are in fair agreement with Gaia-ESO iDR5 results for effective temperatures and surface gravities, but suggest that for very young stars, the microturbulence parameter is over-estimated when Fe lines are employed. This affects the derived chemical composition and causes the metal content of very young clusters to be under-estimated.Conclusions: Our clusters display a metallicity [Fe/H] between +0.04 +/- 0.01 and +0.12 +/- 0.02; they are not more metal poor than the Sun. Although based on a relatively small sample size, our explorative study suggests that we may not need to call for ad hoc explanations to reconcile the chemical composition of young open clusters with Galactic chemical evolution models.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a stars: abundances
653 a stars: fundamental parameters
653 a stars: solar-type
653 a open clusters and associations: general
653 a Open clusters and associations: general
653 a Stars: abundances
653 a Stars: fundamental parameters
653 a Stars: solar-type
7001 a D'Orazi, Vu INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy;Monash Univ, Sch Phys & Astron, Monash Ctr Astrophys MoCA, Clayton, Vic 3800, Australia,INAF - Osservatorio Astronomico di Padova,Monash University4 aut
7001 a Carraro, G.u Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy4 aut
7001 a Desidera, S.u INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy,INAF - Osservatorio Astronomico di Padova4 aut
7001 a Randich, S.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,INAF - Osservatorio Astrofisico di Arcetri,Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences4 aut
7001 a Magrini, L.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,INAF - Osservatorio Astrofisico di Arcetri4 aut
7001 a Adibekyan, Vu Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal,University of Porto4 aut
7001 a Smiljanic, R.u Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland4 aut
7001 a Spina, L.u Monash Univ, Sch Phys & Astron, Monash Ctr Astrophys MoCA, Clayton, Vic 3800, Australia,Monash University4 aut
7001 a Tsantaki, M.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,INAF - Osservatorio Astrofisico di Arcetri4 aut
7001 a Tautvaisiene, G.u Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ay 3, LT-10257 Vilnius, Lithuania,Vilnius University4 aut
7001 a Sousa, S. G.u Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal,University of Porto,University of Cambridge,INAF - Osservatorio Astrofisico di Arcetri4 aut
7001 a Jofre, P.u Univ Diego Portales, Fac Ingn, Nucl Astron, Av Ejercito 441, Santiago, Chile,Diego Portales University4 aut
7001 a Jimenez-Esteban, F. M.u CSIC, INTA, Ctr Astrobiol, Dept Astrofis, ESAC Campus,Camino Bajo del Castillo S-N, Madrid 28692, Spain,European Space Astronomy Centre,INAF - Osservatorio Astrofisico di Arcetri4 aut
7001 a Delgado-Mena, E.u Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal,University of Porto4 aut
7001 a Martell, S.u Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia;Ctr Excellence All Sky Astrophys Three Dimens AST, Sydney, NSW, Australia,University of New South Wales,INAF - Osservatorio Astrofisico di Arcetri4 aut
7001 a Van der Swaelmen, M.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy4 aut
7001 a Roccatagliata, Vu INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy;Univ Pisa, Dipartimento Fis Enrico Fermi, Largo Pontecorvo 3, I-56127 Pisa, Italy,INAF - Osservatorio Astrofisico di Arcetri,University of Pisa4 aut
7001 a Gilmore, G.u Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England4 aut
7001 a Alfaro, E. J.u CSIC, Inst Astrofis Andalucia, Apdo 3004, E-18080 Granada, Spain,CSIC Instituto de Astrofísica de Andalucía (IAA)4 aut
7001 a Bayo, A.u Univ Valparaiso, Inst Fis & Astron, Gran Bretana 1111, Valparaiso, Chile;Univ Valparaiso, Nucl Milenio Formac Planetaria, NPF, Valparaiso, Chile,University of Valparaíso4 aut
7001 a Bensby, T.u Lund 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 Science4 aut0 (Swepub:lu)astr-tbe
7001 a Bragaglia, A.u INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy,INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna4 aut
7001 a Franciosini, E.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy4 aut
7001 a Gonneau, A.u Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge4 aut
7001 a Heiter, Ulrikeu Uppsala University,Uppsala universitet,Observationell astrofysik4 aut0 (Swepub:uu)ulhei450
7001 a Hourihane, A.u Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge4 aut
7001 a Jeffries, R. D.u Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England,Keele University4 aut
7001 a Koposov, S. E.u Carnegie Mellon Univ, McWilliams Ctr Cosmol, Dept Phys, 5000 Forbes Ave, Pittsburgh, PA 15213 USA,Carnegie Mellon University4 aut
7001 a Morbidelli, L.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,INAF - Osservatorio Astrofisico di Arcetri4 aut
7001 a Prisinzano, L.u INAF Osservatorio Astron Palermo, Piazza Parlamento 1, I-90134 Palermo, Italy,INAF Palermo Astronomical Observatory4 aut
7001 a Sacco, G.u INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy4 aut
7001 a Sbordone, L.u European Southern Observ, Alonso de Cordova 3107 Vitacura, Santiago, Chile,European Southern Observatory Santiago4 aut
7001 a Worley, C.u Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge4 aut
7001 a Zaggia, S.u INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy,INAF - Osservatorio Astronomico di Padova4 aut
7001 a Lewis, J.u Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge4 aut
7102 a Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italyb INAF - Osservatorio Astronomico di Padova4 org
7730 t Astronomy and Astrophysicsd : EDP SCIENCES S Ag 634q 634x 0004-6361x 1432-0746
8564 u https://www.aanda.org/articles/aa/pdf/2020/02/aa37055-19.pdf
8564 u http://dx.doi.org/10.1051/0004-6361/201937055y FULLTEXT
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-406733
8564 8u https://doi.org/10.1051/0004-6361/201937055
8564 8u https://lup.lub.lu.se/record/8cef80a4-ce15-4327-852f-e398dd172272

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