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The Gaia-ESO survey :
The Gaia-ESO survey : Mapping the shape and evolution of the radial abundance gradients with open clusters
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- Magrini, L. (författare)
- 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 Sciences
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- Vazquez, C. Viscasillas (författare)
- Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Av 3, LT-10257 Vilnius, Lithuania.,Vilnius University
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- Spina, L. (författare)
- INAF Padova Observ, Vicolo Osservatorio 5, I-35122 Padua, Italy.,INAF - Osservatorio Astronomico di Padova
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- Randich, S. (författare)
- 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 Sciences
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- Romano, D. (författare)
- INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy.,INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna
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- Franciosini, E. (författare)
- INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy.,INAF - Osservatorio Astrofisico di Arcetri
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- Recio-Blanco, A. (författare)
- Univ Cote dAzur, CNRS, Observ Cote dAzur, Lab Lagrange, F-06304 Nice, France.,Laboratoire Joseph-Louis Lagrange
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- Nordlander, T. (författare)
- Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia.;ARC Ctr Excellence Astron Three Dimens ASTRO 3D, Canberra, ACT 2611, Australia.,Australian National University
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- D'Orazi, V. (författare)
- INAF Padova Observ, Vicolo Osservatorio 5, I-35122 Padua, Italy.;Univ Roma Tor Vergata, Dipartimento Fis, Via Ric Sci 1, I-00133 Rome, Italy.,INAF - Osservatorio Astronomico di Padova,University of Rome Tor Vergata
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- Baratella, M. (författare)
- Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany.,Leibniz Institute for Astrophysics Potsdam (AIP)
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- Smiljanic, R. (författare)
- Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland.
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- Dantas, M. L. L. (författare)
- Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland.,INAF - Osservatorio Astrofisico di Arcetri
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- Pasquini, L. (författare)
- ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany.,European Southern Observatory
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- Spitoni, E. (författare)
- Univ Cote dAzur, CNRS, Observ Cote dAzur, Lab Lagrange, F-06304 Nice, France.,Laboratoire Joseph-Louis Lagrange
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- Casali, G. (författare)
- INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy.;Univ Bologna, Dipartimento Fis & Astron, Via Gobetti 93-2, I-40129 Bologna, Italy.,INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna,University of Bologna
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- Van der Swaelmen, M. (författare)
- INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy.,INAF - Osservatorio Astrofisico di Arcetri
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- Bensby, T. (författare)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Stonkute, E. (författare)
- Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Av 3, LT-10257 Vilnius, Lithuania.,Vilnius University
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- Feltzing, S. (författare)
- 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 Science
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- Sacco, G. G. (författare)
- INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy.,INAF - Osservatorio Astrofisico di Arcetri,University of Cambridge
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- Bragaglia, A. (författare)
- INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy.,INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna
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- Pancino, E. (författare)
- 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.,INAF - Osservatorio Astrofisico di Arcetri,Italian Space Agency
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- Heiter, Ulrike (författare)
- Uppsala University,Uppsala universitet,Observationell astrofysik
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- Biazzo, K. (författare)
- INAF Rome Observ, Via Frascati 33, Monte Porzio Catone, RM, Italy.,INAF-Osservatorio Astronomico di Roma
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- Gilmore, G. (författare)
- Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England.,Vilnius University
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- Bergemann, M. (författare)
- Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.;Univ Copenhagen, Niels Bohr Inst, Niels Bohr Int Acad, Blegdamsvej 17, DK-2100 Copenhagen, Denmark.,Niels Bohr Institute,Max Planck Institute for Astronomy
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- Tautvaisiene, G. (författare)
- Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Av 3, LT-10257 Vilnius, Lithuania.
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- Worley, C. (författare)
- Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England.,University of Cambridge
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- Hourihane, A. (författare)
- Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England.,University of Cambridge
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- Gonneau, A. (författare)
- Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England.,University of Cambridge
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- Morbidelli, L. (författare)
- INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy.
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INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy INAF - Osservatorio Astrofisico di Arcetri (creator_code:org_t)
- 2023-01-20
- 2023
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 669
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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http://dx.doi.org/10... (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- Context: The spatial distribution of elemental abundances and their time evolution are among the major constraints to disentangling the scenarios of formation and evolution of the Galaxy.Aims: In this paper we used the sample of open clusters available in the final release of the Gaia-ESO survey to trace the Galactic radial abundance and abundance-to-iron ratio gradients, and their time evolution.Methods: We selected member stars in 62 open clusters, with ages from 0.1 to about 7 Gyr, located in the Galactic thin disc at galactocentric radii (R-GC) from about 6 to 21 kpc. We analysed the shape of the resulting [Fe/H] gradient, the average gradients [El/H] and [El/Fe] combining elements belonging to four different nucleosynthesis channels, and their individual abundance and abundance ratio gradients. We also investigated the time evolution of the gradients dividing open clusters in three age bins.Results: The [Fe/H] gradient has a slope of -0.054 dex kpc(-1). It can be better approximated with a two-slope shape, steeper for R-GC <= 11.2 kpc and flatter in the outer regions. We saw different behaviours for elements belonging to different channels. For the time evolution of the gradient, we found that the youngest clusters (age < 1 Gyr) in the inner disc have lower metallicity than their older counterparts and that they outline a flatter gradient. We considered some possible explanations, including the effects of gas inflow and migration. We suggest that the most likely one may be related to a bias introduced by the standard spectroscopic analysis producing lower metallicities in the analysis of low-gravity stars.Conclusions: To delineate the shape of the 'true' gradient, we should most likely limit our analysis to stars with low surface gravity log g> 2.5 and microturbulent parameter xi< 1.8 km s(-1). Based on this reduced sample, we can conclude that the gradient has minimally evolved over the time-frame outlined by the open clusters, indicating a slow and stationary formation of the thin disc over the last 3 Gyr. We found a secondary role of cluster migration in shaping the gradient, with a more prominent role of migration for the oldest clusters.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- stars: abundances
- stars: evolution
- open clusters and associations: general
- Galaxy: evolution
- Galaxy: evolution
- Open clusters and associations: general
- Stars: abundances
- Stars: evolution
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Magrini, L.
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Vazquez, C. Visc ...
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Spina, L.
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Randich, S.
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Romano, D.
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Franciosini, E.
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visa fler...
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Recio-Blanco, A.
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Nordlander, T.
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D'Orazi, V.
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Baratella, M.
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Smiljanic, R.
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Dantas, M. L. L.
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Pasquini, L.
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Spitoni, E.
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Casali, G.
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Van der Swaelmen ...
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Bensby, T.
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Stonkute, E.
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Feltzing, S.
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Sacco, G. G.
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Bragaglia, A.
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Pancino, E.
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Heiter, Ulrike
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Biazzo, K.
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Gilmore, G.
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Bergemann, M.
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Tautvaisiene, G.
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Worley, C.
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Hourihane, A.
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Gonneau, A.
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Morbidelli, L.
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