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Gaia FGK benchmark ...
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Soubiran, C.Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, B18N,allee Geoffroy St Hilaire, F-33615 Pessac, France.
(författare)
Gaia FGK benchmark stars : Fundamental Teff and log g of the third version
- Artikel/kapitelEngelska2024
Förlag, utgivningsår, omfång ...
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EDP Sciences,2024
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:uu-525072
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-525072URI
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https://doi.org/10.1051/0004-6361/202347136DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Context. Large spectroscopic surveys devoted to the study of the Milky Way, including Gaia, use automated pipelines to determine the atmospheric parameters of millions of stars. The Gaia FGK benchmark stars are reference stars with T-eff and log g derived through fundamental relations, independently of spectroscopy, to be used as anchors for the parameter scale. The first and second versions of the sample have been extensively used for that purpose, and more generally to help constrain stellar models. Aims. We provide the third version of the Gaia FGK benchmark stars, an extended set intended to improve the calibration of spectroscopic surveys, and their interconnection. Methods. We have compiled about 200 candidates that have precise measurements of angular diameters and parallaxes. We determined their bolometric fluxes by fitting their spectral energy distribution. Masses were determined using two sets of stellar evolution models. In a companion paper, we describe the determination of metallicities and detailed abundances. Results. We provide a new set of 192 Gaia FGK benchmark stars with their fundamental T-eff and log g, and with uncertainties lower than 2% for most stars. Compared to the previous versions, the homogeneity and accuracy of the fundamental parameters are significantly improved thanks to the high quality of the Gaia photometric and astrometric data.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Creevey, O. L.Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, 4 Nice, France.
(författare)
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Lagarde, N.Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, B18N,allee Geoffroy St Hilaire, F-33615 Pessac, France.
(författare)
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Brouillet, N.Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, B18N,allee Geoffroy St Hilaire, F-33615 Pessac, France.
(författare)
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Jofre, P.Univ Diego Portales, Fac Ingn & Ciencias, Inst Estudios Astrofis, Av Ejercito Libertador 441, Santiago, Chile.;Millenium Nucleous ERIS, Santiago, Chile.
(författare)
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Casamiquela, L.PSL Res Univ, Sorbonne Paris Cite, GEPI, Observ Paris, 5 Pl Jules Janssen, F-92190 Meudon, France.;Univ Barcelona UB, Inst Ciencies Cosmos ICCUB, Dept Fis Quant & Astrofis, Marti i Franques 1, Barcelona 08028, Spain.
(författare)
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Heiter, UlrikeUppsala universitet,Observationell astrofysik(Swepub:uu)ulhei450
(författare)
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Aguilera-Gomez, C.Pontificia Univ Catolica Chile, Inst Filosofia, Av Vicuna Mackenna 4860, Macul Santiago 7820436, Chile.
(författare)
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Vitali, S.Univ Diego Portales, Fac Ingn & Ciencias, Inst Estudios Astrofis, Av Ejercito Libertador 441, Santiago, Chile.
(författare)
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Worley, C.Te Kura Matu Univ Canterbury, Sch Phys & Chem Sci, Private Bag 4800, Christchurch 8140, New Zealand.;Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England.
(författare)
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de Brito Silva, D.Univ Diego Portales, Fac Ingn & Ciencias, Inst Estudios Astrofis, Av Ejercito Libertador 441, Santiago, Chile.
(författare)
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Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, B18N,allee Geoffroy St Hilaire, F-33615 Pessac, France.Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, 4 Nice, France.
(creator_code:org_t)
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Ingår i:Astronomy and Astrophysics: EDP Sciences6820004-63611432-0746
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Soubiran, C.
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Creevey, O. L.
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Lagarde, N.
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Brouillet, N.
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Jofre, P.
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Casamiquela, L.
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visa fler...
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Heiter, Ulrike
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Aguilera-Gomez, ...
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Vitali, S.
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Worley, C.
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de Brito Silva, ...
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visa färre...
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Uppsala universitet