The Gaia-ESO Survey: The analysis of the hot-star spectra

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The Gaia-ESO Survey : The analysis of the hot-star spectra

Blomme, R. (författare): Royal Observ Belgium, Ringlaan 3, B-1180 Brussels, Belgium,Royal Observatory of Belgium

Daflon, S. (författare): Observ Nacl MCTIC, R Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil,National Observatory Brazil

Gebran, M. (författare): St Marys Coll, Dept Chem & Phys, Notre Dame, IN 46556 USA,Saint Mary's College

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Herrero, A. (författare): Inst Astrofis Canarias, Tenerife 38205, Spain.;Univ La Laguna, Dept Astrofis, Tenerife 38206, Spain,University of La Laguna (ULL),Royal Observatory of Belgium

Lobel, A. (författare): Royal Observ Belgium, Ringlaan 3, B-1180 Brussels, Belgium,Royal Observatory of Belgium

Mahy, L. (författare): Royal Observ Belgium, Ringlaan 3, B-1180 Brussels, Belgium.;Katholieke Univ Leuven, Inst Sterrenkunde, Celestijnlaan 200D,Bus 2401, B-3001 Leuven, Belgium.;Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Bat B5c,Allee 6 Aout,19c, B-4000 Liege, Belgium,Catholic University of Leuven,Royal Observatory of Belgium,University of Liège

Martins, F. (författare): CNRS, LUPM UMR 5299, Pl Eugene Bataillon, F-34095 Montpellier 05, France.;Univ Montpellier, Pl Eugene Bataillon, F-34095 Montpellier 05, France,University of Montpellier,University of Innsbruck

Morel, T. (författare): Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Bat B5c,Allee 6 Aout,19c, B-4000 Liege, Belgium,University of Liège

Berlanas, S. R. (författare): Univ Alicante, Dept Fis Aplicada, Fac Ciencias, Carretera San Vicente S-N, San Vicente Del Raspeig 03690, Spain,University of Alicante,INAF - Osservatorio Astrofisico di Arcetri,Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences

Blazere, A. (författare): Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Bat B5c,Allee 6 Aout,19c, B-4000 Liege, Belgium.;Ctr Natl Etud Spatiales, Toulouse, France,University of Liège,National Centre for Space Studies (CNES)

Fremat, Y. (författare): Royal Observ Belgium, Ringlaan 3, B-1180 Brussels, Belgium,Royal Observatory of Belgium

Gosset, E. (författare): Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Bat B5c,Allee 6 Aout,19c, B-4000 Liege, Belgium,University of Liège

Apellaniz, J. Maiz (författare): CSIC INTA, Ctr Astrobiol, Campus ESAC,Camino Bajo Castillo S-N, Villanueva De La Canada 28692, Spain,CSIC Centro de Astrobiologia (INTA)

Santos, W. (författare): Observ Nacl MCTIC, R Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil,National Observatory Brazil

Semaan, T. (författare): Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Bat B5c,Allee 6 Aout,19c, B-4000 Liege, Belgium.;Univ Geneva, Observ Geneve, Chemin Pegasi 51, CH-1290 Versoix, Switzerland,University of Geneva,University of Liège

Simon-Diaz, S. (författare): Inst Astrofis Canarias, Tenerife 38205, Spain.;Univ La Laguna, Dept Astrofis, Tenerife 38206, Spain,University of La Laguna (ULL),Instituto de Astrofísica de Canarias

Volpi, D. (författare): Royal Observ Belgium, Ringlaan 3, B-1180 Brussels, Belgium,Royal Observatory of Belgium

Holgado, G. (författare): Inst Astrofis Canarias, Tenerife 38205, Spain.;Univ La Laguna, Dept Astrofis, Tenerife 38206, Spain,University of La Laguna (ULL),Instituto de Astrofísica de Canarias

Jimenez-Esteban, F. (författare): Ctr Astrobiol CSIC INTA, Dept Astrofis, ESAC Campus,Camino Bajo Castillo S-N, Madrid 28692, Spain,CSIC Centro de Astrobiologia (INTA),INAF Palermo Astronomical Observatory,INAF - Osservatorio Astrofisico di Arcetri

Nieva, M. F. (författare): Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25-8, A-6020 Innsbruck, Austria

Przybilla, N. (författare): Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25-8, A-6020 Innsbruck, Austria,University of Innsbruck

Gilmore, G. (författare): Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge,University of Padova,INAF - Osservatorio Astrofisico di Arcetri

Randich, S. (författare): INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy

Negueruela, I (författare): Univ Alicante, Dept Fis Aplicada, Fac Ciencias, Carretera San Vicente S-N, San Vicente Del Raspeig 03690, Spain,University of Alicante

Prusti, T. (författare): ESTEC, ESA, POB 299, NL-2200 AG Noordwijk, Netherlands,European Space Research and Technology Centre (ESA/ESTEC)

Vallenari, A. (författare): INAF Padova Observ, Vicolo Osservatorio 5, I-35122 Padua, Italy,INAF - Osservatorio Astronomico di Padova

Alfaro, E. J. (författare): Inst Astrofis Andalucia CSIC, Glorieta Astron S-N, Granada 18008, Spain,CSIC Instituto de Astrofísica de Andalucía (IAA)

Bensby, T. (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

Bragaglia, A. (författare): INAF Osservatorio Astrofis & Sci Spazio, Via P Gobetti 93-3, I-40129 Bologna, Italy,INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna

Flaccomio, E. (författare): INAF Osservatorio Astron Palermo, Piazza Parlamento 1, I-90134 Palermo, Italy

Francois, P. (författare): Univ Paris Diderot, Observ Paris, CNRS, GEPI, 5 Pl Jules Janssen, F-92190 Meudon, France,Paris Observatory

Korn, Andreas, 1972- (författare): Uppsala University,Uppsala universitet,Teoretisk astrofysik,Observationell astrofysik

Lanzafame, A. (författare): Univ Catania, Sez Astrofis, Dipartimento Fis & Astron, Via S Sofia 78, I-95123 Catania, Italy,University of Catania

Pancino, E. (författare): INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy.;Agenzia Spaziale Italiana, Space Sci Data Ctr, Via Politecn, I-00133 Rome, Italy,INAF - Osservatorio Astrofisico di Arcetri,Italian Space Agency

Smiljanic, R. (författare): Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland

Bergemann, M. (författare): Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.;Niels Bohr Int Acad, Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen, Denmark,Niels Bohr Institute,Max Planck Institute for Astronomy

Carraro, G. (författare): Univ Padua, Dipartimento Fis & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy

Franciosini, E. (författare): INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy

Gonneau, A. (författare): Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge

Heiter, Ulrike (författare): Uppsala University,Uppsala universitet,Observationell astrofysik

Hourihane, A. (författare): Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge

Jofre, P. (författare): Univ Diego Portales, Fac Ingn & Ciencias, Nucleo Astron, Av Ejercito 441, Santiago, Chile,Diego Portales University

Magrini, L. (författare): INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,INAF - Osservatorio Astrofisico di Arcetri

Morbidelli, L. (författare): INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy,INAF - Osservatorio Astrofisico di Arcetri

Sacco, G. G. (författare): INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy

Worley, C. C. (författare): Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England,University of Cambridge

Zaggia, S. (författare): INAF Padova Observ, Vicolo Osservatorio 5, I-35122 Padua, Italy,INAF - Osservatorio Astronomico di Padova

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(creator_code:org_t)

2022-05-24
2022
Engelska.
Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 661

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://uu.diva-port... (primary) (Raw object); http://arxiv.org/pdf...; http://dx.doi.org/10...; https://urn.kb.se/re...; https://doi.org/10.1...; https://lup.lub.lu.s...; visa färre...

Tidskriftsartikel (refereegranskat)

Abstract Ämnesord

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Context. The Gaia-ESO Survey (GES) is a large public spectroscopic survey that has collected, over a period of six years, spectra of similar to 10(5) stars. This survey provides not only the reduced spectra, but also the stellar parameters and abundances resulting from the analysis of the spectra.Aims. The GES dataflow is organised in 19 working groups. Working group 13 (WG13) is responsible for the spectral analysis of the hottest stars (O, B, and A type, with a formal cutoff of T-eff > 7000 K) that were observed as part of GES. We present the procedures and techniques that have been applied to the reduced spectra in order to determine the stellar parameters and abundances of these stars.Methods. The procedure used was similar to that of other working groups in GES. A number of groups (called Nodes) each independently analyse the spectra via state-of-the-art techniques and codes. Specific for the analysis in WG13 was the large temperature range covered (T-eff approximate to 7000-50 000 K), requiring the use of different analysis codes. Most Nodes could therefore only handle part of the data. Quality checks were applied to the results of these Nodes by comparing them to benchmark stars, and by comparing them to one another. For each star the Node values were then homogenised into a single result: the recommended parameters and abundances.Results. Eight Nodes each analysed part of the data. In total 17 693 spectra of 6462 stars were analysed, most of them in 37 open star clusters. The homogenisation led to stellar parameters for 5584 stars. Abundances were determined for a more limited number of stars. The elements studied are He, C, N, O, Ne, Mg, Al, Si, and Sc. Abundances for at least one of these elements were determined for 292 stars. Conclusions. The hot-star data analysed here, as well as the GES data in general, will be of considerable use in future studies of stellar evolution and open clusters.

Ämnesord

NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Nyckelord

surveys
catalogs
stars: fundamental parameters
stars: abundances
stars: early-type
techniques: spectroscopic
Catalogs
Stars: abundances
Stars: early-type
Stars: fundamental parameters
Surveys
Techniques: spectroscopic

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