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The SAPP pipeline f...
The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission
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- Gent, Matthew Raymond (författare)
- Max Planck Inst Astron, D-69117 Heidelberg, Germany
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- Bergemann, Maria (författare)
- Max Planck Inst Astron, D-69117 Heidelberg, Germany.;Univ Copenhagen, Niels Bohr Int Acad, NBI, Blegdamsvej 17, DK-2100 Copenhagen, Denmark
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- Serenelli, Aldo (författare)
- Max Planck Inst Astron, D-69117 Heidelberg, Germany.;CSIC, Inst Space Sci, ICE, Carrer Can Magrans S-N, Cerdanyola Del Valles 08193, Spain.;Inst Estudis Espacials Catalunya IEEC, Carrer Gran Capita 2, Barcelona 08034, Spain
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- Casagrande, Luca (författare)
- Australian Natl Univ, Res Sch Astron & Astrophys, Mt Stromlo Observ, Canberra, ACT 2611, Australia
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- Gerber, Jeffrey M. (författare)
- Max Planck Inst Astron, D-69117 Heidelberg, Germany
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- Heiter, Ulrike (författare)
- Uppsala universitet,Observationell astrofysik
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- Kovalev, Mikhail (författare)
- Max Planck Inst Astron, D-69117 Heidelberg, Germany.;Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Yunnan, Peoples R China
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- Morel, Thierry (författare)
- Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Quartier Agora,Allee 6 Aout 19c,Bat B5C, B-4000 Liege, Belgium
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- Nardetto, Nicolas (författare)
- Univ Cote dAzur, Observ Cote dAzur, CNRS, Lagrange, CS 34229, Nice, France
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- Adibekyan, Vardan (författare)
- MTA ELTE Exoplanet Res Grp, Budapest, Hungary.;Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
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- Aguirre, Victor Silva (författare)
- Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120-1520, DK-8000 Aarhus, Denmark
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- Asplund, Martin (författare)
- Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85741 Garching, Germany
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- Belkacem, Kevin (författare)
- LESIA, Observ Paris Site Meudon, 5 P1 Jules Janssen, F-92195 Meudon, France
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- del Burgo, Carlos (författare)
- Inst Nacl Astrofis Opt & Electr, Luis Enrique Erro 1, Puebla 72840, Mexico.;Inst Astrofis Canarias, Tenerife 38205, Spain
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- Bigot, Lionel (författare)
- Univ Cote dAzur, Observ Cote dAzur, CNRS, Lagrange, CS 34229, Nice, France
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- Chiavassa, Andrea (författare)
- Univ Cote dAzur, Observ Cote dAzur, CNRS, Lagrange, CS 34229, Nice, France
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- Diaz, Luisa Fernanda Rodriguez (författare)
- Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120-1520, DK-8000 Aarhus, Denmark
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- Goupil, Marie-Jo (författare)
- LESIA, Observ Paris Site Meudon, 5 P1 Jules Janssen, F-92195 Meudon, France
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- Hernandez, Jonay I. Gonzalez (författare)
- Inst Astrofis Canarias, Tenerife 38205, Spain.;Univ La Laguna, Dept Astrofis, Tenerife 38206, Spain
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- Mourard, Denis (författare)
- Univ Cote dAzur, Observ Cote dAzur, CNRS, Lagrange, CS 34229, Nice, France
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- Merle, Thibault (författare)
- Univ Libre Bruxelles, Inst Astron & dAstrophys, CP 226,Blvd Triomphe, B-1050 Brussels, Belgium
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- Meszaros, Szabolcs (författare)
- Eotvos Lorand Univ, Gothard Astrophys Observ, Szent Imre H St 112, H-9700 Szombathely, Hungary.;MTA ELTE Exoplanet Res Grp, Budapest, Hungary.;MTA ELTE Lendulet Milky Way Res Grp, Budapest, Hungary
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- Marshall, Douglas J. (författare)
- Univ Toulouse, IRAP, UPS OMP, F-31028 Toulouse 4, France.;IRAP, CNRS, 9 Av Colonel Roche,BP 44346, F-31028 Toulouse 4, France
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- Ouazzani, Rhita-Maria (författare)
- LESIA, Observ Paris Site Meudon, 5 P1 Jules Janssen, F-92195 Meudon, France
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- Plez, Bertrand (författare)
- Univ Montpellier, CNRS, LUPM, Montpellier, France
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- Reese, Daniel (författare)
- Observ Paris, LESIA, Bat 14 Soleil Planetes,5 Pl Jules Janssen, F-92195 Meudon, France
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- Trampedach, Regner (författare)
- Space Sci Inst, 4765 Walnut St, Boulder, CO 80301 USA
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- Tsantaki, Maria (författare)
- Ist Nazl Astrofis INAF, Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
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Max Planck Inst Astron, D-69117 Heidelberg, Germany Max Planck Inst Astron, D-69117 Heidelberg, Germany;Univ Copenhagen, Niels Bohr Int Acad, NBI, Blegdamsvej 17, DK-2100 Copenhagen, Denmark (creator_code:org_t)
- 2022-02-11
- 2022
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 658
- 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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https://www.aanda.or...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We introduce the SAPP (Stellar Abundances and atmospheric Parameters Pipeline), the prototype of the code that will be used to determine parameters of stars observed within the core program of the PLATO space mission. The pipeline is based on the Bayesian inference and provides effective temperature, surface gravity, metallicity, chemical abundances, and luminosity. The code in its more general version has a much wider range of potential applications. It can also provide masses, ages, and radii of stars and can be used with stellar types not targeted by the PLATO core program, such as red giants. We validate the code on a set of 27 benchmark stars that includes 19 FGK-type dwarfs, 6 GK-type subgiants, and 2 red giants. Our results suggest that combining various observables is the optimal approach, as this allows the degeneracies between different parameters to be broken and yields more accurate values of stellar parameters and more realistic uncertainties. For the PLATO core sample, we obtain a typical uncertainty of 27 (syst.) +/- 37 (stat.) K for T-eff, 0.00 +/- 0.01 dex for log g, 0.02 +/- 0.02 dex for metallicity [Fe/H], -0.01 +/- 0.03 R-circle dot for radii, -0.01 +/- 0.05 M-circle dot for stellar masses, and -0.14 +/- 0.63 Gyr for ages. We also show that the best results are obtained by combining the nu(max) scaling relation with stellar spectra. This resolves the notorious problem of degeneracies, which is particularly important for F-type stars.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- surveys
- stars: fundamental parameters
- stars: solar-type
- stars: abundances
- stars: atmospheres
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Gent, Matthew Ra ...
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Bergemann, Maria
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Serenelli, Aldo
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Casagrande, Luca
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Gerber, Jeffrey ...
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Heiter, Ulrike
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visa fler...
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Kovalev, Mikhail
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Morel, Thierry
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Nardetto, Nicola ...
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Adibekyan, Varda ...
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Aguirre, Victor ...
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Asplund, Martin
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Belkacem, Kevin
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del Burgo, Carlo ...
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Bigot, Lionel
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Chiavassa, Andre ...
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Diaz, Luisa Fern ...
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Goupil, Marie-Jo
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Hernandez, Jonay ...
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Mourard, Denis
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Merle, Thibault
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Meszaros, Szabol ...
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Marshall, Dougla ...
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Ouazzani, Rhita- ...
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Plez, Bertrand
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Reese, Daniel
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Trampedach, Regn ...
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Tsantaki, Maria
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Uppsala universitet