Robust asteroseismic properties of the bright planet host HD 38529
| Autor: | William J. Chaplin, Sibel Örtel, Stephen R. Kane, Tiago L. Campante, Rafael A. García, Savita Mathur, Jakob Rørsted Mosumgaard, Joel Ong, Warrick H. Ball, B. Mosser, M. Deal, M. S. Cunha, Amalie Stokholm, Keivan G. Stassun, Ângela R. G. Santos, Sarbani Basu, Daniel Huber, Martin Bo Nielsen, Victor Silva Aguirre, Benard Nsamba, Derek Buzasi, Z. Çelik Orhan, L. González-Cuesta, Mutlu Yildiz |
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| Přispěvatelé: | Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Ege Üniversitesi |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
oscillations [stars]
media_common.quotation_subject Brown dwarf FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Planet 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Astrophysics::Galaxy Astrophysics media_common Earth and Planetary Astrophysics (astro-ph.EP) Physics [PHYS]Physics [physics] 010308 nuclear & particles physics Subgiant Astronomy and Astrophysics Radius Exoplanet Orbit Stars Astrophysics - Solar and Stellar Astrophysics stars: individual (HD 38529) 13. Climate action Space and Planetary Science Sky individual (HD 38529) [stars] stars: oscillations Astrophysics::Earth and Planetary Astrophysics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Ball, W H, Chaplin, W J, Nielsen, M B, González-Cuesta, L, Mathur, S, Santos, Â R G, García, R, Buzasi, D, Mosser, B, Deal, M, Stokholm, A, Mosumgaard, J R, Silva Aguirre, V, Nsamba, B, Campante, T, Cunha, M S, Ong, J, Basu, S, Örtel, S, Çelik Orhan, Z, Yıldız, M, Stassun, K, Kane, S R & Huber, D 2020, ' Robust asteroseismic properties of the bright planet host HD 38529 ', Monthly Notices of the Royal Astronomical Society, vol. 499, no. 4, pp. 6084-6093 . https://doi.org/10.1093/mnras/staa3190 Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 499 (4), pp.6084-6093. ⟨10.1093/mnras/staa3190⟩ |
| ISSN: | 0035-8711 1365-2966 |
| Popis: | The Transiting Exoplanet Survey Satellite (TESS) is recording short-cadence, high duty-cycle timeseries across most of the sky, which presents the opportunity to detect and study oscillations in interesting stars, in particular planet hosts. We have detected and analysed solar-like oscillations in the bright G4 subgiant HD 38529, which hosts an inner, roughly Jupiter-mass planet on a 14.3d orbit and an outer, low-mass brown dwarf on a 2136 d orbit. We combine results frommultiple stellarmodelling teams to produce robust asteroseismic estimates of the star's properties, including its mass M = 1.48 +/- 0.04 M-circle dot, radius R = 2.68 +/- 0.03 R-circle dot, and age t = 3.07 +/- 0.39 Gyr. Our results confirm that HD 38529 has a mass near the higher end of the range that can be found in the literature and also demonstrate that precise stellar properties can be measured given shorter timeseries than produced by CoRoT, Kepler, or K2. UK Science and Technology Facilities Council (STFC)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [ST/R0023297/1]; Danish National Research FoundationDanmarks Grundforskningsfond [DNRF106]; grant FPI-SO from the Spanish Ministry of Economy and Competitiveness (MINECO) [SEV-2015-0548-17-2, BES-2017-082610]; Spanish Ministry with the Ramon y Cajal fellowship [RYC-2015-17697]; NASANational Aeronautics & Space Administration (NASA) [NNX17AF27G, NNX16AI09G, 80NSSC19K0374]; TESS GI Program under NASA [80NSSC18K1585, 80NSSC19K0385]; Carlsberg FoundationCarlsberg Foundation [CF19-0649]; Independent Research Fund Denmark [7027-00096B]; Alexander von Humboldt Foundation at the Max-Planck-Institut fur Astrophysik; national funds through Fundacao para a Ciencia e Tecnologia (FCT); FCT/MCTES through national funds (PIDDAC) [UIDB/04434/2020, UIDP/04434/2020, PTDC/FIS-AST/30389/2017]; Fundo Europeu de Desenvolvimento Regional (FEDER) through COMPETE2020: Programa Operacional Competitividade e Internacionalizacao [POCI01-0145-FEDER-030389]; European Union's Horizon 2020 research and innovation programme under the H2020 Marie Sklodowska-Curie Actions grant [792848]; Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TUBITAK:118F352]; NASA Explorer ProgramNational Aeronautics & Space Administration (NASA); PLATO-CNES grant WHB, WJC, and MBN thank the UK Science and Technology Facilities Council (STFC) for support under grant ST/R0023297/1. Funding for the Stellar Astrophysics Centre is provided by The Danish National Research Foundation (grant DNRF106). LGC thanks the support from grant FPI-SO from the Spanish Ministry of Economy and Competitiveness (MINECO; research project SEV-2015-0548-17-2 and predoctoral contract BES-2017-082610). SM acknowledges support from the Spanish Ministry with the Ramon y Cajal fellowship number RYC-2015-17697. ARGS acknowledges the support from NASA under grant NNX17AF27G. RAG acknowledges the support of the PLATO-CNES grant. DLB acknowledges support from the TESS GI Program under NASA awards 80NSSC18K1585 and 80NSSC19K0385. JRM acknowledges support from the Carlsberg Foundation (grant CF19-0649). VSA acknowledges support from the Independent Research Fund Denmark (Research grant 7027-00096B). BN acknowledges postdoctoral funding from the Alexander von Humboldt Foundation taken at the Max-Planck-Institut fur Astrophysik. MSC and MD are supported in the form of work contracts funded by national funds through Fundacao para a Ciencia e Tecnologia (FCT). MSC and MD acknowledge support by FCT/MCTES through national funds (PIDDAC) by grants UIDB/04434/2020, UIDP/04434/2020, and PTDC/FIS-AST/30389/2017 and by Fundo Europeu de Desenvolvimento Regional (FEDER) through COMPETE2020: Programa Operacional Competitividade e Internacionalizacao by grant POCI01-0145-FEDER-030389. TC acknowledges support from the European Union's Horizon 2020 research and innovation programme under the H2020 Marie Sklodowska-Curie Actions grant 792848 (PULSATION). SB acknowledges NASA grants NNX16AI09G and 80NSSC19K0374. ZCO, MY, and SO acknowledge the Scientific and Technological Research Council of Turkey (TUBITAK:118F352) This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST). Funding for the TESS mission is provided by the NASA Explorer Program. Calculations in this paper had used the University of Birmingham's BlueBEAR High-Performance Computing service.1 |
| Databáze: | OpenAIRE |
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