TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076

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dc.contributor.authorJiang, Chen
dc.contributor.authorBedding, Timothy R.
dc.contributor.authorStassun, Keivan G.
dc.contributor.authorVeras, Dimitri
dc.contributor.authorCorsaro, Enrico
dc.contributor.authorBuzasi, Derek L.
dc.contributor.authorCunha, Margarida S.
dc.date.accessioned2020-12-01T12:01:05Z
dc.date.available2020-12-01T12:01:05Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractThe Transiting Exoplanet Survey Satellite (TESS) is an all-sky survey mission aiming to search for exoplanets that transit bright stars. the high-quality photometric data of TESS are excellent for the asteroseismic study of solar-like stars. in this work, we present an asteroseismic analysis of the red-giant star HD 222076 hosting a long-period (2.4 yr) giant planet discovered through radial velocities. Solar-like oscillations of HD 222076 are detected around 203 mu Hz by TESS for the first time. Asteroseismic modeling, using global asteroseismic parameters as inputs, yields a determination of the stellar mass (M-* = 1.12 +/- 0.12 M-circle dot), radius (R-* = 4.34 +/- 0.21 R-circle dot), and age (7.4 +/- 2.7 Gyr), with precisions greatly improved from previous studies. the period spacing of the dipolar mixed modes extracted from the observed power spectrum reveals that the star is on the red-giant branch burning hydrogen in a shell surrounding the core. We find that the planet will not escape the tidal pull of the star and will be engulfed into it within about 800 Myr, before the tip of the red-giant branch is reached.en_US
dc.description.sponsorshipStrategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB 41000000]; National Key Program for Science and Technology Research and Development [2017YFB0203300]; NASA Explorer ProgramNational Aeronautics & Space Administration (NASA); ESA PRODEXEuropean Space Agency [PEA 4000119301]; Stellar Astrophysics Centre (SAC) - Danish National Research Foundation [DNRF106]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [19lgpy278]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11303087]; Ten Thousand Talents Program of Yunnan Province; Chinese Academy of Sciences (Light of West China Program, Youth Innovation Promotion Association); STFC via an Ernest Rutherford Fellowship [ST/P003850/1]; NSFC of ChinaNational Natural Science Foundation of China (NSFC) [11503076, 11773064, 11873084, 11521303]; Yunnan Applied Basic Research Projects [2017B008]; Youth Innovation Promotion Association of Chinese Academy of Sciences; Whitaker Center for STEM Education at Florida Gulf Coast University; Alexander von Humboldt Foundation at the Max-Planck-Institut fur Astrophysik (MPA); Australian Research CouncilAustralian Research Council [DE 180101104]; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (CartographY)European Research Council (ERC) [804752]; NCN [2016/21/B/ST9/01126]; Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TUBITAK:118F352]; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grantEuropean Union (EU) [792848]; FCT-Fundacao para a Ciencia e a TecnologiaPortuguese Foundation for Science and Technology [UIDB/04434/2020, UIDP/04434/2020, PTDC/FIS-AST/30389/2017]; FEDER-Fundo Europeu de Desenvolvimento Regional through COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao [POCI-01-0145-FEDER-030389]en_US
dc.description.sponsorshipThe project leading to this publication has received funding from the Strategic Priority Research Program of the Chinese Academy of Sciences (grant No. XDB 41000000) and the National Key Program for Science and Technology Research and Development (2017YFB0203300). This paper includes data collected by the TESS mission. Funding for the TESS mission is provided by the NASA Explorer Program. Funding for the TESS Asteroseismic Science Operations Center at Aarhus University is provided by ESA PRODEX (PEA 4000119301) and Stellar Astrophysics Centre (SAC), funded by the Danish National Research Foundation (grant agreement No. DNRF106). J.C. is funded by the Fundamental Research Funds for the Central Universities (grant 19lgpy278) and gratefully thanks Biwei Jiang for the discussions on this work. Q.-S.Z. is cosponsored by the National Natural Science Foundation of China (grant No. 11303087) and the Ten Thousand Talents Program of Yunnan Province, and foundations of the Chinese Academy of Sciences (Light of West China Program, Youth Innovation Promotion Association). D.V. gratefully acknowledges the support of the STFC via an Ernest Rutherford Fellowship (grant ST/P003850/1). T.W. and X.-Y.Z. are thankful for the support from the NSFC of China (grant Nos. 11503076, 11773064, 11873084, and 11521303), from Yunnan Applied Basic Research Projects (grant No. 2017B008) and from Youth Innovation Promotion Association of Chinese Academy of Sciences. T.W. and X.-Y. Z. also gratefully acknowledge the computing time granted by the Yunnan Observatories, and provided on the facilities at the Yunnan Observatories Supercomputing Platform. D.L.B. acknowledges support from the Whitaker Center for STEM Education at Florida Gulf Coast University. B.N. acknowledges postdoctoral funding from the Alexander von Humboldt Foundation taken at the Max-Planck-Institut fur Astrophysik (MPA). T.D.L. acknowledges support from the Australian Research Council (grant DE 180101104), and the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (CartographY GA. 804752). P.M. acknowledges support from NCN grant No. 2016/21/B/ST9/01126. M.Y., Z.C.O., and S.O. acknowledge the Scientific and Technological Research Council of Turkey (TUBITAK:118F352). T.L.C. acknowledges support from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No..792848 (PULSATION). M.S.C. is supported by national funds through FCT-Fundacao para a Ciencia e a Tecnologia-in the form of a work contract and through the research grants UIDB/04434/2020, UIDP/04434/2020 and PTDC/FIS-AST/30389/2017, and by FEDER-Fundo Europeu de Desenvolvimento Regional through COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao (grant: POCI-01-0145-FEDER-030389).en_US
dc.identifier.doi10.3847/1538-4357/ab8f29
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.issn0004-637Xen_US
dc.identifier.issn1538-4357en_US
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85091296275en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ab8f29
dc.identifier.urihttps://hdl.handle.net/11454/62283
dc.identifier.volume896en_US
dc.identifier.wosWOS:000546852600001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofAstrophysical Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleTESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076en_US
dc.typeArticleen_US

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