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Jiang, Chen; Bedding, Timothy R.; Stassun, Keivan G.; Veras, Dimitri; Corsaro, Enrico; Buzasi, Derek L.; Mikolajczyk, Przemyslaw; Zhang, Qian-sheng; Ou, Jian-wen; Campante, Tiago L.; Rodrigues, Thaiise S.; Nsamba, Benard; Bossini, Diego; Kane, Stephen R.; Ong, Jia Mian Joel; Yildiz, Mutlu; Orhan, Zeynep Celik; Ortel, Sibel; Wu, Tao; Zhang, Xinyi; Zhang, Xinyi
{ "@context": "https://schema.org/", "@id": 11545, "@type": "ScholarlyArticle", "creator": [ { "@type": "Person", "affiliation": "Sun Yat Sen Univ, Sch Phys & Astron, 135 Xingang Xi Rd, Guangzhou 510275, Peoples R China", "name": "Jiang, Chen" }, { "@type": "Person", "name": "Bedding, Timothy R." }, { "@type": "Person", "name": "Stassun, Keivan G." }, { "@type": "Person", "name": "Veras, Dimitri" }, { "@type": "Person", "affiliation": "INAF Osservatorio Astrofis Catania, Via S Sofia 78, I-95123 Catania, Italy", "name": "Corsaro, Enrico" }, { "@type": "Person", "affiliation": "Florida Gulf Coast Univ, Dept Chem & Phys, 10501 FGCU Blvd S, Ft Myers, FL 33965 USA", "name": "Buzasi, Derek L." }, { "@type": "Person", "affiliation": "Univ Wroclaw, Astron Inst, Mikolaja Kopernika 11, PL-51622 Wroclaw, Poland", "name": "Mikolajczyk, Przemyslaw" }, { "@type": "Person", "name": "Zhang, Qian-sheng" }, { "@type": "Person", "affiliation": "Sun Yat Sen Univ, Sch Phys & Astron, 135 Xingang Xi Rd, Guangzhou 510275, Peoples R China", "name": "Ou, Jian-wen" }, { "@type": "Person", "name": "Campante, Tiago L." }, { "@type": "Person", "affiliation": "Osservatorio Astron Padova INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy", "name": "Rodrigues, Thaiise S." }, { "@type": "Person", "name": "Nsamba, Benard" }, { "@type": "Person", "affiliation": "Univ Porto, Inst Astrofis & Ciencias Espaco, Rua Estrelas, P-4150762 Porto, Portugal", "name": "Bossini, Diego" }, { "@type": "Person", "affiliation": "Univ Calif Riverside, Dept Earth & Planetary Sci, Riverside, CA 92521 USA", "name": "Kane, Stephen R." }, { "@type": "Person", "affiliation": "Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA", "name": "Ong, Jia Mian Joel" }, { "@type": "Person", "affiliation": "Ege Univ, Sci Fac, Dept Astron & Space Sci, TR-35100 Izmir, Turkey", "name": "Yildiz, Mutlu" }, { "@type": "Person", "affiliation": "Ege Univ, Sci Fac, Dept Astron & Space Sci, TR-35100 Izmir, Turkey", "name": "Orhan, Zeynep Celik" }, { "@type": "Person", "affiliation": "Ege Univ, Sci Fac, Dept Astron & Space Sci, TR-35100 Izmir, Turkey", "name": "Ortel, Sibel" }, { "@type": "Person", "name": "Wu, Tao" }, { "@type": "Person", "name": "Zhang, Xinyi" }, { "@type": "Person", "name": "Zhang, Xinyi" } ], "datePublished": "2020-01-01", "description": "The 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.", "headline": "TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076", "identifier": 11545, "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", "license": "http://www.opendefinition.org/licenses/cc-by", "name": "TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076", "url": "https://aperta.ulakbim.gov.tr/record/11545" }
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