TESS asteroseismic analysis of the known exoplanet host star HD 222076

Chen Jiang; Timothy R. Bedding; Keivan G. Stassun; Dimitri Veras; Enrico Corsaro; Derek L. Buzasi; Przemysław Mikołajczyk; Qian-sheng Zhang; Jian-wen Ou; Tiago L. Campante; Thaíise S. Rodrigues; Benard Nsamba; Diego Bossini; Stephen R. Kane; Jia Mian Joel Ong; Mutlu Yıldız; Zeynep Çelik Orhan; Sibel Örtel; Tao Wu; Xinyi Zhang; Tanda Li; Sarbani Basu; Margarida S. Cunha; Jørgen Christensen-dalsgaard; William J. Chaplin

doi:10.3847/1538-4357/ab8f29

TESS asteroseismic analysis of the known exoplanet host star HD 222076

Chen Jiang, Timothy R. Bedding, Keivan G. Stassun, Dimitri Veras, Enrico Corsaro, Derek L. Buzasi, Przemysław Mikołajczyk, Qian-sheng Zhang, Jian-wen Ou, Tiago L. Campante, Thaíise S. Rodrigues, Benard Nsamba, Diego Bossini, Stephen R. Kane, Jia Mian Joel Ong, Mutlu Yıldız, Zeynep Çelik Orhan, Sibel Örtel, Tao Wu, Xinyi ZhangTanda Li, Sarbani Basu, Margarida S. Cunha, Jørgen Christensen-dalsgaard, William J. Chaplin

Physics and Astronomy

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Abstract

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 203μHz by TESS for the first time. Asteroseismic modeling, using global asteroseismic parameters as input, yields a determination of the stellar mass (M_* = 1.12 ± 0.12_☉), radius (R_* = 4.34 ± 0.21R_☉), and age (7.4 ± 2.7Gyr), 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 be engulfed into it within about 800Myr, before the tip of the red-giant branch is reached.

Original language	English
Article number	65
Number of pages	10
Journal	The Astrophysical Journal
Volume	896
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/ab8f29
Publication status	Published - 15 Jun 2020

Bibliographical note

18 pages, 6 figures, 2 tables

Keywords

astro-ph.EP
astro-ph.SR

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JiangC2020TESSAccepted author manuscript, 7.66 MBLicence: None: All rights reserved

Cite this

Jiang, C., Bedding, T. R., Stassun, K. G., Veras, D., Corsaro, E., Buzasi, D. L., Mikołajczyk, P., Zhang, Q., Ou, J., Campante, T. L., Rodrigues, T. S., Nsamba, B., Bossini, D., Kane, S. R., Joel Ong, J. M., Yıldız, M., Çelik Orhan, Z., Örtel, S., Wu, T., ... Chaplin, W. J. (2020). TESS asteroseismic analysis of the known exoplanet host star HD 222076. The Astrophysical Journal, 896(1), Article 65. https://doi.org/10.3847/1538-4357/ab8f29

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title = "TESS asteroseismic analysis of the known exoplanet host star HD 222076",

abstract = "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 203μHz by TESS for the first time. Asteroseismic modeling, using global asteroseismic parameters as input, yields a determination of the stellar mass (M* = 1.12 ± 0.12☉), radius (R* = 4.34 ± 0.21R☉), and age (7.4 ± 2.7Gyr), 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 be engulfed into it within about 800Myr, before the tip of the red-giant branch is reached. ",

keywords = "astro-ph.EP, astro-ph.SR",

author = "Chen Jiang and Bedding, {Timothy R.} and Stassun, {Keivan G.} and Dimitri Veras and Enrico Corsaro and Buzasi, {Derek L.} and Przemys{\l}aw Miko{\l}ajczyk and Qian-sheng Zhang and Jian-wen Ou and Campante, {Tiago L.} and Rodrigues, {Tha{\'i}ise S.} and Benard Nsamba and Diego Bossini and Kane, {Stephen R.} and {Joel Ong}, {Jia Mian} and Mutlu Yıldız and {{\c C}elik Orhan}, Zeynep and Sibel {\"O}rtel and Tao Wu and Xinyi Zhang and Tanda Li and Sarbani Basu and Cunha, {Margarida S.} and J{\o}rgen Christensen-dalsgaard and Chaplin, {William J.}",

note = "18 pages, 6 figures, 2 tables",

year = "2020",

month = jun,

day = "15",

doi = "10.3847/1538-4357/ab8f29",

language = "English",

volume = "896",

journal = "The Astrophysical Journal",

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Jiang, C, Bedding, TR, Stassun, KG, Veras, D, Corsaro, E, Buzasi, DL, Mikołajczyk, P, Zhang, Q, Ou, J, Campante, TL, Rodrigues, TS, Nsamba, B, Bossini, D, Kane, SR, Joel Ong, JM, Yıldız, M, Çelik Orhan, Z, Örtel, S, Wu, T, Zhang, X, Li, T, Basu, S, Cunha, MS, Christensen-dalsgaard, J & Chaplin, WJ 2020, 'TESS asteroseismic analysis of the known exoplanet host star HD 222076', The Astrophysical Journal, vol. 896, no. 1, 65. https://doi.org/10.3847/1538-4357/ab8f29

TY - JOUR

T1 - TESS asteroseismic analysis of the known exoplanet host star HD 222076

AU - Jiang, Chen

AU - Bedding, Timothy R.

AU - Stassun, Keivan G.

AU - Veras, Dimitri

AU - Corsaro, Enrico

AU - Buzasi, Derek L.

AU - Mikołajczyk, Przemysław

AU - Zhang, Qian-sheng

AU - Ou, Jian-wen

AU - Campante, Tiago L.

AU - Rodrigues, Thaíise S.

AU - Nsamba, Benard

AU - Bossini, Diego

AU - Kane, Stephen R.

AU - Joel Ong, Jia Mian

AU - Yıldız, Mutlu

AU - Çelik Orhan, Zeynep

AU - Örtel, Sibel

AU - Wu, Tao

AU - Zhang, Xinyi

AU - Li, Tanda

AU - Basu, Sarbani

AU - Cunha, Margarida S.

AU - Christensen-dalsgaard, Jørgen

AU - Chaplin, William J.

N1 - 18 pages, 6 figures, 2 tables

PY - 2020/6/15

Y1 - 2020/6/15

N2 - 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 203μHz by TESS for the first time. Asteroseismic modeling, using global asteroseismic parameters as input, yields a determination of the stellar mass (M* = 1.12 ± 0.12☉), radius (R* = 4.34 ± 0.21R☉), and age (7.4 ± 2.7Gyr), 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 be engulfed into it within about 800Myr, before the tip of the red-giant branch is reached.

AB - 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 203μHz by TESS for the first time. Asteroseismic modeling, using global asteroseismic parameters as input, yields a determination of the stellar mass (M* = 1.12 ± 0.12☉), radius (R* = 4.34 ± 0.21R☉), and age (7.4 ± 2.7Gyr), 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 be engulfed into it within about 800Myr, before the tip of the red-giant branch is reached.

KW - astro-ph.EP

KW - astro-ph.SR

UR - http://www.scopus.com/inward/record.url?scp=85091296275&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/ab8f29

DO - 10.3847/1538-4357/ab8f29

M3 - Article

SN - 0004-637X

VL - 896

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1

M1 - 65

ER -

TESS asteroseismic analysis of the known exoplanet host star HD 222076

Abstract

Bibliographical note

Keywords

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