English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076

Jiang, C., Bedding, T. R., Stassun, K. G., Veras, D., Corsaro, E., Buzasi, D. L., et al. (2020). TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076. The Astrophysical Journal, 896(1): 65. doi:10.3847/1538-4357/ab8f29.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076.pdf (Any fulltext), 3MB
 
File Permalink:
-
Name:
TESS Asteroseismic Analysis of the Known Exoplanet Host Star HD 222076.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Jiang, Chen, Author
Bedding, Timothy R., Author
Stassun, Keivan G., Author
Veras, Dimitri, Author
Corsaro, Enrico, Author
Buzasi, Derek L., Author
Mikołajczyk, Przemysław, Author
Zhang, Qian-sheng, Author
Ou, Jian-wen, Author
Campante, Tiago L., Author
Rodrigues, Thaíise S., Author
Nsamba, Benard1, Author              
Bossini, Diego, Author
Kane, Stephen R., Author
Ong, Jia Mian Joel, Author
Yıldız, Mutlu, Author
Orhan, Zeynep Çelik, Author
Örtel, Sibel, Author
Wu, Tao, Author
Zhang, Xinyi, Author
Li, Tanda, AuthorBasu, Sarbani, AuthorCunha, Margarida S., AuthorChristensen-Dalsgaard, Jørgen, AuthorChaplin, William J., Author more..
Affiliations:
1Stellar Evolution, Stellar Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159885              

Content

show
hide
Free keywords: -
 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±0.12M), 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.

Details

show
hide
Language(s):
 Dates: 2020-06-15
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3847/1538-4357/ab8f29
Other: LOCALID: 3254574
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Astrophysical Journal
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 896 (1) Sequence Number: 65 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3