Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: Resolving the retired A-star mass controversy

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Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS : Resolving the retired A-star mass controversy. / Malla, Sai Prathyusha; Stello, Dennis; Huber, Daniel; Montet, Benjamin T.; Bedding, Timothy R.; Andersen, Mads Fredslund; Grundahl, Frank; Jessen-Hansen, Jens; Hey, Daniel R.; Palle, Pere L.; Deng, Licai; Zhang, Chunguang; Chen, Xiaodian; Lloyd, James; Antoci, Victoria.

I: Monthly Notices of the Royal Astronomical Society, Bind 496, Nr. 4, 08.2020, s. 5423-5435.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Malla, SP, Stello, D, Huber, D, Montet, BT, Bedding, TR, Andersen, MF, Grundahl, F, Jessen-Hansen, J, Hey, DR, Palle, PL, Deng, L, Zhang, C, Chen, X, Lloyd, J & Antoci, V 2020, 'Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: Resolving the retired A-star mass controversy', Monthly Notices of the Royal Astronomical Society, bind 496, nr. 4, s. 5423-5435. https://doi.org/10.1093/mnras/staa1793

APA

Malla, S. P., Stello, D., Huber, D., Montet, B. T., Bedding, T. R., Andersen, M. F., Grundahl, F., Jessen-Hansen, J., Hey, D. R., Palle, P. L., Deng, L., Zhang, C., Chen, X., Lloyd, J., & Antoci, V. (2020). Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: Resolving the retired A-star mass controversy. Monthly Notices of the Royal Astronomical Society, 496(4), 5423-5435. https://doi.org/10.1093/mnras/staa1793

CBE

Malla SP, Stello D, Huber D, Montet BT, Bedding TR, Andersen MF, Grundahl F, Jessen-Hansen J, Hey DR, Palle PL, Deng L, Zhang C, Chen X, Lloyd J, Antoci V. 2020. Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: Resolving the retired A-star mass controversy. Monthly Notices of the Royal Astronomical Society. 496(4):5423-5435. https://doi.org/10.1093/mnras/staa1793

MLA

Vancouver

Malla SP, Stello D, Huber D, Montet BT, Bedding TR, Andersen MF o.a. Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: Resolving the retired A-star mass controversy. Monthly Notices of the Royal Astronomical Society. 2020 aug;496(4):5423-5435. https://doi.org/10.1093/mnras/staa1793

Author

Malla, Sai Prathyusha ; Stello, Dennis ; Huber, Daniel ; Montet, Benjamin T. ; Bedding, Timothy R. ; Andersen, Mads Fredslund ; Grundahl, Frank ; Jessen-Hansen, Jens ; Hey, Daniel R. ; Palle, Pere L. ; Deng, Licai ; Zhang, Chunguang ; Chen, Xiaodian ; Lloyd, James ; Antoci, Victoria. / Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS : Resolving the retired A-star mass controversy. I: Monthly Notices of the Royal Astronomical Society. 2020 ; Bind 496, Nr. 4. s. 5423-5435.

Bibtex

@article{0a94941c4c66411da0f1ffefd7c811db,
title = "Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: Resolving the retired A-star mass controversy",
abstract = "The study of planet occurrence as a function of stellar mass is important for a better understanding of planet formation. Estimating stellar mass, especially in the red giant regime, is difficult. In particular, stellar masses of a sample of evolved planet-hosting stars based on spectroscopy and grid-based modelling have been put to question over the past decade with claims they were overestimated. Although efforts have been made in the past to reconcile this dispute using asteroseismology, results were inconclusive. In an attempt to resolve this controversy, we study four more evolved planet-hosting stars in this paper using asteroseismology, and we revisit previous results to make an informed study of the whole ensemble in a self-consistent way. For the four new stars, we measure their masses by locating their characteristic oscillation frequency, vmax, from their radial velocity time series observed by SONG. For two stars, we are also able to measure the large frequency separation, A v, helped by extended SONG single-site and dual-site observations and new Transiting Exoplanet Survey Satellite observations. We establish the robustness of the vmax-only-based results by determining the stellar mass from Av, and from both Av and vmax. We then compare the seismic masses of the full ensemble of 16 stars with the spectroscopic masses from three different literature sources. We find an offset between the seismic and spectroscopic mass scales that is mass dependent, suggesting that the previously claimed overestimation of spectroscopic masses only affects stars more massive than about 1.6 M. ",
keywords = "Stars: evolution, Stars: fundamental parameters, Stars: oscillations, Techniques: radial velocities",
author = "Malla, {Sai Prathyusha} and Dennis Stello and Daniel Huber and Montet, {Benjamin T.} and Bedding, {Timothy R.} and Andersen, {Mads Fredslund} and Frank Grundahl and Jens Jessen-Hansen and Hey, {Daniel R.} and Palle, {Pere L.} and Licai Deng and Chunguang Zhang and Xiaodian Chen and James Lloyd and Victoria Antoci",
year = "2020",
month = aug,
doi = "10.1093/mnras/staa1793",
language = "English",
volume = "496",
pages = "5423--5435",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS

T2 - Resolving the retired A-star mass controversy

AU - Malla, Sai Prathyusha

AU - Stello, Dennis

AU - Huber, Daniel

AU - Montet, Benjamin T.

AU - Bedding, Timothy R.

AU - Andersen, Mads Fredslund

AU - Grundahl, Frank

AU - Jessen-Hansen, Jens

AU - Hey, Daniel R.

AU - Palle, Pere L.

AU - Deng, Licai

AU - Zhang, Chunguang

AU - Chen, Xiaodian

AU - Lloyd, James

AU - Antoci, Victoria

PY - 2020/8

Y1 - 2020/8

N2 - The study of planet occurrence as a function of stellar mass is important for a better understanding of planet formation. Estimating stellar mass, especially in the red giant regime, is difficult. In particular, stellar masses of a sample of evolved planet-hosting stars based on spectroscopy and grid-based modelling have been put to question over the past decade with claims they were overestimated. Although efforts have been made in the past to reconcile this dispute using asteroseismology, results were inconclusive. In an attempt to resolve this controversy, we study four more evolved planet-hosting stars in this paper using asteroseismology, and we revisit previous results to make an informed study of the whole ensemble in a self-consistent way. For the four new stars, we measure their masses by locating their characteristic oscillation frequency, vmax, from their radial velocity time series observed by SONG. For two stars, we are also able to measure the large frequency separation, A v, helped by extended SONG single-site and dual-site observations and new Transiting Exoplanet Survey Satellite observations. We establish the robustness of the vmax-only-based results by determining the stellar mass from Av, and from both Av and vmax. We then compare the seismic masses of the full ensemble of 16 stars with the spectroscopic masses from three different literature sources. We find an offset between the seismic and spectroscopic mass scales that is mass dependent, suggesting that the previously claimed overestimation of spectroscopic masses only affects stars more massive than about 1.6 M.

AB - The study of planet occurrence as a function of stellar mass is important for a better understanding of planet formation. Estimating stellar mass, especially in the red giant regime, is difficult. In particular, stellar masses of a sample of evolved planet-hosting stars based on spectroscopy and grid-based modelling have been put to question over the past decade with claims they were overestimated. Although efforts have been made in the past to reconcile this dispute using asteroseismology, results were inconclusive. In an attempt to resolve this controversy, we study four more evolved planet-hosting stars in this paper using asteroseismology, and we revisit previous results to make an informed study of the whole ensemble in a self-consistent way. For the four new stars, we measure their masses by locating their characteristic oscillation frequency, vmax, from their radial velocity time series observed by SONG. For two stars, we are also able to measure the large frequency separation, A v, helped by extended SONG single-site and dual-site observations and new Transiting Exoplanet Survey Satellite observations. We establish the robustness of the vmax-only-based results by determining the stellar mass from Av, and from both Av and vmax. We then compare the seismic masses of the full ensemble of 16 stars with the spectroscopic masses from three different literature sources. We find an offset between the seismic and spectroscopic mass scales that is mass dependent, suggesting that the previously claimed overestimation of spectroscopic masses only affects stars more massive than about 1.6 M.

KW - Stars: evolution

KW - Stars: fundamental parameters

KW - Stars: oscillations

KW - Techniques: radial velocities

UR - http://www.scopus.com/inward/record.url?scp=85095415763&partnerID=8YFLogxK

U2 - 10.1093/mnras/staa1793

DO - 10.1093/mnras/staa1793

M3 - Journal article

AN - SCOPUS:85095415763

VL - 496

SP - 5423

EP - 5435

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 4

ER -