Non-adiabatic study of the Kepler subgiant KIC 6442183

M. Grosjean; M. A. Dupret; K. Belkacem; O. Benomar; S. Deheuvels; R. Samadi; A. Grigahcene

doi:10.1051/epjconf/201510106028

Non-adiabatic study of the Kepler subgiant KIC 6442183

M. Grosjean, M. A. Dupret, K. Belkacem, O. Benomar, S. Deheuvels, R. Samadi, A. Grigahcene

Center for Space Science

Research output: Contribution to journal › Conference article › peer-review

Abstract

Thanks to the precision of Kepler observations, [3] were able to measure the linewidth and amplitude of individual modes (including mixed modes) in several subgiant power spectra. We perform a forward modelling of a Kepler subgiant based on surface properties and observed frequencies. Non-adiabatic computations including a time- dependent treatment of convection give the lifetimes of radial and non-radial modes. Next, combining the lifetimes and inertias with a stochastic excitation model gives the amplitudes of the modes. We can now directly compare theoretical and observed linewidths and amplitudes of mixed-modes to obtain new constraints on our theoretical models.

Original language	English (US)
Article number	06028
Journal	EPJ Web of Conferences
Volume	101
DOIs	https://doi.org/10.1051/epjconf/201510106028
State	Published - Sep 23 2015
Event	CoRoT Symposium 3, Kepler KASC-7 Joint Meeting on Space Photometry Revolution - Toulouse, France Duration: Jul 6 2014 → Jul 11 2014

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1051/epjconf/201510106028

Fingerprint Dive into the research topics of 'Non-adiabatic study of the Kepler subgiant KIC 6442183'. Together they form a unique fingerprint.

Cite this

@article{95d204299ef145568d47c223ed396a2f,

title = "Non-adiabatic study of the Kepler subgiant KIC 6442183",

abstract = "Thanks to the precision of Kepler observations, [3] were able to measure the linewidth and amplitude of individual modes (including mixed modes) in several subgiant power spectra. We perform a forward modelling of a Kepler subgiant based on surface properties and observed frequencies. Non-adiabatic computations including a time- dependent treatment of convection give the lifetimes of radial and non-radial modes. Next, combining the lifetimes and inertias with a stochastic excitation model gives the amplitudes of the modes. We can now directly compare theoretical and observed linewidths and amplitudes of mixed-modes to obtain new constraints on our theoretical models.",

author = "M. Grosjean and Dupret, {M. A.} and K. Belkacem and O. Benomar and S. Deheuvels and R. Samadi and A. Grigahcene",

year = "2015",

month = sep,

day = "23",

doi = "10.1051/epjconf/201510106028",

language = "English (US)",

volume = "101",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

publisher = "EDP Sciences",

note = "CoRoT Symposium 3, Kepler KASC-7 Joint Meeting on Space Photometry Revolution ; Conference date: 06-07-2014 Through 11-07-2014",

}

TY - JOUR

T1 - Non-adiabatic study of the Kepler subgiant KIC 6442183

AU - Grosjean, M.

AU - Dupret, M. A.

AU - Belkacem, K.

AU - Benomar, O.

AU - Deheuvels, S.

AU - Samadi, R.

AU - Grigahcene, A.

PY - 2015/9/23

Y1 - 2015/9/23

N2 - Thanks to the precision of Kepler observations, [3] were able to measure the linewidth and amplitude of individual modes (including mixed modes) in several subgiant power spectra. We perform a forward modelling of a Kepler subgiant based on surface properties and observed frequencies. Non-adiabatic computations including a time- dependent treatment of convection give the lifetimes of radial and non-radial modes. Next, combining the lifetimes and inertias with a stochastic excitation model gives the amplitudes of the modes. We can now directly compare theoretical and observed linewidths and amplitudes of mixed-modes to obtain new constraints on our theoretical models.

AB - Thanks to the precision of Kepler observations, [3] were able to measure the linewidth and amplitude of individual modes (including mixed modes) in several subgiant power spectra. We perform a forward modelling of a Kepler subgiant based on surface properties and observed frequencies. Non-adiabatic computations including a time- dependent treatment of convection give the lifetimes of radial and non-radial modes. Next, combining the lifetimes and inertias with a stochastic excitation model gives the amplitudes of the modes. We can now directly compare theoretical and observed linewidths and amplitudes of mixed-modes to obtain new constraints on our theoretical models.

UR - http://www.scopus.com/inward/record.url?scp=84960193476&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84960193476&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201510106028

DO - 10.1051/epjconf/201510106028

M3 - Conference article

AN - SCOPUS:84960193476

VL - 101

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

SN - 2101-6275

M1 - 06028

T2 - CoRoT Symposium 3, Kepler KASC-7 Joint Meeting on Space Photometry Revolution

Y2 - 6 July 2014 through 11 July 2014

ER -