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.
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2015.
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.
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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 -