Title: Time-dependent convection seismic study of five gamma Doradus stars
Authors: Dupret, MA
Grigahcene, A
Garrido, R
De Ridder, Joris
Scuflaire, R
Gabriel, M
Kurucz, RL
Stutz, C
Nendwich, J #
Issue Date: Jul-2005
Publisher: Blackwell publishing
Series Title: Monthly notices of the royal astronomical society vol:360 issue:3 pages:1143-1152
Abstract: We apply for the first time the time-dependent convection (TDC) treatment of Gabriel and Grigahcene et al. to the photometric mode identification in gamma Doradus (gamma Dor) stars. We consider the influence of this treatment on the theoretical amplitude ratios and phase differences. Comparison with the observed amplitudes and phases of the stars gamma Dor, 9 Aurigae, HD 207223 = HR 8330, HD 12901 and 48501 is presented and enables us to identify the degree l of the pulsation modes for four of them. We also determine the mode stability for different models of these stars. We show that our TDC models agree better with observations than with frozen convection models. Finally, we compare the results obtained with different values of the mixing-length parameter alpha.
ISSN: 0035-8711
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
# (joint) last author

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