Title: Asteroseismology of HD 129929: core overshooting and nonrigid rotation
Authors: Aerts, Conny ×
Thoul, A
Daszynska, J
Scuflaire, R
Waelkens, Christoffel
Dupret, M A
Niemczura, E
Noels, A #
Issue Date: 20-May-2003
Publisher: Amer assoc advancement science
Series Title: Science vol:300 issue:5627 pages:1926-1928
Abstract: We have gathered and analyzed 1493 high-quality multicolor Geneva photometric data taken over 21 years of the B3Vstar HD 129929. We detect six frequencies, among which appear the effects of rotational splitting with a spacing of approximately 0.0121 cycles per day, which implies that the star rotates very slowly. A nonadiabatic analysis of the oscillations allows us to constrain the metallicity of the star to Z epsilon [0.017,0.022], which agrees with a similar range derived from spectroscopic data. We provide evidence for the occurrence of core convective overshooting in the star, with alpha(ov) = 0.10 +/- 0.05, and we rule out rigid rotation.
ISSN: 0036-8075
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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