Title: Asteroseismology of the beta Cep star HD 129929 - I. Observations, oscillation frequencies and stellar parameters
Authors: Aerts, Conny
Waelkens, Christoffel
Daszynska-Daszkiewicz, J
Dupret, MA
Thoul, A
Scuflaire, R
Uytterhoeven, K
Niemczura, E
Noels, A #
Issue Date: Feb-2004
Publisher: E d p sciences
Series Title: Astronomy & astrophysics vol:415 issue:1 pages:241-249
Abstract: We have gathered and analysed a timeseries of 1493 high-quality multicolour Geneva photometric data of the B3V beta Cep star HD 129929. The dataset has a time base of 21.2 years. The occurrence of a beating phenomenon is evident from the data. We find evidence for the presence of at least six frequencies, among which we see components of two frequency multiplets with an average spacing of similar to0.0121 cd(-1) which points towards very slow rotation. This result is in agreement with new spectroscopic data of the star and also with previously taken UV spectra. We provide the amplitudes of the six frequencies in all seven photometric filters. The metal content of the star is Z = 0.018 +/- 0.004. All these observational results will be used to perform detailed seismic modelling of this massive star in a subsequent paper.
ISSN: 0004-6361
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
# (joint) last author

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