Asteroseismology of the β Cep star HD 129929 -: I.: Observations, oscillation frequencies and stellar parameters

被引：36

作者：

Aerts, C

Waelkens, C

Daszynska-Daszkiewicz, J

Dupret, MA

Thoul, A

Scuflaire, R

Uytterhoeven, K

Niemczura, E

Noels, A

机构：

[1] Univ Liege, Inst Astrophys & Geophys, B-4000 Liege, Belgium

[2] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium

[3] Univ Wroclaw, Astron Inst, PL-51622 Wroclaw, Poland

[4] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain

来源：

ASTRONOMY & ASTROPHYSICS | 2004年 / 415卷 / 01期

关键词：

stars : oscillations; stars : variables : general; stars : individual : HD 129929;

D O I：

10.1051/0004-6361:20034142

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：241 / 249

页数：9

共 25 条

[1] Asteroseismology of HD 129929: Core overshooting and nonrigid rotation [J].