Asteroseismology of the β Cephei star ν Eridani: interpretation and applications of the oscillation spectrum

@article{Pamyatnykh2004AsteroseismologyOT,
  title={Asteroseismology of the $\beta$ Cephei star $\nu$ Eridani: interpretation and applications of the oscillation spectrum},
  author={Alexey A. Pamyatnykh and Gerald Handler and Wojciech A. Dziembowski},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2004},
  volume={350},
  pages={1022-1028}
}
The oscillation spectrum of v Eri is the richest known for any variable of the β Cephei type. We interpret the spectrum in terms of normal mode excitation and construct seismic models of the star. The frequency data combined with data on mean colours set the upper limit on the extent of overshooting from the convective core. We use data on rotational splitting of two dipole (l = 1) modes (g 1 and p 1 ) to infer properties of the internal rotation rate. Adopting a plausible hypothesis of nearly… 

Figures and Tables from this paper

SEISMOLOGY OF β CEPHEI STARS: DIFFERENTIALLY ROTATING MODELS FOR INTERPRETING THE OSCILLATION SPECTRUM OF ν ERIDANI
A method for the asteroseismic analysis of β Cephei stars is presented and applied to the star ν Eridani. The method is based on the analysis of rotational splittings and their asymmetries using
Interpretation of the BRITE oscillation data of the hybrid pulsator ν Eridani: a call for the modification of stellar opacities
The analysis of the BRITE oscillation spectrum of the main sequence early B-type star $\nu$ Eridani is presented. Only models with the modified mean opacity profile can account for the observed
Seismic modelling of the β Cephei star HD 180642 (V1449 Aquilae)
Context. We present modelling of the β Cep star HD 180642 based on its observational properties deduced from CoRoT and ground-based photometry as well as from time-resolved spectroscopy. Aims. We
An asteroseismic study of the β Cephei star β Canis Majoris
Aims. We present the results of a detailed analysis of 452 ground-based, high-resolution high S/N spectroscopic measurements spread over 4.5 years for β Canis Majoris with the aim of determining the
Asteroseismology of the β Cephei star ν Eridani: massive exploration of standard and non-standard stellar models to fit the oscillation data
We present the results of a detailed seismic modelling of the Cephei star Eridani with the Li‘ ege evolution and pulsation codes. We selected four clearly detected, well-identified and independent
An asteroseismic study of the β Cephei star θ Ophiuchi: constraints on global stellar parameters and core overshooting
We present a seismic study of the β Cephei star θ Ophiuchi. Our analysis is based on the observation of one radial mode, one rotationally split � = 1 triplet and three components of a rotationally
The two hybrid B-type pulsators: ν Eridani and 12 Lacertae
The rich oscillation spectra determined for the two stars, ν Eridani and 12 Lacertae, present an interesting challenge to stellar modelling. The stars are hybrid objects showing not only a number of
Pulsation frequency distribution in δ Scuti stars
We study the frequency distributions ofScuti stars observed by the Kepler satel- lite in short-cadence mode. To minimize errors in the estimated stellar parameters, we divided the instability strip
Constraints on opacities from complex asteroseismology of B-type pulsators: the β Cephei star θ Ophiuchi
We present results of a comprehensive asteroseismic modelling of the β Cephei variable θ Ophiuchi. We call these studies complex asteroseismology because our goal is to reproduce both pulsational
Multiperiodicity in the large-amplitude rapidly-rotating beta Cephei star HD 203664
Aims. We made a seismic study of the young massive β Cephei star HD 203664 with the goal of constraining its interior structure. Methods. Our study is based on a time series of 328 new Geneva
...
...