Tuesday, April 17, 2012

1204.3152 (Przemysław Walczak et al.)

Complex asteroseismology of the Slowly Pulsating B-type star HD74560    [PDF]

Przemysław Walczak, Wojciech Szewczuk, Jadwiga Daszyńska-Daszkiewicz
We present the results of complex seismic modelling of the Slowly Pulsating B-type star HD74560. The star pulsates in five frequencies detected in photometric observations. For all these frequencies, we identify the mode degree, $\ell$. For two of them, found also in spectroscopic data, we are able to derived the empirical values of the complex nonadiabatic parameter $f$. We test effects of chemical composition and opacity data. Our results show that the properties of seismic models of SPB stars differ significantly from those of the more massive $\beta$ Cephei stars.
View original: http://arxiv.org/abs/1204.3152

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