348 research outputs found
Complex asteroseismology of the Slowly Pulsating B-type star HD74560
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, . For two of them, found also in spectroscopic data, we are able
to derived the empirical values of the complex nonadiabatic parameter . 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 Cephei stars.Comment: 4 pages, 2 figures, conference proceedings, to appear in ASS
High spin particles with spin-mass coupling
The classical and quantum model of high spin particles is proposed and
analyzed in this paper. The covariant quantization leads to the spectrum of the
particles with the masses correlated with their spins. The particles (and
anti-particles) appear to be orphaned as their potential anti-particle partners
are of different mass.Comment: 11 pages, 1 figure, the paper accepted for publication in Advances in
Applied Clifford Algebr
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