A Gamma mixture model of overshooting plume lengths in 2D simulations of six Cepheid models yields a calibrated diffusion coefficient and a tentative relationship between overshooting ratio and shell depth and width.
Testing stellar opacities using asteroseismology
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We present what constraints on opacities can be derived from the analysis of stellar pulsations of BA-type main-sequence stars. This analysis consists of the construction of complex seismic models which reproduce the observed frequencies as well as the bolometric flux amplitude extracted from the multi-colour photometric variations. Stellar seismology, i.e., {\it asteroseismology}, is a relatively young branch of astrophysics and, currently, provides the most accurate test of the theory of internal structure and evolution. We show that opacities under stellar conditions need to be modified at the depth of temperatures $T=110~000-290~000$\,K. The revision of opacity data is of great importance because they are crucial for all branches of astrophysics.
fields
astro-ph.SR 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Convective shells in the interior of Cepheid variable stars: overshooting models based on hydrodynamic simulations
A Gamma mixture model of overshooting plume lengths in 2D simulations of six Cepheid models yields a calibrated diffusion coefficient and a tentative relationship between overshooting ratio and shell depth and width.