期刊
ASTROPHYSICS AND SPACE SCIENCE
卷 291, 期 3-4, 页码 359-366出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/B:ASTR.0000044344.92680.b8
关键词
diffusion; abundances; oscillations; horizontal-branch; subdwarfs
We present a FUSE abundance analysis of EC14026 stars. We compare the abundances of heavy elements in the atmospheres of EC14026 stars to non-pulsating stars with similar atmospheric parameters, and investigate whether weak stellar winds could explain the coexistence of variable and non-variable sdB stars in the log g-T-eff diagram. We also present preliminary results on time-dependent diffusion calculations of iron in presence of radiative levitation and mass loss, and show how weak stellar winds can affect the diffusive equilibrium between gravitational settling and radiative support.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据