arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1004.2363astro-ph.SR
收藏

B型主序星的光度振幅和相位:不准确性的来源

Photometric amplitudes and phases of B-type main sequence pulsators: sources of inaccuracy

Wojciech Szewczuk, Jadwiga Daszyńska-Daszkiewicz

摘要:

讨论了B型主序星光度振幅和相位理论值不确定性的所有可能来源。这些观测量是特别重要的,因为它们包含了关于模式几何和恒星物理的信息。在这里,我们研究的各种参数的影响来自线性非绝热振荡理论和恒星大气模型。特别是,我们显示的化学成分,不透明度的影响,第一次,NLTE大气的影响。

英文摘要:

We discuss all possible sources of uncertainties in theoretical values of the photometric amplitudes and phases of B-type main sequence pulsators. These observables are of particular importance because they contain information about the mode geometry as well as about stellar physics. Here, we study effects of various parameters coming both from theory of linear nonadiabatic oscillations and from models of stellar atmospheres. In particular, we show effects of chemical composition, opacities and, for the first time, effects of the NLTE atmospheres.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑