Doppler and Zeeman Doppler Imaging of Stars

Doppler and Zeeman Doppler Imaging of Stars
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恒星的多普勒和塞曼多普勒成像

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发表时间:
2016
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影响因子:
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通讯作者:
O. Kochukhov
O. Kochukhov
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作者:
O. Kochukhov

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在这一章中,我们讨论的问题重建二维恒星表面地图的光谱线的强度和/或偏振剖面的变化。首先,我们概述了标量多普勒成像问题的主要原则与恢复的化学斑点,温度或亮度的强度谱的地图。在介绍了这种遥感方法的物理和数学基础之后,我们回顾了它在绘制早期型化学奇异星和晚期型活动星的不同类型的斑点以及早期型恒星的非径向脉动中的应用。我们还讨论了扩展多普勒成像的问题,从分光偏振观测和审查应用程序的塞曼多普勒成像技术在恒星磁性研究的背景下恢复恒星磁场的矢量分布。
In this chapter we discuss the problem of reconstructing two-dimensional stellar surface maps from the variability of intensity and/or polarisation profiles of spectral lines. We start by outlining the main principles of the scalar Doppler imaging problem concerned with recovering maps of chemical spots, temperature or brightness from the intensity spectra. After presenting the physical and mathematical foundations of this remote sensing method, we review its applications to mapping different types of spots in early-type chemically peculiar and late-type active stars, and non-radial pulsations in early-type stars. We also discuss an extension of Doppler imaging to the problem of recovering vector distributions of stellar magnetic fields from spectropolarimetric observations and review applications of this Zeeman Doppler imaging technique in the context of stellar magnetism studies.
具有 Hg 和 Mn 特性的晚期 B 型恒星的化学表面不均匀性 - I HD 11753 中短期和长期尺度的光点演化
DOI: 10.1051/0004-6361/201220951
发表时间: 2013
影响因子: 6.5
作者:
H. Korhonen;J. F. González;M. Briquet;M. Flores Soriano;S. Hubrig;I. Savanov;T. Hackman;I. Ilyin;E. Eulaers;W. Pessemier
通讯作者: W. Pessemier