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Examples of spectroscopy of laboratory plasma with possible connection to astrophysical plasmas

机译:可能与天体等离子体连接的实验室等离子体光谱的示例

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摘要

In this paper several examples of line spectra from five different laboratory plasma sources are presented. Polarization Stark spectroscopy using hydrogen and helium lines is used for measuring electric field strength in the discharge. Doppler shifted and excessively broadened profiles are obtained showing presence of atoms with velocities close to those in the narrow line region of AGN. Radiation from a high energy, high density plasma source features very broad profiles used for determination of plasma density. Careful interpretation of spectra is needed in the conditions where several effects are present simultaneously: electric and magnetic field, Doppler effect and plasma inhomogeneity. Examples of line of sight influence on profile are also presented. Similarity between laboratory and astrophysical profiles open a possible field for experimental simulation of astrophysical plasmas.
机译:在本文中,给出了来自五个不同实验室等离子体源的线谱的几个示例。使用氢和氦线的极化斯塔克光谱法用于测量放电中的电场强度。获得多普勒频移和过度加宽的分布图,显示出存在速度接近于AGN窄线区域中的那些原子的原子。高能量,高密度等离子体源的辐射具有非常宽的轮廓,可用于确定等离子体密度。在同时存在多种效应的情况下,需要仔细解释光谱:电场和磁场,多普勒效应和等离子体不均匀性。还介绍了视线对轮廓的影响的示例。实验室和天体剖面之间的相似性为天体等离子体的实验模拟打开了一个可能的领域。

著录项

  • 来源
    《New astronomy reviews》 |2009年第10期|266-271|共6页
  • 作者单位

    Faculty of Physics, University of Belgrade, P.O. Box 368, Belgrade, Serbia Center for Science and Technology Development, Obilicev Venac 26, 11000 Belgrade, Serbia;

    Faculty of Physics, University of Belgrade, P.O. Box 368, Belgrade, Serbia Center for Science and Technology Development, Obilicev Venac 26, 11000 Belgrade, Serbia;

    Center for Science and Technology Development, Obilicev Venac 26, 11000 Belgrade, Serbia Faculty of Transport and Traffic Engineering, University of Belgrade, V. Stepe 305, Belgrade, Serbia;

    Faculty of Physics, University of Belgrade, P.O. Box 368, Belgrade, Serbia Center for Science and Technology Development, Obilicev Venac 26, 11000 Belgrade, Serbia;

    Faculty of Physics, University of Belgrade, P.O. Box 368, Belgrade, Serbia Center for Science and Technology Development, Obilicev Venac 26, 11000 Belgrade, Serbia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    plasma spectroscopy; laboratory plasma; experiment; doppler shift;

    机译:等离子体光谱实验室血浆实验;多普勒频移;

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