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2 results

Pressure Broadening of Spectral Lines
  • The Theory of Line Shape in Atmospheric Physics
  • Peter Joseph Rayer
  • Published online:
    26 June 2020
    Print publication:
    06 August 2020
  • Presenting the quantum mechanical theory of pressure broadening and its application in atmospheric science, this is a unique treatment of the topic and a useful resource for researchers and professionals alike. Rayer proceeds from molecular processes to broad scale atmospheric physics to bring together both sides of the problem of remote sensing. Explanations of the relationship between a series of increasingly general theoretical papers are provided and all key expressions are fully derived to provide a firm understanding of assumptions made as the subject evolved. This book will help the atmospheric physicist to cross into the quantum world and appreciate the more theoretical aspects of line shape and its importance to their own work.

  • Mapping prominence plasma parameters from eclipse observations

  • Sonja Jejčič, Petr Heinzel, Maciej Zapiór, Miloslav Druckmüller, Stanislav Gunár, Pavel Kotrč
  • Journal:
    Proceedings of the International Astronomical Union / Volume 8 / Issue S300 / June 2013
    Published online by Cambridge University Press:
    06 January 2014, pp. 420-421
    Print publication:
    June 2013
    • Article
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  • Using the eclipse observations, we construct the maps of quiescent prominence temperatures, electron densities, pressures and geometrical thicknesses. For this we use the RGB signal of prominence visible-light emission detected during the total solar eclipse on August 1, 2008 in Mongolia, and quasi-simultaneous Hα spectra taken at Ondřejov observatory. The method of disentangling the electron density and effective geometrical thickness was described by Jejčič & Heinzel (2009) and is used here for the first time to analyse the spatial variations of various prominence parameters.