Solar Physics

, Volume 288, Issue 1, pp 105–116 | Cite as

Temperature of Solar Prominences Obtained with the Fast Imaging Solar Spectrograph on the 1.6 m New Solar Telescope at the Big Bear Solar Observatory

  • Hyungmin Park
  • Jongchul Chae
  • Donguk Song
  • Ram Ajor Maurya
  • Heesu Yang
  • Young-Deuk Park
  • Bi-Ho Jang
  • Jakyoung Nah
  • Kyung-Suk Cho
  • Yeon-Han Kim
  • Kwangsu Ahn
  • Wenda Cao
  • Philip R. Goode
Initial Results from FISS

Abstract

We observed solar prominences with the Fast Imaging Solar Spectrograph (FISS) at the Big Bear Solar Observatory on 30 June 2010 and 15 August 2011. To determine the temperature of the prominence material, we applied a nonlinear least-squares fitting of the radiative transfer model. From the Doppler broadening of the Hα and Ca ii lines, we determined the temperature and nonthermal velocity separately. The ranges of temperature and nonthermal velocity were 4000 – 20 000 K and 4 – 11 km s−1. We also found that the temperature varied much from point to point within one prominence.

Keywords

Chromosphere, quiet Heating, chromospheric Prominences, quiescent Spectral line, broadening 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Hyungmin Park
    • 1
  • Jongchul Chae
    • 1
  • Donguk Song
    • 1
  • Ram Ajor Maurya
    • 1
  • Heesu Yang
    • 1
  • Young-Deuk Park
    • 2
  • Bi-Ho Jang
    • 2
  • Jakyoung Nah
    • 2
  • Kyung-Suk Cho
    • 2
  • Yeon-Han Kim
    • 2
  • Kwangsu Ahn
    • 3
  • Wenda Cao
    • 3
  • Philip R. Goode
    • 3
  1. 1.Astronomy Program, Department of Physics and AstronomySeoul National UniversitySeoulRepublic of Korea
  2. 2.Korea Astronomy and Space Science InstituteDaejeonRepublic of Korea
  3. 3.Big Bear Solar ObservatoryNew Jersey Institute of TechnologyBig Bear CityUSA

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