Solar hydrogen-Lyman continuum observations with SOHO/SUMER
Solar hydrogen-Lyman continuum observations with SOHO/SUMER
复制标题
使用 SOHO/SUMER 进行太阳氢-莱曼连续谱观测
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
J. Vial
中科院分区:
文献类型:
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作者:
S. Parenti;P. Lemaire;J. Vial
In this work we analyze the emission of the H Lyman continuum (HI LyC) in the Quiet Sun (QS) and a solar prominence, in order to derive information on the temperature of the emitting plasma. We used the spectral atlas obtained with SOHO/SUMER detector A in 1999 (Parenti et al. 2005, A&A, 443, 679). The high spectral resolution of this instrument allows a good selection of the continuum, free from emission lines. However, in the HI LyC wavelength domain, the data suffer from large radiometric uncertainties, which lead us to use detector B as a reference. We obtained electron temperatures of 8281 K ± 280 K and 7564 K ± 230 K in two separate parts of the prominence.