Solar hydrogen-Lyman continuum observations with SOHO/SUMER

Solar hydrogen-Lyman continuum observations with SOHO/SUMER
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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
J. Vial
中科院分区:
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文献类型:
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作者:
S. Parenti;P. Lemaire;J. Vial

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在这项工作中,我们分析的H莱曼连续(HI LyC)在安静的太阳(QS)和日珥的发射,以获得信息的温度发射等离子体。我们使用1999年SOHO/SUMER探测器A获得的光谱图谱(帕伦蒂等人,2005,A&A,443,679)。该仪器的高光谱分辨率允许很好地选择连续谱,不受发射线的影响。然而,在HI LyC波长域中,数据遭受大的辐射不确定性,这导致我们使用探测器B作为参考。我们在日珥的两个不同部分获得了8281 K ± 280 K和7564 K ± 230 K的电子温度。
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.