NLTE diagnostics of solar prominences using hydrogen and helium lines

Labrosse, N. and Gouttebroze, P. (2002) NLTE diagnostics of solar prominences using hydrogen and helium lines. Il nuovo cimento C, 25 (5\6). pp. 817-822. ISSN 1826-9885

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This contribution aims to present non-local thermodynamic Equilibrium (NLTE) modeling of hydrogen and helium spectra in quiescent prominences. We investigate the formation of the whole helium spectrum—He I and He II—and hydrogen spectrum within the frame of one-dimensional, isothermal and isobaric static slab models. After some explanations on the kind of NLTE modeling used here, we shall focus our attention to the study of neutral helium triplet lines to see their behaviour with plasma parameters variations and how it compares with published observations.

Item Type: Article
Additional Information: Paper presented at the International Meeting on THEMIS and the New Frontiers of Solar Atmosphere Dynamics, Rome, Italy, March 19-21, 2001.
Uncontrolled Keywords: Prominences
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia > 551.5 Meteorologia (Classificare qui l'atmosfera) (Classificare la previsione e le previsioni di specifici fenomeni meteorologici in 551.64; classificare la Micrometeorologia in 551.66) > 551.52 Termodinamica, interazioni atmosferiche con la superficie terrestre, temperature, radiazioni > 551.527 Radiazioni (per fenomeni ottici, vedi 551.565) > 551.5271 Radiazione solare
Depositing User: Marina Spanti
Date Deposited: 12 Mar 2020 17:27
Last Modified: 12 Mar 2020 17:27

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