000005756 001__ 5756
000005756 005__ 20220405154515.0
000005756 0247_ $$2DOI$$a10.1007/s11207-022-01963-0
000005756 037__ $$aSCART-2022-0055
000005756 100__ $$aWauters, LAurence
000005756 245__ $$aObservation of a Flare and Filament Eruption in Lyman-α on 8 September 2011 by the PRoject for OnBoard Autonomy/Large Yield Radiometer (PROBA2/LYRA)
000005756 260__ $$c2022
000005756 520__ $$aThe Large Yield Radiometer (LYRA) instrument onboard the PRoject for OnBoard Autonomy (PROBA2) observes the solar irradiance in four channels in the UV–EUV. One of these channels is centered around the hydrogen line at 121.6 nm. The solar Lyman-α emission line is an optically thick line mostly formed in the chromosphere. Although it is one of the strongest lines of the solar spectrum, only a limited number of instruments provided observations of solar flares in Lyman-α, and those observations differ significantly in shape, durations, and amplitude. We focus on an event that happened on 8 September 2011 (SOL2011- 09-08T15:46). This event, an M6.7 flare, was associated with a filament eruption that happened during the decaying phase of the flare. Most of the irradiance fluctuations observed in the Lyman-α time series are synchronized with nonthermal emission fluctuations, as is predicted by flare models. However, there is a late-phase peak in Lyman-α observations that rather correlates with the timing of the filament eruption. We demonstrate that the eruption of the filament is at the origin of this peak.
000005756 536__ $$aESA/$$cBELSPO - PRODEX Program/$$fBELSPO - PRODEX Program
000005756 594__ $$aNO
000005756 6531_ $$aIrradiance
000005756 6531_ $$aLyman-α
000005756 6531_ $$aFlare
000005756 6531_ $$aFilament eruption
000005756 700__ $$aDominique, Marie
000005756 700__ $$aMilligan, Ryan
000005756 700__ $$aDammasch, I.E Ingolf
000005756 700__ $$aKretzschmar, Matthieu
000005756 700__ $$aMachol, Janet
000005756 773__ $$n36$$pSolar Physics$$v297$$y2022
000005756 8560_ $$flaurence.wauters@observatoire.be
000005756 85642 $$ahttps://doi.org/10.1007/s11207-022-01963-0
000005756 8564_ $$s1902713$$uhttp://publi2-as.oma.be/record/5756/files/Wauters2022_Article_ObservationOfAFlareAndFilament.pdf
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000005756 905__ $$apublished in
000005756 980__ $$aREFERD