000003337 001__ 3337
000003337 005__ 20180109144914.0
000003337 037__ $$aCTALK-2018-0002
000003337 100__ $$aWauters, Laurence
000003337 245__ $$aEruptive phenomena observed in LYRA lyman-alpha 
000003337 260__ $$c2017
000003337 269__ $$c2017-08-22
000003337 500__ $$aMarie Dominique presented this talk, Laurence Wauters was under seak leave
000003337 520__ $$aLyman-alpha (121.6 nm) is an optical thick line mostly formed in the chromosphere. Although one of the strongest lines of the solar spectrum, there are very few reports of solar flare signatures in Lyman-alpha and the few observations available differ significantly in shape, time duration and amplitude. Consequently, the fraction of non-thermal energy deposited during solar flares in this wavelength is still subject to discussion. The LYRA experiment is a radiometer on board the PROBA2 spacecraft launched in 2009. LYRA is composed of three identical units (one nominal, two backups), which each includes four distinct broadband channels, among which one covering Lyman-alpha. Despite the fact that the LYRA Lyman-alpha signal has degraded quickly at the beginning of the mission in the nominal channel, it observed about ten flares. Additionally, one more flare was observed in one of the backup channels. In this talk, we will analyse this particular flare profile and compare it to other instruments including Goes-15, EVE/MEGS-P, LYRA Zirconium channel.
000003337 536__ $$aPROBA2/$$cPROBA2/$$fPROBA2
000003337 594__ $$aNO
000003337 6531_ $$aLYRA
000003337 6531_ $$aFlare
000003337 6531_ $$aFilament eruption
000003337 700__ $$aDominique, Marie 
000003337 700__ $$aDammasch, Ingolf 
000003337 700__ $$aKretzschmar, Matthieu
000003337 773__ $$t48th SPD meeting, Portland
000003337 8560_ $$flaurence.wauters@observatoire.be
000003337 85642 $$ahttp://adsabs.harvard.edu/abs/2017SPD....4810004W
000003337 906__ $$aContributed
000003337 980__ $$aCTALKCONT