INVESTIGADORES
MAUAS Pablo Jacobo David
congresos y reuniones científicas
Título:
Helium Line Formation During the Decay Phase of a Small Two-Ribbon Flare
Autor/es:
ANDRETTA, V.; MAUAS, P. J. D.; FALCHI, A.; TERIACA, L.
Lugar:
Giardini Naxos, Sicily, Italy
Reunión:
Conferencia; SOHO-17. 10 Years of SOHO and Beyond; 2006
Institución organizadora:
European Space Agency
Resumen:
During a coordinated campaign (SOHO JOP 139) whichtook place in May 2001, a small C-class flare was observedboth with SOHO instruments and with the DunnSolar Telescope of the National Solar Observatory atSacramento Peak. Data for helium line formation in theactive region prior to the flare have been analyzed anddiscussed by Mauas et al. (2005), while some dynamicalaspects of earlier phases of the flare have been discussedby Teriaca et al. (2003). Here we show results of theanalysis extended to the decaying phase of the flare. Inaddition to the construction of semiempirical models ofthe chromosphere and low transition region, we discussalso the possibility of obtaining an estimate of ambientabundance of helium during a flare.