The present study originates in the framework of a Flare Warning Campaign carried on at the INAF Catania Astrophysical Observatory (OACt) and aimed at getting the capability of predicting the occurrence of the potentially most dangerous flares. The analysis is based on sunspot-groups data collected at OACt and on M and X flare data collected by GOES 8 during the period 1998 - 2002. Evidence is found that: i) M and X flares tend to replicate in a small sample of spotgroups (≈ 10% total); ii) the spotgroups hosting flares live significantly longer than the others. The predictive value of these findings is stressed....
The impact of the spotgroup age and lifetime on their capability of hosting M and X flares
Zuccarello, F.Ultimo
Methodology
2003-01-01
Abstract
The present study originates in the framework of a Flare Warning Campaign carried on at the INAF Catania Astrophysical Observatory (OACt) and aimed at getting the capability of predicting the occurrence of the potentially most dangerous flares. The analysis is based on sunspot-groups data collected at OACt and on M and X flare data collected by GOES 8 during the period 1998 - 2002. Evidence is found that: i) M and X flares tend to replicate in a small sample of spotgroups (≈ 10% total); ii) the spotgroups hosting flares live significantly longer than the others. The predictive value of these findings is stressed....File in questo prodotto:
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