质子耀斑的日面分布特征

DISTRIBUTIVE CHARACTERISTICS OF THE PROTON FLARES ON SOLAR DISK

在２２太阳活动周中，日面上有三个较强的质子活动复活体，它们爆发峰值流量≥１００ｐｆｕ和≥１０００ｐｆｕ的质子耀斑各占同类耀斑总数的７０．４％和８３．３％。活动复活体分别位于北纬２６°─３５°和南纬２０°─２９°纬度带上，由于它们周期性（１─２．６年）地再现，从而形成了日面质子耀斑的活动经度和纬度明显集中趋势。

Active longitude and latitude of solar proton flares in 19th-22th four solar active cycles have been studied in this paper.The results indicate that active longitude and latitude of the proton flares have obviously concentrating tendency.In 22th solar activity cycle,there were three stronger active reviviscent bodies of the proton flares.The proton flares with peak fluxes ≥100pfu and ≥ 1000pfu produced by these reviviscent bodies were about 70.7% and 83.3% of those on the solar disk.Active reviviscent bodies lay in two latitude bands,northern latitude 26°-35°and southern latitude 19°-27°.Due to the periodic revivifications(the period are about 1-2.6 years) of active reviviscent bodies,the proton flares on the solar disk show obvious concen tration of active longitude and latitude