X級(jí)質(zhì)子耀斑的特征研究
發(fā)布時(shí)間:2018-04-30 15:15
本文選題:質(zhì)子耀斑 + 非質(zhì)子耀斑; 參考:《空間科學(xué)學(xué)報(bào)》2017年03期
【摘要】:為了更加準(zhǔn)確地判斷X級(jí)耀斑是否引發(fā)質(zhì)子事件,對(duì)X級(jí)質(zhì)子耀斑和非質(zhì)子耀斑的耀斑積分通量、源區(qū)、CME速度、CME角寬度、背景太陽風(fēng)速度及背景X射線通量的分布進(jìn)行了統(tǒng)計(jì)研究.發(fā)現(xiàn)非質(zhì)子耀斑和質(zhì)子耀斑的積分通量、經(jīng)度、CME速度和CME角寬度具有明顯不同的分布.非質(zhì)子耀斑大多集中在東部,耀斑積分通量小于0.3J·m~(-2),CME速度小于1300km·s~(-1)的區(qū)域內(nèi);質(zhì)子耀斑大多集中在中部或西部,耀斑積分通量大于0.3 J·m~(-2),CME速度大于1300 km·s~(-1)的區(qū)域內(nèi).質(zhì)子耀斑伴隨的CME角寬度主要集中在360°,非質(zhì)子耀斑的CME角寬度分布則相對(duì)分散.兩類耀斑的背景太陽風(fēng)速度和背景X射線通量分布差別不大.利用兩類耀斑各個(gè)參量分布上的差異,有望提高X級(jí)耀斑預(yù)報(bào)的準(zhǔn)確率.
[Abstract]:In order to determine more accurately whether X class flares cause proton events, the integral flux of X class proton flares and non-proton flares, the source region CME velocity and the width of CME angle are calculated. The distribution of background solar wind velocity and background X ray flux is studied statistically. It is found that the integral flux, longitude velocity and CME angular width of non-proton flare and proton flare have different distributions. Most of the non-proton flares are concentrated in the east, the integral flux of the flares is less than 0.3 J / m ~ (-1) and the velocity of the proton flare is more than 1300 km / s ~ (-1) in the central or western part of the region, and the integral flux of the flare is more than 1300 km / s ~ (-1). The CME angular width of proton flares is mainly concentrated at 360 擄, while the CME angular width distribution of non-proton flares is relatively dispersed. The velocity of background solar wind and the distribution of background X ray flux of the two flares are not different. It is expected to improve the accuracy of X class flares prediction by using the differences in the distribution of each parameter between the two flares.
【作者單位】: 中國科學(xué)院國家空間科學(xué)中心;中國科學(xué)院研究生院;
【基金】:國家自然科學(xué)基金項(xiàng)目(11503063) 國家重點(diǎn)基礎(chǔ)研究計(jì)劃項(xiàng)目(2012CB825606)共同資助
【分類號(hào)】:P353
【相似文獻(xiàn)】
相關(guān)期刊論文 前3條
1 王家龍;太陽質(zhì)子耀斑的一個(gè)統(tǒng)計(jì)性質(zhì)[J];空間科學(xué)學(xué)報(bào);1993年04期
2 林華安,王世金;太陽質(zhì)子耀斑X射線輻射特征及質(zhì)子事件警報(bào)[J];空間科學(xué)學(xué)報(bào);1993年02期
3 ;[J];;年期
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