第23周太陽(yáng)高能粒子特性分析
發(fā)布時(shí)間：2018-08-04 10:37
【摘要】：第23太陽(yáng)周是距今最近的已經(jīng)結(jié)束的太陽(yáng)活動(dòng)周,該周的太陽(yáng)高能粒子(SEP)及相關(guān)現(xiàn)象有比較豐富的觀測(cè),通過(guò)對(duì)這些資料的分析,可以幫助我們更好地理解太陽(yáng)高能粒子的加速與傳播等現(xiàn)象,也可以幫助我們?nèi)ニ伎己头治龅?4周的太陽(yáng)高能粒子現(xiàn)象。目前已有很多關(guān)于高能粒子及有關(guān)現(xiàn)象的研究,但是,仍有許多現(xiàn)象未進(jìn)行系統(tǒng)和深入的研究,如太陽(yáng)高能粒子的日冕逃逸時(shí)間的系統(tǒng)分析,太陽(yáng)高能粒子逃逸時(shí)CME和耀斑所處的狀態(tài)等。 日冕物質(zhì)拋射(CME)和耀斑都可以導(dǎo)致產(chǎn)生太陽(yáng)高能粒子事件,其中CME爆發(fā)時(shí)可能伴有Ⅱ型射電暴,而太陽(yáng)耀斑爆發(fā)時(shí)通常伴有Ⅲ型暴。本文將對(duì)太陽(yáng)高能粒子事件與日冕物質(zhì)拋射、有關(guān)的耀斑以及米波和十米百米波(DH)Ⅱ型射電暴進(jìn)行綜合分析,以了解太陽(yáng)高能粒子事件爆發(fā)時(shí)相關(guān)的太陽(yáng)活動(dòng)情況。 本文研究認(rèn)為,(1)伴隨SEP的CME有更大概率伴隨米波和DH波Ⅱ型射電暴。(2)伴有太陽(yáng)高能粒子事件的CME速度比不伴隨太陽(yáng)高能粒子的CME的速度要大。(3)米波、DH波段Ⅱ型暴爆發(fā)、SEP粒子逃逸時(shí)間有明顯的時(shí)序關(guān)系。(4)米波Ⅱ型暴的產(chǎn)生的起始高度一般在3個(gè)太陽(yáng)半徑(Rs)以內(nèi),DH波段Ⅱ型暴爆發(fā)的起始位置一般在8Rs以內(nèi)。其中,有SEP伴隨的米波Ⅱ型暴爆發(fā)高度平均值比沒(méi)有SEP的低0.1Rs左右,有約33.3%的Ⅱ型暴是由CME的邊緣驅(qū)動(dòng)的激波產(chǎn)生的,無(wú)SEP的CME中事件,35.0%的Ⅱ型暴是由CME的邊緣驅(qū)動(dòng)的激波產(chǎn)生的。DH波段起始高度平均比沒(méi)有SEP的高0.3Rs左右。(5)高能粒子的源區(qū)大多位于日面經(jīng)度E20°以西,粒子釋放的高度一般低于15Rs。隨著經(jīng)度的變化,太陽(yáng)高能粒子在傳播的路徑、逃逸時(shí)間、逃逸的位置高度隨經(jīng)度分布沒(méi)有顯著變化。 由上述結(jié)果,我們分析認(rèn)為SEP的爆發(fā)可能與以下條件有關(guān)：(1)活動(dòng)區(qū)產(chǎn)生多次CME,其產(chǎn)生SEP的概率比較大。當(dāng)耀斑、米和DH波段Ⅱ型暴都出現(xiàn)時(shí),有更高的概率產(chǎn)生SEP,但SEP不影響Ⅱ型暴從米波到DH波頻漂的速度。(2)CME伴隨SEP的概率與速度、活動(dòng)區(qū)經(jīng)度和CME的運(yùn)動(dòng)方式有關(guān)。CME速度越大,伴隨SEP的概率越大。由于太陽(yáng)高能粒子要沿磁力線傳播,因此,太陽(yáng)西半球CME產(chǎn)生的SEP比東半球產(chǎn)生的SEP更容易被地球附近的衛(wèi)星觀測(cè)到。在LASCO觀測(cè)范圍內(nèi)作非勻速運(yùn)動(dòng)的CME產(chǎn)生SEP的概率比做勻速運(yùn)動(dòng)的CME更大,這些CME的平均速度比產(chǎn)生SEP且勻速運(yùn)動(dòng)的CME的速度大很多。(3)耀斑后4分鐘之內(nèi)觀測(cè)到米波Ⅱ型暴的CME事件伴隨SEP的概率比較大。(4)產(chǎn)生SEP的活動(dòng)區(qū)在DH波段Ⅱ型暴的爆發(fā)高度范圍的電子密度可能比沒(méi)有SEP產(chǎn)生的活動(dòng)區(qū)同高度的大。(5)CME速度越大,伴隨Ⅱ型暴的概率也越大,且在其前沿產(chǎn)生Ⅱ型暴的概率也越大。相對(duì)而言,在CME前沿激波產(chǎn)生的Ⅱ型暴有更大的概率伴隨SEP事件。CME邊緣產(chǎn)生的Ⅱ型暴伴隨SEP的概率則相對(duì)較小。
[Abstract]:The twenty-third solar week is the most recent solar week that has been completed. This week's solar energy particles (SEP) and related phenomena are more abundant. By analyzing these data, we can help us better understand the acceleration and propagation of high energy particles in the sun, and help us to think and analyze the twenty-fourth weeks too. There are many studies on high energy particles and related phenomena, but there are still many phenomena that have not been systematically and deeply studied, such as the system analysis of the solar energy particles' coronal escape time, the state of the CME and the flare when the solar energy particles escape.
Coronal mass ejection (CME) and flares can all lead to high energy particle events in the sun, in which CME eruptions may be accompanied by type II radio storms, while solar flares are usually accompanied by type III storms. This article will carry out the solar energetic particle events and coronal mass ejections, the related flares, and the rice and the ten meter wave (DH) type II radio storm. A comprehensive analysis is made to understand the solar activity associated with solar energetic particle events.
This study holds that (1) the CME with SEP is more likely to accompany Mi Bo and DH wave type II radio storms. (2) the velocity of CME accompanied by solar energetic particles is larger than that of the CME of the solar energetic particles. (3) Mi Bo, DH band type II burst and SEP particle escape time. (4) the emergence of Mi Bo type II storm The initial height is generally within 3 Solar radii (Rs), and the initial position of the DH band II type burst is generally within 8Rs. Among them, the height averages of the SEP accompanied by the type II burst are lower than 0.1Rs without SEP, and about 33.3% of the type II storms are generated by the excitation waves driven by the CME edge, no SEP in CME events, and 35% of the type II storm. The initial height of the.DH band generated by the shock wave driven by the edge of CME is about 0.3Rs higher than that of no SEP. (5) the source region of the high-energy particles is mostly located in the west of the daily longitude E20 degrees. The height of the particle release is generally lower than the 15Rs. with the longitude, and the height of the solar energy particles in the propagation path, escape time, and escape position is divided with the longitude. There was no significant change in the cloth.
From the above results, we think that the outbreak of SEP may be related to the following conditions: (1) the active region produces a number of CME, and the probability of producing SEP is larger. When the flare, rice and DH band II storm all appear, there is a higher probability to produce SEP, but SEP does not affect the velocity of the type II storm from the meter wave to the DH wave. (2) CME accompanying SEP's probability and speed The greater the.CME velocity associated with the movement of the active region and the movement of the CME, the greater the probability of the accompanying SEP. As the solar energy particles are propagating along the magnetic line of force, the SEP produced by the CME in the Western Hemisphere is more likely to be observed by the satellite near the earth than the SEP in the eastern hemisphere. In the LASCO observational range, the CME produced by the non uniform motion of the CME produces SEP. The rate of CME is greater than that of uniform motion. The average velocity of these CME is much greater than that of CME that produces SEP and uniform motion. (3) the probability of the CME event of the meter wave II storm within 4 minutes after the flare is larger than that of SEP. (4) the electron density of the active region of the DH band II type riot in the SEP is probably less than no SEP The greater the height of the active area is. (5) the greater the speed of (5), the greater the probability of the type II storm, and the greater the probability of producing type II storm in the front. Relatively, the probability of the type II storm generated by the CME front shock wave is relatively smaller than the probability of the type II storm accompanied by the SEP event on the edge of the SEP event.
【學(xué)位授予單位】：南京信息工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P182
本文編號(hào)：2163670
[Abstract]:The twenty-third solar week is the most recent solar week that has been completed. This week's solar energy particles (SEP) and related phenomena are more abundant. By analyzing these data, we can help us better understand the acceleration and propagation of high energy particles in the sun, and help us to think and analyze the twenty-fourth weeks too. There are many studies on high energy particles and related phenomena, but there are still many phenomena that have not been systematically and deeply studied, such as the system analysis of the solar energy particles' coronal escape time, the state of the CME and the flare when the solar energy particles escape.
Coronal mass ejection (CME) and flares can all lead to high energy particle events in the sun, in which CME eruptions may be accompanied by type II radio storms, while solar flares are usually accompanied by type III storms. This article will carry out the solar energetic particle events and coronal mass ejections, the related flares, and the rice and the ten meter wave (DH) type II radio storm. A comprehensive analysis is made to understand the solar activity associated with solar energetic particle events.
This study holds that (1) the CME with SEP is more likely to accompany Mi Bo and DH wave type II radio storms. (2) the velocity of CME accompanied by solar energetic particles is larger than that of the CME of the solar energetic particles. (3) Mi Bo, DH band type II burst and SEP particle escape time. (4) the emergence of Mi Bo type II storm The initial height is generally within 3 Solar radii (Rs), and the initial position of the DH band II type burst is generally within 8Rs. Among them, the height averages of the SEP accompanied by the type II burst are lower than 0.1Rs without SEP, and about 33.3% of the type II storms are generated by the excitation waves driven by the CME edge, no SEP in CME events, and 35% of the type II storm. The initial height of the.DH band generated by the shock wave driven by the edge of CME is about 0.3Rs higher than that of no SEP. (5) the source region of the high-energy particles is mostly located in the west of the daily longitude E20 degrees. The height of the particle release is generally lower than the 15Rs. with the longitude, and the height of the solar energy particles in the propagation path, escape time, and escape position is divided with the longitude. There was no significant change in the cloth.
From the above results, we think that the outbreak of SEP may be related to the following conditions: (1) the active region produces a number of CME, and the probability of producing SEP is larger. When the flare, rice and DH band II storm all appear, there is a higher probability to produce SEP, but SEP does not affect the velocity of the type II storm from the meter wave to the DH wave. (2) CME accompanying SEP's probability and speed The greater the.CME velocity associated with the movement of the active region and the movement of the CME, the greater the probability of the accompanying SEP. As the solar energy particles are propagating along the magnetic line of force, the SEP produced by the CME in the Western Hemisphere is more likely to be observed by the satellite near the earth than the SEP in the eastern hemisphere. In the LASCO observational range, the CME produced by the non uniform motion of the CME produces SEP. The rate of CME is greater than that of uniform motion. The average velocity of these CME is much greater than that of CME that produces SEP and uniform motion. (3) the probability of the CME event of the meter wave II storm within 4 minutes after the flare is larger than that of SEP. (4) the electron density of the active region of the DH band II type riot in the SEP is probably less than no SEP The greater the height of the active area is. (5) the greater the speed of (5), the greater the probability of the type II storm, and the greater the probability of producing type II storm in the front. Relatively, the probability of the type II storm generated by the CME front shock wave is relatively smaller than the probability of the type II storm accompanied by the SEP event on the edge of the SEP event.
【學(xué)位授予單位】：南京信息工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P182
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