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题名: An Improved Initial Orbit Determination Method Based on Perturbed Unit Vector Method
作者: Mao, YX; Ma, JY; Ni, XQ; Xiang, J
刊名: INTERNATIONAL CONFERENCE ON ELECTRICAL AND CONTROL ENGINEERING (ICECE 2015)
出版日期: 2015
期号: 0, 页码:123-128
学科分类: 天文和天体物理
文章类型: 期刊论文
英文摘要: We considered 18 solar flares observed between June 2010 and July 2012, in which high energy >100 MeV gamma-emission was registered by the Large Area Telescope (LAT) aboard FermiGRO. We exainined for these y-events soft X-ray observations by GOES, hard X-ray observations by the Anti-Coincidence Shield of the SPectrometer aboard INTEGRAL (ACS SPI) and the Gamma-Ray burst Monitor (GBM) aboard FemiGRO. Hard X-ray and mu-decay gamma-ray emissions are used as tracers of electron and proton acceleration, respectively. Bursts of hard X-ray were observed by ACS SPI during impulsive phase of 13 events. Bursts of hard X-ray >100 keV were not found during time intervals, when prolonged hard y-emission was registered by LAT/FermiGRO. Those events showing prolonged high-energy gamma-ray emission not accompanied by >100 keV hard X-ray emission arc interpreted as an indication of either different acceleration processes for protons and electrons or as the presence of a proton population accelerated during the impulsive phase of the flare and subsequently trapped by some magnetic structure. In-situ energetic particle measurements by GOES and STEREO (High Energy Telescope, HET) shows that five of these y-events were not accompanied by SEP events at 1 AU, even when multi-point measurements including STEREO are taken into account. Therefore accelerated protons are not always released into the heliosphere. A longer delay between the inaximum temperature and the maxiinum einission measure characterises flares with prolonged high energy gamma-emission and solar proton events.
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000361749700019
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14922
Appears in Collections:卫星精密定轨及应用研究团组_期刊论文

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Recommended Citation:
Mao, YX,Ma, JY,Ni, XQ,et al. An Improved Initial Orbit Determination Method Based on Perturbed Unit Vector Method[J]. INTERNATIONAL CONFERENCE ON ELECTRICAL AND CONTROL ENGINEERING (ICECE 2015),2015(0):123-128.
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