天文研究与技术－国家天文台台刊
天文研究與技術－國傢天文檯檯刊
천문연구여기술－국가천문태태간
ASTRONOMICAL RESEARCH & TECHNOLOGY-PUBLICATIONS OF NATIONAL ASTRONOMICAL OBSERVATORIES OF CHINA
2007年
1期
1-10
,共10页
伽玛射线暴%光变曲线%观测数据统计
伽瑪射線暴%光變麯線%觀測數據統計
가마사선폭%광변곡선%관측수거통계
gamma-ray bursts%light curve%observational data statistical
探索来源于BATSE(http://cossc:gsfc:nasa:gov/batse)的GRB (Gamma-Ray Burst, 伽玛射线暴)观测数据的半峰宽度(FWHM)与能量之间的关系,基于64个用KRL函数模型(即,文[1]中的(22)式)能很好地拟合的FRDE(Fast Rise and Exponential Decay,快速上升指数下降)型脉冲样本.发现 64个样本中有63个的半峰宽度(FWHM)与能量之间的关系属于平台-幂率-平台型结构或峰型结构.64个样本的半峰宽度(FWHM)与能量之间的关系在观测中可详细分为5种类型:a) 有34个样本为幂率形式关系;b) 18个样本为低能段平台关系;c) 有7个样本为高能段平台关系;d) 4个样本为峰型结构关系;e) 另外有1个样本为其他结构.结果表明:GRB观测数据的半峰宽度(FWHM)与能量之间的确存在有幂率的关系.此结果进一步确认了文[2](Qin et al 2005)的观点, 即半峰宽度(FWHM)与能量之间的关系是由于火球模型的多普勒效应(Doppler effect)导致的.
探索來源于BATSE(http://cossc:gsfc:nasa:gov/batse)的GRB (Gamma-Ray Burst, 伽瑪射線暴)觀測數據的半峰寬度(FWHM)與能量之間的關繫,基于64箇用KRL函數模型(即,文[1]中的(22)式)能很好地擬閤的FRDE(Fast Rise and Exponential Decay,快速上升指數下降)型脈遲樣本.髮現 64箇樣本中有63箇的半峰寬度(FWHM)與能量之間的關繫屬于平檯-冪率-平檯型結構或峰型結構.64箇樣本的半峰寬度(FWHM)與能量之間的關繫在觀測中可詳細分為5種類型:a) 有34箇樣本為冪率形式關繫;b) 18箇樣本為低能段平檯關繫;c) 有7箇樣本為高能段平檯關繫;d) 4箇樣本為峰型結構關繫;e) 另外有1箇樣本為其他結構.結果錶明:GRB觀測數據的半峰寬度(FWHM)與能量之間的確存在有冪率的關繫.此結果進一步確認瞭文[2](Qin et al 2005)的觀點, 即半峰寬度(FWHM)與能量之間的關繫是由于火毬模型的多普勒效應(Doppler effect)導緻的.
탐색래원우BATSE(http://cossc:gsfc:nasa:gov/batse)적GRB (Gamma-Ray Burst, 가마사선폭)관측수거적반봉관도(FWHM)여능량지간적관계,기우64개용KRL함수모형(즉,문[1]중적(22)식)능흔호지의합적FRDE(Fast Rise and Exponential Decay,쾌속상승지수하강)형맥충양본.발현 64개양본중유63개적반봉관도(FWHM)여능량지간적관계속우평태-멱솔-평태형결구혹봉형결구.64개양본적반봉관도(FWHM)여능량지간적관계재관측중가상세분위5충류형:a) 유34개양본위멱솔형식관계;b) 18개양본위저능단평태관계;c) 유7개양본위고능단평태관계;d) 4개양본위봉형결구관계;e) 령외유1개양본위기타결구.결과표명:GRB관측수거적반봉관도(FWHM)여능량지간적학존재유멱솔적관계.차결과진일보학인료문[2](Qin et al 2005)적관점, 즉반봉관도(FWHM)여능량지간적관계시유우화구모형적다보륵효응(Doppler effect)도치적.
The relationship between the pulse FWHM (full-widths at half maximum) and the energy of gamma-ray bursts (GRBs) is explored based on the observed data from BATSE data base (http://cossc:gsfc:nasa:gov/atse/). Based on a sample of 64 FRED (fast rise and exponential decay) pulse bursts better fitted with the KRL model ( refer equation (22) in[1]), it is found that 63,out of the 64 sources, belong to either the platform-power-law-platform feature class or the peaked feature group. The classifications for 64 sources could be sorted into five models in detail: a) a power law range could be observed in 34 sources; b) a lower band platform could be observed or suspected in 18 bursts; c) a higher band platform could be observed or suspected in 7 sources; d) a peaked feature could be observed or suspected in 4 GRBs; e) the other model from the four types above could be observed in 1 sources. The result suggests that there exists a power law relationship between the pulse FWHM of GRBs and the energy. And the result confirms the points from Qin et al (2005)[2]that the relationship is due to the Doppler effect of fireballs.
