The Accuracy of GBM GRB Locations
The Accuracy of GBM GRB Locations
复制标题
GBM GRB 位置的准确性
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
N. Gehrels
中科院分区：
文献类型：
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作者：
M. Briggs;V. Connaughton;C. Meegan;C. Wilson;M. Kippen;K. Hurley;C. Meegan;C. Kouveliotou;N. Gehrels
费米伽马射线爆发监测器(GBM)使用十二个NaI探测器中的相对速率来定位瞬时伽马射线源。对定位算法进行了描述。这种方法既有统计误差，也有系统误差。有三种类型的定位：由机载GBM飞行软件自动定位，通过地面软件自动定位，以及人工引导定位。采用贝叶斯模型比较法分析了GBM GRB定位的误差分布。分析使用了其他仪器提供的准确参考位置的样本。
The Fermi Gamma‐Ray Burst Monitor (GBM) locates transient gamma‐ray sources using the relative rates in the twelve NaI detectors. The location algorithm is described. This method is subject to both statistical and systematic errors. Three types of locations are produced: automatic locations by the Flight Software onboard GBM, automatic locations by ground software, and human‐guided locations. A Bayesian model comparison method is used to analyze the error distributions of the GBM GRB locations. The analysis uses samples of accurate reference locations provided by other instruments.