用“天空派”装置研究短时间尺度的天体物理现象
Investigation of astrophysical phenomena in short time scales with "Pi of the Sky" apparatus
摘要：
本文介绍了作者为“天空派”实验设计的数据分析。数据分析包括数据处理和识别短时间尺度天体物理过程的具体算法。算法已经过测试，其效率已被确定和描述。“天空的Pi”原型自2004年6月以来一直在收集数据，算法可以在700多个夜晚进行深入研究和改进。已经发现了一些已证实的天体物理起源事件和100多个10秒时间尺度的未知性质事件。在数据收集期间，在望远镜的视场中出现了231个伽马射线暴中的3个，但没有发现光学对应物，并确定了光学对应物的亮度上限。对天空的连续监测和自身的闪光触发允许在没有相应的伽马射线探测的情况下确定伽马射线暴数量的限制。这允许确定光学和伽马波段中的发射准直比率的限制，其为R >= 4.4。研究了完整的“Pi of the Sky”系统的前景，估计每年探测到的阳性事件数量约为2.5起。
英文摘要：
In this thesis the data analysis designed by author for the "Pi of the Sky" experiment is presented. The data analysis consists of data reduction and specific algorithms for identification of short time scale astrophysical processes. The algorithms have been tested and their efficiency has been determined and described. The "Pi of the Sky" prototype is collecting data since June 2004 and algorithms could be intensively studied and improved during over 700 nights. A few events of confirmed astrophysical origin and above 100 events in 10s time scale of unknown nature have been discovered. During the data collection period 3 Gamma Ray Bursts (out of 231) occurred in the field of view of the telescope, but no optical counterpart has been found. The upper limits for brightness of the optical counterpart have been determined. The continuous monitoring of the sky and own trigger for optical flashes allowed to determine limits on the number of GRBs without corresponding gamma-ray detection. This allowed determining limits on the ratio of emission collimation in optical and gamma bands, which is R >= 4.4. The perspectives of the full "Pi of the Sky" system has been studied and number of positive detections has been estimated on the level of ~ 2.5 events per year.
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