具有红移的HETE-2伽马射线暴的时滞研究：天体物理效应和量子引力特征的探索
Study of time lags in HETE-2 Gamma-Ray Bursts with redshift: search for astrophysical effects and Quantum Gravity signature
摘要：
研究不同能带的伽马射线暴光变曲线中尖峰之间的时间滞后作为红移的函数，可能会导致对量子引力效应的探测。我们分析了HETE-2在2001年至2006年期间探测到的15个具有测量红移的伽马射线暴，以测量与天体物理效应相关的时间滞后，并在额外维度弦模型的框架下寻找量子引力特征。光子标记数据的使用使我们能够考虑各种能量范围。系统的影响，由于选择和削减进行了评估。从光变曲线最大值的研究中未检测到显著的量子引力效应，并将量子引力标度参数的下限设定为3.2x10**15 GeV，置信水平为95%。
英文摘要：
The study of time lags between spikes in Gamma-Ray Bursts light curves in different energy bands as a function of redshift may lead to the detection of effects due to Quantum Gravity. We present an analysis of 15 Gamma-Ray Bursts with measured redshift, detected by the HETE-2 mission between 2001 and 2006 in order to measure time lags related to astrophysical effects and search for Quantum Gravity signature in the framework of an extra-dimension string model. The use of photon-tagged data allows us to consider various energy ranges. Systematic effects due to selection and cuts are evaluated. No significant Quantum Gravity effect is detected from the study of the maxima of the light curves and a lower limit at 95% Confidence Level on the Quantum Gravity scale parameter of 3.2x10**15 GeV is set.
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