论文标题
重新访问Lorentz不变性的测试与伽马射线爆发：内在滞后的效果
Revisiting Tests of Lorentz Invariance with Gamma-ray Bursts: Effects of Intrinsic Lags
论文作者
论文摘要
由于它们的宇宙学距离高能天体物理来源可以进行前所未有的基本物理测试。通过利用到达光子的光谱时间滞后，伽马射线爆发（GRB）构成了探索违反洛伦兹不变性中心物理原理的最敏感的实验室。人们认为，GRB光谱滞后与其亮度固有地相关，并且固有的源贡献仍然较少了解，可能会对LIV结果产生重大影响。使用Swift望远镜观察到的49个长和短的GRB的组合样品，我们进行了堆叠的光谱滞后搜索LIV效应。我们对LIV设定了新的限制，包括对二次效应的限制，并首次系统地探索了内在的GRB lag-luminity关系的影响。我们发现，源贡献可以强烈影响由此产生的LIV测试，从而将其限制修改为少数。我们讨论来自GRB 221009a的约束。
Due to their cosmological distances high-energy astrophysical sources allow for unprecedented tests of fundamental physics. Gamma-ray bursts (GRBs) comprise among the most sensitive laboratories for exploring the violation of the central physics principle of Lorentz invariance (LIV), by exploiting spectral time lag of arriving photons. It has been believed that GRB spectral lags are inherently related with their luminosities, and intrinsic source contributions, which remain poorly understood, could significantly impact the LIV results. Using a combined sample of 49 long and short GRBs observed by the Swift telescope, we perform a stacked spectral lag search for LIV effects. We set novel limits on LIV, including limits on quadratic effects, and systematically explore for the first time the impacts of the intrinsic GRB lag-luminosity relation. We find that source contributions can strongly impact resulting LIV tests, modifying their limits by up to a factor of few. We discuss constraints coming from GRB 221009A.
