标题： 来自良好定位的快速射电暴的光子质量修订约束 显示英文标题

标题： Revised constraints on the photon mass from well-localized fast radio bursts

摘要： 我们利用贝叶斯推理方法，用定位良好的快速射电暴（FRB）限制光子质量。 考虑了宿主星系和星系间介质的色散量（DM）的概率分布。 从红移范围为$0<z<0.66$内的17个良好定位的FRB中严格限制了光子质量。 假设宿主DM没有红移演化，则分别限制光子质量的$1\sigma$和$2\sigma$上限为$m_\gamma<4.8\times 10^{-51}$千克和$m_\gamma<7.1\times 10^{-51}$千克。 蒙特卡洛模拟表明，即使将FRB样本扩大到200个，并将红移范围扩展到$0<z<3$，也不能显著提高对光子质量的限制能力。 这是因为星系际介质的DM存在很大的不确定性。 显示英文摘要

摘要： We constrain the photon mass from well-localized fast radio bursts (FRBs) using Bayes inference method. The probability distributions of dispersion measures (DM) of host galaxy and intergalactic medium are properly taken into account. The photon mass is tightly constrained from 17 well-localized FRBs in the redshift range $0<z<0.66$. Assuming that there is no redshift evolution of host DM, the $1\sigma$ and $2\sigma$ upper limits of photon mass are constrained to be $m_\gamma<4.8\times 10^{-51}$ kg and $m_\gamma<7.1\times 10^{-51}$ kg, respectively. Monte Carlo simulations show that, even enlarging the FRB sample to 200 and extending the redshift range to $0<z<3$ couldn't significantly improve the constraining ability on photon mass. This is because of the large uncertainty on the DM of intergalactic medium.