Constraining the mass of the photon with gamma-ray bursts

Constraining the mass of the photon with gamma-ray bursts
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用伽马射线暴限制光子的质量

DOI:
10.1016/j.jheap.2016.07.001
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发表时间:
2016-07
影响因子:
3.8
通讯作者:
Xue-Feng Wu
Xue-Feng Wu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Bo Zhang;Ya-Ting Chai;Yuan-Chuan Zou;Xue-Feng Wu

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现代物理学的基石之一是爱因斯坦的狭义相对论,其光速恒定和光子质量为零的假设。对光子静止质量m γ的约束是检验爱因斯坦理论以及其他基本电磁理论和粒子理论的基本方法。由于非零光子质量会产生频率(或能量)相关的色散,测量爆炸性天体物理事件发射的不同频率光子的时间延迟是一种重要的和模型无关的方法来限制这种限制。宇宙学γ暴(GRB)具有短时间尺度、高红移、宽频带瞬发和余辉辐射等特点,是研究m γ约束的理想实验平台。本文利用伽玛射线暴早期射电余辉观测和多波段射电峰值计算了光子质量的上限,使Schaefer(1999)的结果改进了近半个数量级。
One of the cornerstones of modern physics is Einstein's special relativity, with its constant speed of light and zero photon mass assumptions. Constraint on the rest mass m γ of photons is a fundamental way to test Einstein's theory, as well as other essential electromagnetic and particle theories. Since non-zero photon mass can give rise to frequency-(or energy-) dependent dispersions, measuring the time delay of photons with different frequencies emitted from explosive astrophysical events is an important and model-independent method to put such a constraint. The cosmological gamma-ray bursts (GRBs), with short time scales, high redshifts as well as broadband prompt and afterglow emissions, provide an ideal testbed for m γ constraints. In this paper we calculate the upper limits of the photon mass with GRB early time radio afterglow observations as well as multi-band radio peaks, thus improve the results of Schaefer (1999) by nearly half an order of magnitude.
DOI: 10.3847/2041-8205/821/2/l22
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期刊: The Astrophysical Journal Letters
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