TitleLight speed variation from gamma-ray bursts
AuthorsXu, Haowei
Ma, Bo-Qiang
AffiliationPeking Univ, Sch Phys, Beijing 100871, Peoples R China.
Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China.
Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China.
Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.
Peking Univ, Ctr Hist & Philosophy Sci, Beijing 100871, Peoples R China.
KeywordsLight speed
Gamma ray burst
Lorentz invariance violation
QUANTUM-GRAVITY
GRB
VIOLATION
AFTERGLOW
Issue Date2016
PublisherASTROPARTICLE PHYSICS
CitationASTROPARTICLE PHYSICS.2016,82,72-76.
AbstractThe effect of quantum gravity can bring a tiny light speed variation which is detectable through energetic photons propagating from gamma ray bursts (GRBs) to an observer such as the space observatory. Through an analysis of the energetic photon data of the GRBs observed by the Fermi Gamma-ray Space Telescope (FGST), we reveal a surprising regularity of the observed time lags between photons of different energies with respect to the Lorentz violation factor due to the light speed energy dependence. Such regularity suggests a linear form correction of the light speed v(E) = c(1 - E/E-LV), where E is the photon energy and E-LV = (3.60 +/- 0.26) x 10(17) GeV is the Lorentz violation scale measured by the energetic photon data of GRBs. The results support an energy dependence of the light speed in cosmological space. (C) 2016 Elsevier B.V. All rights reserved.
URIhttp://hdl.handle.net/20.500.11897/491496
ISSN0927-6505
DOI10.1016/j.astropartphys.2016.05.008
IndexedSCI(E)
EI
Appears in Collections:物理学院
哲学系(宗教学系)
核物理与核技术国家重点实验室

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