主要内容:
用伽玛暴的偏振限定量子引力模型。
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文章信息:
astro-ph/0702006 [abs, ps, pdf, other] : Title: Gamma-ray Burst UV/optical afterglow polarimetry as a probe of Quantum Gravity
Authors: Yi-Zhong Fan, Da-Ming Wei, Dong Xu
Comments: 4 pages including 3 eps figures, accepted for publication in MNRAS
A possible birefringence effect that arises in quantum gravity leads to a frequency-dependent rotation of the polarization angle of linearly polarized emission from distant sources. Here we use the UV/optical polarization data of the afterglows of GRB 020813 and GRB 021004 to constrain this effect. We find an upper limit on the Gambini & Pulin birefringence parameter $| \eta | <2\times>
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