Fine-structure variable?

被引：0
|
作者：
Antoinette Songaila
Lennox L. Cowie
机构：
[1] Antoinette Songaila and Lennox L. Cowie are at the Institute for Astronomy,
[2] University of Hawaii,undefined
来源：
Nature | 1999年 / 398卷
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摘要：
Over the entire history of the Universe it is possible that even the known physical constants are not truly constant. The fine-structure constant — which characterizes the strength of the attraction between electrons and photons — is predicted by some theories to vary over time. New data from quasar spectra provide an upper limit on such variation.
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页码：667 / 668
页数：1
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