从原子物理学，到高层大气化学，再到宇宙学：一颗“laser光度比星”，用于校准主要天文台的望远镜
From atomic physics, to upper-atmospheric chemistry, to cosmology: A "laser photometric ratio star" to calibrate telescopes at major observatories
摘要：
由于暗能量，我们的宇宙正在加速膨胀。但自上世纪末发现以来，暗能量的本质一直是个谜。在Research Highlights https://doi.org/10.1002/ntls.20220003中，Justin Albert，Dmitry Budker和Hossein Sadeghpour概述了激光光度比星（一种由激光激发地球上层大气钠层产生的新型光源，它将在589 nm和820 nm波长下同样明亮地辐射）如何帮助我们精确校准望远镜，以了解暗能量的性质。
英文摘要：
The expansion of our Universe is accelerating, due to dark energy. But the nature of dark energy has been a mystery since its discovery at the end of the past century. In Research Highlight https://doi.org/10.1002/ntls.20220003 , Justin Albert, Dmitry Budker and Hossein Sadeghpour provide an overview of how a laser photometric ratio star (a novel light source generated by laser excitation of the Earth's upper-atmospheric sodium layer, which will radiate equally brightly at wavelengths of 589 nm and 820 nm) can help us precisely calibrate telescopes in order to understand the nature of dark energy.
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