| 释义 |
ultraviolet dropout ultraviolet dropout n.（名词）1. The disappearance of the image of an extremely distant galaxy when viewed through an ultraviolet filter, caused by the absorption of ultraviolet rays by intergalactic hydrogen gas.紫外线消失：透过紫外线过滤器观测到的遥远银河的消失图像，由银河间的氢气吸收紫外线导致2. A technique that identifies extremely distant galaxies that are not visible through ultraviolet filters by the comparative analysis of images viewed through red, green, and ultraviolet filters.紫外线侦测器：辨识用紫外线过滤器无法看到的遥远银河的技术，比较分析通过红、绿、紫外线过滤器观测到的图像 |