V2EX large-scale structure

Large-Scale Structure

定义 Definition

(宇宙学)大尺度结构:指在极大空间尺度上(通常为数千万到数十亿光年)物质的分布与组织形态,例如由星系、星系团、超星系团、宇宙丝状体(filaments)与空洞(voids)构成的“宇宙网”(cosmic web)。该短语也可更广义地指任何系统在“大范围/宏观层面”的整体结构。

例句 Examples

The large-scale structure of the universe looks like a cosmic web.
宇宙的大尺度结构看起来像一张“宇宙网”。

By comparing galaxy surveys with simulations, scientists can test how dark matter and dark energy shape large-scale structure over billions of years.
通过对比星系巡天与数值模拟,科学家可以检验暗物质与暗能量如何在数十亿年中塑造宇宙的大尺度结构。

发音 Pronunciation (IPA)

/lrd skel strktr/

词源 Etymology

large-scalelarge(大的)+ scale(尺度、规模)组成,表示“在大范围/宏观尺度上”;structure 来自拉丁语 structura(建造、构造),与“搭建、排列方式”相关。合起来 large-scale structure 字面即“宏观尺度上的结构”,在现代宇宙学语境中专指宇宙物质分布的宏观形态。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Peebles, **The Large-Scale Structure of the Universe**(1979)
  • Peebles, **Principles of Physical Cosmology**(1993)
  • Mo, van den Bosch & White, **Galaxy Formation and Evolution**(2010)
  • Dodelson, **Modern Cosmology**(2003)
  • Liddle, **An Introduction to Modern Cosmology**(多版)
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