V2EX radio galaxy

Radio Galaxy

定义 Definition

射电星系:一种在射电波段辐射特别强的星系,常由星系中心的超大质量黑洞及其吸积盘、喷流等活动驱动;其射电辐射往往比可见光更显著。(该词也可泛指“在射电观测中非常明亮的星系”。)

发音 Pronunciation (IPA)

/redio lksi/

例句 Examples

A radio galaxy can be detected with a radio telescope.
射电星系可以用射电望远镜探测到。

Astronomers mapped the radio galaxy’s jets and lobes to study how energy from its central black hole shapes the surrounding intergalactic medium.
天文学家绘制了该射电星系的喷流与射电瓣结构,以研究其中心黑洞释放的能量如何影响周围的星系际介质。

词源 Etymology

radio(无线电、射电)指电磁波谱中的射电波段;galaxy(星系)源自希腊语 galaxias,与“乳”(银河的“乳白”形象)相关。组合成 radio galaxy,字面义即“在射电波段显著的星系”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Cosmos(Carl Sagan):以科普语境提及射电天文学与射电源(可涉及射电星系)。
  • A Brief History of Time(Stephen Hawking):讨论宇宙与黑洞相关现象时常会涉及活动星系与观测手段(含射电观测语境)。
  • Black Holes and Time Warps: Einstein’s Outrageous Legacy(Kip S. Thorne):谈及黑洞与高能天体物理时,常出现与射电星系喷流相关的概念。
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