V2EX photosphere

Photosphere

定义 Definition

photosphere(光球层):指恒星(尤其是太阳)表面可见的“发光层”,也是我们主要接收到可见光的区域;并非固体表面,而是气体/等离子体达到可见光学深度约为 1 的那一层。也可指某些天体的大气中“可见的发光层”。

发音 Pronunciation

/fotsfr/

例句 Examples

The Sun’s photosphere looks smooth from far away.
从远处看,太阳的光球层看起来很平滑。

When a large sunspot crosses the photosphere, the surrounding area can appear brighter by contrast, revealing changes in temperature and magnetic activity.
当一个大型太阳黑子穿过光球层时,周围区域会因对比而显得更亮,从而显示出温度与磁活动的变化。

词源 Etymology

源自希腊语词根 **photo-**(光)+ -sphere(球体、层/区域)。字面意思是“发光的球层”,用来指恒星可见的发光外层。

相关词 Related Words

文学作品与著名文本 Literary Works

  • Agnes Mary Clerke:《A Popular History of Astronomy During the Nineteenth Century》中讨论太阳观测与光球层相关内容。
  • Arthur Eddington:《The Internal Constitution of the Stars》在恒星结构与辐射传输的语境中涉及“光球层/可见层”的概念。
  • James B. Kaler:《Stars and Their Spectra》在恒星光谱与可见层形成机制的章节中使用该词。
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