V2EX effective temperature

Effective Temperature

释义 Definition

有效温度:在物理、天文学与大气科学等领域中,用来把复杂系统的热辐射或能量状态“等效”成一个单一温度的量。
常见用法:在天体物理中,指某个天体若视为理想黑体,要辐射出同样总能量(辐射通量)所对应的温度。(在其他语境中也可指不同的“等效温度”定义。)

发音 Pronunciation (IPA)

/fktv tmprtr/

例句 Examples

The star’s effective temperature is about 5,800 K.
这颗恒星的有效温度大约是 5800 开尔文。

Using the measured luminosity and radius, we can estimate the planet’s effective temperature, even if its atmosphere is complicated.
利用测得的光度和半径,我们可以估算这颗行星的有效温度,即使它的大气很复杂。

词源 Etymology

effective 源自拉丁语 effectivus,意为“能产生结果的、起作用的”;temperature 源自拉丁语 temperatura,原意与“适度的混合、调和”相关,后来发展为“温度”。合起来 effective temperature 强调“用一个起作用的可代表整体结果的温度”来描述系统。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • An Introduction to Modern Astrophysics(Bradley W. Carroll & Dale A. Ostlie)
  • Principles of Stellar Evolution and Nucleosynthesis(Donald D. Clayton)
  • Atmospheric Science: An Introductory Survey(John M. Wallace & Peter V. Hobbs)
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