请输入您要查询的字词:

 

单词 black-body radiation
释义
black-body radiation

Astronomy
  • The thermal radiation that would be emitted by a black body. Black-body radiation has a characteristic spectrum, described by Planck’s law, in which the peak of the emission moves to shorter wavelengths as the temperature of the black body rises (see Wien’s Displacement Law). The cosmic background radiation is black-body radiation, and stars often act as black-body radiators in the optical part of the spectrum.

    black-body radiation:

    black-body radiation

    The higher the temperature of a black body, the more the peak of the emitted radiation is displaced towards shorter wavelengths. Hot stars have a peak in the ultraviolet, while cool stars peak in the infrared. Solar-type stars have a peak in the visible part of the spectrum.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/7/1 15:20:55