星系中的射电辐射

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星系中的射电辐射主要有三种

  • 同步辐射 （低频，幂律谱）
  • 自由-自由散射 (HII区：低频是接近于热谱，光学厚，高频光学薄，平谱）
https://www.cv.nrao.edu/course/astr534/FreeFreeEmission.html
  • AME
Anomalous Microwave Emission (AME) is a component of diffuse Galactic radiation observed at frequencies in the range ≈ 10–60 GHz. AME was first detected in 1996 and recognised as an additional component of emission in 1997

恒星形成相关

  • 射电与光学观测的关系（恒星形成）Radio-dim and bright regions in spiral galaxies [1]
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