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planetary nebula luminosity function 添加释义

网络释义英英释义

  行星状星云亮度函数

... Blinking Planetary Nebula 英语 Planetary nebula luminosity function 行星状星云亮度函数 bipolar planetary nebula 双极行星状星云 ; 行星状星云 ...

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Planetary nebula luminosity function

  • abstract: Planetary nebula luminosity function (PNLF) is a secondary distance indicator used in astronomy. It makes use of the [O III] λ5007 forbidden line found in all planetary nebula which are members of the old stellar populations (Population II).

以上来源于: WordNet

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