“luminosity function”的概念、定义、翻译、参考文献-科学参考

luminosity function

Astronomy

The number of stars, galaxies, or other objects of different luminosity within a given volume of space (see the accompanying diagram). The luminosity function of a star cluster may be found by counting the number of stars of different apparent magnitudes, since all the stars in the cluster are at roughly the same distance.
luminosity function:
The luminosity function for stars within 20 parsecs of the Sun from Hipparcos data. The number of stars is plotted against their absolute magnitude. The flattening of the slope around 6th–7th magnitude is known as the Wielen dip.

单词	luminosity function
释义	luminosity function Astronomy The number of stars, galaxies, or other objects of different luminosity within a given volume of space (see the accompanying diagram). The luminosity function of a star cluster may be found by counting the number of stars of different apparent magnitudes, since all the stars in the cluster are at roughly the same distance. luminosity function: The luminosity function for stars within 20 parsecs of the Sun from Hipparcos data. The number of stars is plotted against their absolute magnitude. The flattening of the slope around 6th–7th magnitude is known as the Wielen dip.
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