Luminosity function (astronomy)

In astronomy, the luminosity function gives the number of stars or galaxies with a given luminosity.

White dwarf luminosity function

The white dwarf luminosity function (WDLF) gives the number of white dwarf stars with a given luminosity. As this is determined by the rates at which these stars form and cool, it is of interest for the information it gives about the physics of white dwarf cooling and the age and history of the Galaxy.

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