How might an astronomer measure the initial mass function?

Question

Quizplus · Accepted Answer

The initial mass function describes the distribution of star masses that are formed in a given population. The most efficient way to measure the initial mass function is by cataloging the masses of all the stars in a young open cluster because these stars have the same age and composition, making it easier to determine their masses accurately. By measuring the mass distribution of the stars in the cluster, astronomers can estimate the initial mass function for that particular region of star formation. Cataloging the masses of all the stars in the Milky Way, nearby galaxies, or molecular clouds cannot provide a complete picture of the initial mass function because these populations contain stars of different ages and compositions, making it difficult to isolate the effects of star formation processes.

How Might an Astronomer Measure the Initial Mass Function