There is a main-sequence mass-luminosity relation because
A)helium fusion produces carbon.
B)stars expand when they become giants.
C)more massive stars support their larger weight by making more energy.
D)the helium flash occurs in degenerate matter.
E)all stars on the main sequence have about the same radius.

Question

Quizplus · Accepted Answer

The main-sequence mass-luminosity relation is the correlation between the mass of a star and its luminosity while it is on the main sequence. The more massive a star is, the more energy it makes, which supports its larger weight. This is why more massive stars are brighter and hotter than less massive stars.

There Is a Main-Sequence Mass-Luminosity Relation Because