The core of a protostar that will eventually become a brown dwarf shrinks until
A)the type of pressure called degeneracy pressure becomes important.
B)its central temperature is high enough to support fusion reactions.
C)it forms a rocky core.
D)it radiates brown light.

Question

Quizplus · Accepted Answer

Once the core of a protostar shrinks to a certain point, the pressure caused by the particles being packed so closely together creates a type of pressure called degeneracy pressure. This pressure is able to support the protostar without fusion reactions taking place, which is necessary for a brown dwarf to form. Therefore, choice A is the correct answer.

The Core of a Protostar That Will Eventually Become a Brown