Brown dwarfs are considered failed stars because
A) they never reach masses larger than 50 Jupiter masses.
B) hydrogen fusion never begins in their cores.
C) convection never plays a role in their energy transport.
D) they shine primarily at infrared wavelengths.
E) they are never as luminous as the Sun.

Question

Quizplus · Accepted Answer

Brown dwarfs are considered failed stars because they do not have enough mass to sustain hydrogen fusion in their cores, which is the process that powers true stars.

Brown Dwarfs Are Considered Failed Stars Because