When helium fusion begins in the core of a red giant star, the situation quickly gets out of control because electron-degeneracy pressure does not respond to changes in
A) luminosity.
B) density.
C) gravity.
D) temperature.
E) magnetic field strength.

Question

Quizplus · Accepted Answer

Electron-degeneracy pressure is independent of temperature, so when helium fusion begins, the temperature rises rapidly without affecting the pressure, leading to a runaway reaction known as the helium flash.

When Helium Fusion Begins in the Core of a Red