What temporary state is established when deuterium fusion generates energy that counteracts further gravitational collapse?

Answer

Quasi-equilibrium

The onset of deuterium fusion acts like a stellar thermostat; rising temperatures increase the fusion rate, causing expansion that counteracts gravity, establishing a temporary state of quasi-equilibrium.

What temporary state is established when deuterium fusion generates energy that counteracts further gravitational collapse?
starsgravityprotostarformationstar formationastrophysicsenergy generation