FU Orionis Outburst · Episodic Accretion
unseel.com · protostar · disk instability · ~100× brightening
Accretion 10⁻⁷ M☉/yr
Brightness 1× (quiescent)
State
Young protostar
Inner accretion disk
Cold reservoir (dead zone)
Bipolar outflow
Unseel.com · FU Orionis Outburst