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physical phenomena > event > atomic process > ionization > photoionization

photoionization
subject			fact

photoionization	has definition The ionization of an atom or molecule by the absorption of a high-energy photon by the particle. It is an important source of opacity in stars.
	is a kind of ionization
ionization	has antonym recombination
atomic process	has domain atomic physics
event	has duration
	has synonym world point
	has time of occurrence