Galaxies could cycle between an AGN phase and a starburst phase.When the cycles overlapped, astronomers would see both phenomena together.AGNs and starbursts may even evolve in unison.
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释义
星系有可能在AGN与恒星暴增这两个阶段之间交替循环,而当循环重叠时,天文学家将会看见两个现象共存,甚至有可能同步演化。
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