Description
一個星系的長相， 不只取決於先天的基因， 它後天的發育更是重要。 本集我們繼續聊「星系演化」， 聚焦兩種星系的減肥計畫： 🌟 Stellar feedback（恆星回饋） 靠恆星發光、噴氣、爆炸來清除多餘氣體，維持氣體循環順暢。 🌀 AGN feedback（活躍星系核回饋） 當黑洞暴飲暴食之後，直接來一場宇宙級的能量反彈， 把冷氣體炸上天，從根本上禁止恆星誕生。 -- Hosting provided by SoundOn
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