How to Kill a Galaxy

The video explores the mystery of galaxy death, focusing on quiescent galaxies where star formation has ceased. It discusses three main hypotheses: strangulation, where galaxies are deprived of hydrogen gas; suppression, where black holes heat the gas, preventing star formation; and RAM pressure stripping, where intergalactic plasma strips away gas. Each mechanism affects galaxies differently, and no single explanation fits all cases. The video concludes with a reflection on the future of our Milky Way, suggesting that galaxy death is a complex process influenced by various factors.

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