Quasars Can Trigger Tsunamis That Tear Across Galaxies And Snuff Out Star Formation

Quasars emit potent radiation at the core of many galaxies, affecting star formation. Quasar outflows are powerful enough to prevent star formation by blasting away necessary matter. These outflows, known as quasar winds, expel hundreds of solar masses annually. Quasars remain in this violent state for billions of years before evolving into conventional black holes. The research suggests that quasars at the core of elliptical galaxies may explain why the universe lacks larger galaxies and more stars.

According to the research team, what is the scientific puzzle regarding the size of galaxies and the number of stars?

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How do quasars at the core of elliptical galaxies contribute to our understanding of galaxy formation?

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