Research led by Samantha Garza of the University of Washington shows that not only gases such as oxygen circulate in this environment, but also colder “materials” such as carbon. Hubble observations showed that carbon extends far beyond the galaxy, about 400,000 light-years into space.
This recycling process plays a critical role in the evolution of galaxies. If the flow slows down, star formation may stop altogether and galaxies may turn into “stellar deserts.”
Understanding how this cycle works could explain why some galaxies stop forming stars over time.
The results of the research were published in Astrophysical Journal Letters.
Source: Ferra
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