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Getting a handle on MaNGA’s cold gas with the HI-MaNGA survey

7 Jan 2019, 20:45 UTC
Getting a handle on MaNGA’s cold gas with the HI-MaNGA survey NRAO/AUI

The SDSS-IV MaNGA survey is providing the most comprehensive census of the stellar and ionized gas content of local galaxies to date, but there is another major component of galaxies the SDSS telescope does not see: the cold gas. Cold gas plays the key role of fueling the formation of new stars. Galaxies with ongoing star formation tend to have lots of cold gas, while those with no ongoing star formation have very little cold gas. Figuring out how and why galaxies acquire, consume, and/or lose their gas over time is fundamentally important to our understanding of galaxy evolution as a whole.

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