When charting the cold gas fraction ($ ext{M}_{ ext{gas}} / ext{M}_{ ext{star}}$) against galaxy mass, where do massive ellipticals typically reside?
Answer
Near the bottom, showing negligible cold gas fractions.
Massive ellipticals sit near the bottom of the graph when plotting cold gas fraction against mass, displaying negligible cold gas fractions, which starkly contrasts with star-forming spirals of similar stellar mass.
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