A 130-galaxy HI-selected sample yields a tight radial acceleration relation with an acceleration scale near 1.5e-10 m/s^2 and a MOND shape parameter around 4, and shows that the bTFR redshift-evolution signal is largely a selection effect.
A Short History of the Missing Mass and Dark Energy Paradigms
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abstract
In 1900 it was believed that almost 100% of the mass of the Universe resided in stars. Now, in the year 2000, such stars (and cold gas) are known to account for only ~1% its mass. The remaining mass of the Universe is thought to reside in hot baryons (~3%), cold dark matter (~30%) and dark energy (~66%). The present paper traces the evolution of our thinking about the density of the Universe during the Twentieth Century, with special emphasis on the of the discovery of cold dark matter.
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MIGHTEE-HI / LADUMA: Investigating the link between baryons and dynamics with 130 resolved HI-selected galaxies
A 130-galaxy HI-selected sample yields a tight radial acceleration relation with an acceleration scale near 1.5e-10 m/s^2 and a MOND shape parameter around 4, and shows that the bTFR redshift-evolution signal is largely a selection effect.