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From New Atlas:
Some of the strongest evidence for dark matter to date has been discovered – and ironically, that's thanks to its absence. In a pair of studies published this week, astronomers have shed new light on dark matter through close observation of a galaxy previously found to have very little of the stuff, while the same team found a new example of a similar oddball galaxy.
It's generally believed that galaxies are held together through the gravitational influence of clumps of dark matter, so to find a galaxy with little to no dark matter was a surprise. And while it might sound like a strike against the theory, it actually ends up supporting it.
A Second Galaxy Missing Dark Matter in the NGC 1052 Group (DOI: 10.3847/2041-8213/ab0d92) (DX)
Still Missing Dark Matter: KCWI High-resolution Stellar Kinematics of NGC1052-DF2 (DOI: 10.3847/2041-8213/ab0e8c) (DX)
(Score: 0) by Anonymous Coward on Tuesday April 02 2019, @11:00AM (1 child)
Very first paper about MOND, section III, # 2.
http://adsabs.harvard.edu/doi/10.1086/161130 [harvard.edu]
There is nothing ad hoc about this.
(Score: 1) by khallow on Tuesday April 02 2019, @12:54PM