Using the dark matter distribution to test our cosmological model
An international team of astrophysicists and cosmologists at various institutes including NAOJ and the Kavli Institute for the Physics and Mathematics of the Universe have submitted a set of five papers, measuring the value for the "clumpiness" of the Universe's dark matter, known to cosmologists as S8. The reported value is 0.76, which aligns with values that other gravitational lensing surveys