The hypothesis that any cold or warm dark matter particles of any mass exist has been falsified with much more than 5sigma confidence using the distribution of galaxies on scales of 100kpc to Gpc as well as Chandrasekhar dynamical friction. The Lambda-Cold Dark Matter model of cosmology is therefore invalid, despite its continued popularity with the research community. The Bonn/Prague research group is now studying galaxy-formation and evolution using Milgromian gravitation. Many of the extragalactic problems disappear automatically, but an issue of debate is currently which background cosmology accounts for the observed Universe.
Bio: Pavel Kroupa studied physics at the University of Western Australia, Perth, and defended his PhD degree at the University of Cambridge in 1992. After post-doctoral appointments in Heidelberg and Kiel he accepted a professorship at the University of Bonn. He was awarded with a Heisenberg Fellowship, a Leverhulme-Trust Professorship and a Swinburne Visiting Professorship. He is the recipient of the Silver Commemorative Medal of the Senate of the Czech Republic and the Crystal Rose from J.Hradec. Since 2017, he has also been a professorem hospitem at Charles University in Prague. Pavel leads the Bonn-Prague SPODYR group which studies stellar populations, stellar dynamics, star cluster evolution, galactic dynamics, and cosmology. The group is unique in having developed non-LCDM structure formation simulation infrastructure allowing physically-well motivated research on galaxies and the large-scale matter distribution.
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Published on February 19, 2024
