Rochester Institute of Technology | 2017 Mar 29
[img3="The Large Magelanic Cloud is a well-known satellite or dwarf galaxy that closely orbits the Milky Way and is visible in Earth’s southern hemisphere. RIT researchers make the case for the existence of “missing” satellite galaxies that are cloaked in dark matter and cannot be directly observed. (Credit: ESA/NASA/Hubble)"]http://www.rit.edu/news/lib/filelib/201 ... Z8rwcw.jpg[/img3][hr][/hr]Research conducted by scientists at Rochester Institute of Technology rules out a challenge to the accepted standard model of the universe and theory of how galaxies form by shedding new light on a problematic structure.
The vast polar structure—a plane of satellite galaxies at the poles of the Milky Way—is at the center of a tug-of-war between scientists who disagree about the existence of mysterious dark matter, the invisible substance that, according to some scientists, comprises 85 percent of the mass of the universe.
A paper accepted for publication in the Monthly Notices for the Royal Astronomical Society bolsters the standard cosmological model, or the Cold Dark Matter paradigm, by showing that the vast polar structure formed well after the Milky Way and is an unstable structure. ...
Is the Vast Polar Structure of Dwarf Galaxies a Serious Problem for CDM? - Andrew Lipnicky, Sukanya Chakrabarti
- arXiv.org > astro-ph > arXiv:1612.07325 > 21 Dec 2016 (v1), 13 Mar 2017 (v2)