Dwarf galaxies and cold dark matter
These simulations predict indeed that there should be a large number of dwarf galaxies distributed so isotropic around these objects. In the case of the Milky Way , it was expected to find between 100 and 600 when we do observe for the moment that 24 Moreover, Pavel Kroupa astrophysicist argued for years with some colleagues that dwarf galaxies of the Milky Way seemed to gather in a disc. But as the actual count of these stars is difficult long distance and that missing data for the Milky Way, the members of Pandas had turned to Andromeda, the nearest large galaxy to us in the Local Group , hoping to eliminate the contradictions between the model of cold dark matter and observations.
To their surprise, they not only confirmed that there was only a small number of dwarf galaxies in orbit around Andromeda but they gathered in a disc. http://enjoycoloring.com/ The easiest way to explain the presence of this drive way is to consider that dwarf galaxies are the remnants of of current stars torn by forces of tide during a collision between Andromeda and another large galaxy it There are billions of years. But suddenly, the conflict with the model of cold dark matter becomes even more acute because of the small number of dwarf galaxies observed from non lumps of dark matter but a collision between galaxies.
These simulations predict indeed that there should be a large number of dwarf galaxies distributed so isotropic around these objects. In the case of the Milky Way , it was expected to find between 100 and 600 when we do observe for the moment that 24 Moreover, Pavel Kroupa astrophysicist argued for years with some colleagues that dwarf galaxies of the Milky Way seemed to gather in a disc. But as the actual count of these stars is difficult long distance and that missing data for the Milky Way, the members of Pandas had turned to Andromeda, the nearest large galaxy to us in the Local Group , hoping to eliminate the contradictions between the model of cold dark matter and observations.
To their surprise, they not only confirmed that there was only a small number of dwarf galaxies in orbit around Andromeda but they gathered in a disc. http://enjoycoloring.com/ The easiest way to explain the presence of this drive way is to consider that dwarf galaxies are the remnants of of current stars torn by forces of tide during a collision between Andromeda and another large galaxy it There are billions of years. But suddenly, the conflict with the model of cold dark matter becomes even more acute because of the small number of dwarf galaxies observed from non lumps of dark matter but a collision between galaxies.