More problems for Cold Dark Matter theory, Milky Way doesn't fit model
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From: YKhan on 25 May 2010 01:25 According to CDM models of galaxy formation, the galaxies form first in their halos, and then gradually form the inside bulge later. Much like ice crystallizes from the top of the water downwards. According to this finding, it looks like the Milky Way crystallized everywhere nearly simultaneously, instead. This doesn't fit the Cold Dark Matter model. Yousuf Khan *** Milky Way Fell Together in Chunks : Discovery News "Researchers had previously determined the halo's age by studying several globular clusters that lie within it. The similarity in age of 47 Tucanae and the galactic halo suggests that the two structures may have formed simultaneously, in one giant monolithic gravitational collapse of material, Richer said. "It may have been that major components of the galaxy pretty much formed everywhere at the same time very early on and other bits and pieces came along later," he noted. A younger age for the bulge would have indicated that the galaxy grew more gradually and from the outside in, with the halo forming first and the central bulge arising a few billion years later. But if the age estimate holds up, it would appear to be in conflict with the prescription for galaxy formation dictated by the cold dark matter theory, which holds that galaxies began as small fry that built themselves up by stealing gas and stars from their neighbors." http://news.discovery.com/space/hubble-chunk-formation-hubble.html |