Wednesday, April 15, 2009

Cosmic Battle Field

After all, Fritz Zwicky was right. There IS dark matter in the universe. The Lamda CDM model has been vindicated, while the MOND suffered a blow in this cosmic saga of the dark matter battle field. Except that there is no need for the presence of the exotic particles to explain the dark matter’s identity, most of the results of the CDM model should be valid without a major revision.

So, the LHC can relax from the pressure of the expectation of the detection of the exotic particles called WIMPs. At least for now it seems that the detection of the WIMPs is irrelevant to the success of the CDM model. Of course, even if the WIMP may be detected from LHC, there is no reason they should be populated in such a density around the core of the galaxies that the debate will not be over without an additional physics.

“Moreover, ΛCDM says nothing about the fundamental physical origin of dark matter, dark energy and the nearly scale-invariant spectrum of primordial curvature perturbations: in that sense, it is merely a useful parameterization of ignorance.” quoted from Wiki.

Now, what will be the real identity of the dark matter? Will they look like sands, ice, rocks or rocks of the size of the boulders? If we look at the volcanoes that erupt on earth, it will be pretty much the same as the jets from the rotating galactic cores except that the strong repulsive gravity at the poles will send them very far away (light years) than the usual pressure powered eruption of the volcanoes on earth.

Normally, the faster the expansion of the pressure as they come out of the nozzle, the finer the size of the particles and also the faster the rate of the condensation. But then the port of the rotating core of the galaxies may not be small whatever the meaning of the "small" in this case may be. So, one can expect that the rocks ejected from the rotating star could easily be the size of the boulders if not the size of the typical asteroids.

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