The discussion centers on the paper "The Local Void: for or against ΛCDM?" which examines low galaxy counts near the Milky Way and their implications for the ΛCDM model. Utilizing the Millennium II supercomputer at the Max Planck Supercomputer Center, a ten billion particle dark matter numerical analysis was conducted, confirming that such voids are probable under reasonable ΛCDM assumptions. The analysis required 1.4 million CPU hours across 2048 cores, taking approximately one month to complete. The resilience of the ΛCDM model is emphasized, suggesting skepticism towards its validity is unwarranted.
PREREQUISITESAstronomers, astrophysicists, and researchers interested in cosmology, particularly those studying galaxy formation and the ΛCDM model.
Very cool. More or less what I expected. The ΛCDM model has proven to be remarkably resilient, and I really think it's a bad idea to bet against it.Chronos said:This paper - The Local Void: for or against ΛCDM?,http://arxiv.org/abs/1401.6459 - puts to the test the question of low galaxy counts in the vicinity of the Milky Way. It has been suggested this poses a problem for LCDM. Using the Millennium II supercomputer at the Max Planck Supercomputer Center, a ten billion particle dark matter numerical analysis was performed and revealed such voids are not only possible, but, probable under reasonable LCDM assumptions.