Hydrodynamics of structure formation

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SUMMARY

The discussion centers on the paper "Hydrodynamics of structure formation in the early Universe" by C. H. Gibson, T. M. Nieuwenhuizen, and R. E. Schild, which critiques the standard LambdaCDM model. The authors argue that the model's assumptions of linear, collisionless flows are flawed, proposing instead that collisional fluid mechanics with viscosity and turbulence better explains structure formation. They present evidence of turbulent big bang dynamics and fragmentation processes that lead to the formation of primordial-density clumps and galactic dark matter. The findings challenge existing black hole models and suggest a liquid-like behavior of the universe.

PREREQUISITES
  • Understanding of the LambdaCDM model in cosmology
  • Familiarity with fluid mechanics concepts, particularly turbulence and viscosity
  • Knowledge of astrophysical observations, including CMB and quasar microlensing
  • Basic principles of gravitational structure formation in the universe
NEXT STEPS
  • Research the implications of collisional fluid mechanics in astrophysics
  • Study the role of turbulence in cosmic structure formation
  • Examine the observational evidence for primordial-density clumps and their significance
  • Explore alternative models to the LambdaCDM framework in cosmology
USEFUL FOR

Astronomers, astrophysicists, and cosmologists interested in the dynamics of structure formation and those challenging conventional models in cosmology.

wolram
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[9] arXiv:0809.2330 [pdf, other]
Title: Hydrodynamics of structure formation in the early Universe
Authors: C. H. Gibson (UCSD), T. M. Nieuwenhuizen (University of Amsterdam), R. E Schild (Harvard)
Comments: 6 pages 4 figures. Additional information at this http URL
Subjects: Astrophysics (astro-ph)
Theory and observations reveal fatal flaws in the standard LambdaCDM model. The cold dark matter hierarchical clustering paradigm predicts a gradual bottom-up growth of gravitational structures assuming linear, collisionless, ideal flows and unrealistic CDM condensations and mergers. Collisional fluid mechanics with viscosity, turbulence, and diffusion predicts a turbulent big bang and top-down viscous-gravitational fragmentation from supercluster to galaxy scales in the plasma epoch, as observed from 0.3 Gpc void sizes, 1.5 Gpc spins and Kolmogorov-fingerprint-turbulence-signatures in the CMB. Turbulence produced at expanding gravitational void boundaries causes a linear morphology of 3 Kpc fragmenting plasma-protogalaxies along vortex lines, as observed in deep HST images. After decoupling, gas-protogalaxies fragment into primordial-density, million-solar-mass clumps of earth-mass planets forming 0.3 Mpc galactic-dark-matter. White-dwarf-heated planet-atmospheres give dimmed SNe Ia events and false gamma-ray-burst luminosity distances, not dark-energy-Lambda. Quasar microlensing observations rule out no-hair black hole models and require galaxy-dark-matter to be planets-in-clumps.
 
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So the authors believe that the universe should behave like a liquid?
 
sysreset said:
So the authors believe that the universe should behave like a liquid?


sysreset, if you read down to conclusion it is explained.
 

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