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Area of Science:

  • Cosmology
  • Astrophysics
  • Particle Physics

Background:

  • Cosmic strings are hypothetical topological defects in spacetime.
  • Dark matter is a major component of the universe, but its nature remains unknown.
  • Superfluid dark matter models propose exotic properties for dark matter particles.

Purpose of the Study:

  • To analyze the impact of superfluid dark matter on cosmic string wake structure.
  • To investigate the influence of superfluid dark matter on baryon distribution within wakes.
  • To explore parameter regimes of superfluid dark matter consistent with MONDian galaxy rotation curves.

Main Methods:

  • Simulating the evolution of cosmic string wakes with superfluid dark matter.
  • Incorporating both regular and quantum pressure terms for the dark matter fluid.
  • Analyzing the interplay between dark matter and baryonic matter within the wake.

Main Results:

  • Superfluid dark matter significantly alters the structure of cosmic string wakes.
  • The pressure terms of superfluid dark matter affect baryon clumping within the wake.
  • Specific parameter values enable a MONDian explanation for observed galaxy rotation curves.

Conclusions:

  • Superfluid dark matter provides a viable candidate for explaining galactic dynamics.
  • The interplay between dark matter and baryons is crucial for understanding cosmic structure.
  • This study bridges theoretical dark matter models with observational cosmology.