The Effective Viscoelastic Spacetime Model: A New Interpretation of the RAR Relation
Published in Astronomy
The standard dark matter paradigm successfully explains many cosmological observations, yet several empirical relations in galaxies suggest the existence of deeper dynamical regularities.
In the Effective Viscoelastic Spacetime Model (EVM), spacetime is treated as an effective medium with delayed gravitational response properties analogous to viscoelastic systems.
Under this interpretation:
• gravitational response is not purely instantaneous,
• galactic dynamics may contain memory-like effects,
• and the observed Radial Acceleration Relation (RAR) may emerge naturally from spacetime response behavior.
The framework does not necessarily replace general relativity but explores an emergent large-scale effective description of gravitational dynamics.
Possible implications include:
- interpretation of flat galaxy rotation curves,
- reduced dependence on particle dark matter assumptions,
- and new phenomenological approaches to galaxy-scale gravity.
A more detailed theoretical discussion is presented in the associated paper.
I am an independent researcher based in the Republic of Korea and the first proposer of the Effective Viscoelastic Spacetime (EVM) framework. My research focuses on theoretical physics, cosmology, and astrophysics, specifically addressing the dynamic behavior of galaxies.
Through the EVM framework, I explore how the delayed macroscopic response of spacetime—governed by a cosmologically related relaxation timescale—can naturally explain galactic dynamics, such as flat rotation curves and the radial acceleration relation (RAR), without invoking dark matter.
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