| viXra.org > Relativity and Cosmology > viXra:2507.0021 |
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| viXra.org > Relativity and Cosmology > viXra:2507.0021 |
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Relativity and Cosmology |
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Authors: E. P. J. de Haas
We propose that the pitch angle of spiral arms in disk galaxies encodes the cosmological expansion rate at the epoch of galaxy formation. By modeling spiral structure as a geodesic inflow determined by the balance of gravitational binding and cosmic expansion, we derive a direct mapping between spiral pitch angle and the Hubble parameter $H(z)$. Applying this framework to a sample of nearby galaxies with known pitch angles, we infer consistent formation redshifts of $z approx 10$, corresponding to $t approx 150$ Myr after the Big Bang. These results suggest that spiral arms serve as fossil records of early-universe conditions, offering a novel chronometric tool for galaxy formation and a new observational window into the expansion history of the universe.
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[v1] 2025-07-03 16:48:08
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