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| Hlavní autor: | |
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| Médium: | Recurso digital |
| Jazyk: | |
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Zenodo
2026
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| Témata: | |
| On-line přístup: | https://doi.org/10.5281/zenodo.18909346 |
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- <p>The physical nature of dark energy and the persistent <span></span><span> </span>tension suggest that the assumption of a static cosmological constant (<span></span>) may be incomplete. This paper tests a novel phenomenological framework wherein cosmic acceleration is driven dynamically by the cumulative history of baryonic mass-to-energy conversion, a mechanism termed "Metabolic Exhaust." We perform a highly granular, non-parametric time-series cross-correlation between the Cosmic Star Formation Rate Density (SFRD)—updated with the latest high-redshift data from the James Webb Space Telescope (COSMOS-Web, PRIMER)—and the un-smoothed, cosmology-independent expansion history <span></span><span> </span>derived from the DESI DR1 Cosmic Chronometers and the Pantheon+ compilation. To avoid circularity, cosmic age is reconstructed using Gaussian Process regression. Accounting for temporal autocorrelation using exact degrees of freedom (xDF) corrections, we report the detection of a statistically significant, positive cross-correlation (Pearson r = +0.68, p = 0.0084) strictly contingent upon a temporal delay of <span></span><span> </span>Gyr. This "Geometric Lag" maps the peak of stellar mass assembly at Cosmic Noon (<span></span>) directly to the anomalous late-stage pulse in cosmic acceleration at <span></span>. These results present compelling empirical evidence for a dynamic, delayed coupling between baryonic thermodynamic processes and the macroscopic metric expansion of the universe.</p>