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| Autore principale: | |
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| Natura: | Recurso digital |
| Lingua: | inglese |
| Pubblicazione: |
Zenodo
2025
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| Soggetti: | |
| Accesso online: | https://doi.org/10.5281/zenodo.17219941 |
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Sommario:
- <p><span>We derive the B-Space background drift rate (H_B(z)) under strict channel separation. The propagation parameter (H_0(z) = c</span><span>kappa(z)) (W-Drag impedance) governs photon transport through the Dark Medium Sea and is conceptually and operationally distinct from the background rate (H_B(z)) (HB-leg), with (H_B0 = H_B(0)). Working in e-folds (N = ln a), the HB-leg obeys the compact master equation dH_B/dN = -1.5</span><span>H_B + 1.5*F_eff(z), where (F_eff(z)) is a boundary-defined effective source determined by the finite-cosmos architecture. In the constant-asymptote regime (F_eff(z) -> H_infinity) we obtain closed forms, including the dust solution for (H_B(z)), the flip redshift (z_flip) at which (q(z_flip) = 0), and the age (t_0) in terms of (H_infinity).</span></p> <p><span>We provide a channel-pure observable interface: (i) BAO–(H) and cosmic-chronometer measurements constrain (H_B(z)) and are independent of (kappa(z)); (ii) flux/angle distances are governed by (kappa(z)) (W-Drag) and are independent of (H_B(z)). The perturbation sector (G-Drag/DMF) is background-neutral and appears in no background equation.</span></p> <p><span>Finally, we state the LambdaCDM-equivalence prior: choosing the central-observer limit and setting (H_0(z) = H_B(z)) with an appropriate (F_eff(z)) reproduces the standard (H(z)), distances, and ages-establishing B-Space as a conservative generalization with a clear containment limit.</span></p> <p>Designed to be a citable reference for all subsequent B-Space studies, this supplement bridges the main framework and day-to-day research use: one dial (F0), clear calibrations, and drop-in equations for distance calculations.</p> <p>Foundation paper (context):<br>Shrourou, F. (2025). B-Space Cosmology: Main Framework. Zenodo. <a href="https://doi.org/10.5281/zenodo.17069443" target="_new" rel="noopener">https://doi.org/10.5281/zenodo.17069443</a></p> <p>Keywords: B-Space Cosmology; background expansion; HB(z); F0 calibration; flip redshift; LambdaCDM mapping; BAO/SN/chronometers; Planck 2018; reproducibility.</p>