Reionisation Midpoint and Duration under a Bounce-Shifted Star-Formation Onset
Year: 2026
Type: article
Abstract: Reionisation is often summarised by two numbers, a midpoint and a duration, and different probes constrain different combinations of them. Using the stated cosmology and the brightness-temperature relations described in the Methods, the calculation gives the following headline values: z mid = 7.4; duration dz = 1.8; z mid standard = 7.7; shift = -0.3. The comparison values taken from the published record — including the EDGES and SARAS reports, HERA limits and the Planck optical depth where relevant — are used exactly as published, and the bounce contribution enters only through the named timing, heating or shear inputs. The result is a computed prediction for the delayed-onset history, with its sensitivity to each input stated in the Discussion. This study is simulated and computed from stated assumptions; it is not a measurement.
Author: Aldred, William Alexander
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225818547
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