The Cosmic Timeline Implied by the JWST Reionization Crisis
Fulvio Melia

TL;DR
This paper compares the standard $ ext{Lambda}$CDM cosmological model with the alternative $R_{ m h}=ct$ model, using JWST data on early galaxies and black holes, and finds the latter aligns better with observations, challenging the standard timeline.
Contribution
It demonstrates that the $R_{ m h}=ct$ cosmology better explains JWST reionization data than $ ext{Lambda}$CDM, questioning the standard cosmological timeline.
Findings
$ ext{Lambda}$CDM predicts a reionization history inconsistent with JWST data.
$R_{ m h}=ct$ model aligns well with the observed reionization timeline.
The anomalies in JWST data support alternative cosmological models over $ ext{Lambda}$CDM.
Abstract
JWST's discovery of well-formed galaxies and supermassive black holes only a few hundred Myr after the big bang, and the identification of polycyclic aromatic hydrocarbons (PAHs) at , seriously challenge the timeline predicted by CDM. Now, a recent analysis of reionization after JWST by Munoz et al. (2024) has concluded that the CDM timeline simply cannot accommodate the combined JWST-Planck observations even if exotic fixes are introduced to modify the standard reionization model. In this paper, we argue that this so-called `photon budget crisis' is more likely due to flaws in the cosmological model itself. We employ the standard reionization model using the JWST-measured UV luminosity function in the early Universe and the timeline and physical conditions in both CDM and . We then contrast the predicted reionization histories in these…
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Taxonomy
TopicsSolar and Space Plasma Dynamics · Cosmology and Gravitation Theories · Geophysics and Gravity Measurements
