Partial Lyα thermalization in an analytic nonlinear diffusion model
During recombination, the cosmic background radiation is disturbed, in particular, by Lyman-alpha emissions from neutral hydrogen. It is proposed to account for the subsequent time-dependent partial thermalization of the Ly$$\alpha$$energy content in an analytically solvable nonlinear diffusion mode...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
28 February 2024
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Scientific reports
Year: 2024, Jahrgang: 14, Pages: 1-10 |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-024-54833-z |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41598-024-54833-z Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41598-024-54833-z 
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| Verfasserangaben: | Georg Wolschin |
| Zusammenfassung: | During recombination, the cosmic background radiation is disturbed, in particular, by Lyman-alpha emissions from neutral hydrogen. It is proposed to account for the subsequent time-dependent partial thermalization of the Ly$$\alpha$$energy content in an analytically solvable nonlinear diffusion model. The amplitude of the partially thermalized and redshifted Ly$$\alpha$$line is found to be too low to be visible in the cosmic microwave spectrum, in accordance with previous numerical models and Planck observations. |
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| Beschreibung: | Gesehen am 09.08.2024 |
| Beschreibung: | Online Resource |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-024-54833-z |