An absorption profile centred at 78 megahertz in the sky-averaged spectrum
After stars formed in the early Universe, their ultraviolet light is expected, eventually, to have penetrated the primordial hydrogen gas and altered the excitation state of its 21-centimetre hyperfine line. This alteration would cause the gas to absorb photons from the cosmic microwave background,...
| Autores principales: | , , , , |
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| Formato: | Artículo (Article) |
| Idioma: | Inglés (English) |
| Publicado: |
Springer
2020
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| Materias: |