Exploring cosmic rays ionization power
After the so-called cosmic recombination the expanding universe entered into a period of darkness, since most of the matter was in a neutral state. However, about a billion years later the intergalactic space was once again ionized. The process, known as the cosmic reionization, required the operati...
Guardado en:
| Autores principales: | , , |
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| Formato: | Objeto de conferencia |
| Lenguaje: | Inglés |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/165271 |
| Aporte de: |
| Sumario: | After the so-called cosmic recombination the expanding universe entered into a period of darkness, since most of the matter was in a neutral state. However, about a billion years later the intergalactic space was once again ionized. The process, known as the cosmic reionization, required the operation of mechanisms that are not well understood. Among other ionizing sources, Population III stars, mini-quasars, and X-ray emitting microquasars have been invoked. All these models relay on the ionizing power of photons. But what about charged particles?. In this contribution we quantify the ionization power of cosmic rays (electrons and protons) in the primordial intergalactic medium. |
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