Relative Contribution of the Hydrogen 2 s Two-Photon Decay and Lyman- α Escape Channels during the Epoch of Cosmological Recombination

Bibcode
2018AstL...44....1R
DOI
10.1134/S1063773718010036
Rubiño-Martin, J. A.; Sunyaev, R. A.
Referencia bibliográfica

Astronomy Letters, Volume 44, Issue 1, pp.1-7

Fecha de publicación:
1
2018
Revista
Astronomy Letters
Número de autores
2
Número de autores del IAC
1
Número de citas
1
Número de citas referidas
1
Descripción
We discuss the evolution of the ratio in number of recombinations due to 2 s two photon escape and due to the escape of Lyman- α photons from the resonance during the epoch of cosmological recombination, within the width of the last scattering surface and near its boundaries. We discuss how this ratio evolves in time, and how it defines the profile of the Lyman- α line in the spectrum of CMB. One of the key reasons for explaining its time dependence is the strong overpopulation of the 2 p level relative to the 2 s level at redshifts z ≲ 750.
Proyectos relacionados
Mapa de todo el cielo mostrando la distribución espacial de las anisotropias primarias del Fondo Cósmico de Microondas (generadas sólo 380,000 años después del Big Bang) extraído de las observaciones del satélite Planck
Anisotropía del Fondo Cósmico de Microondas
El objetivo general de este proyecto es determinar y estudiar las variaciones espaciales y espectrales en la temperatura del Fondo Cósmico de Microondas y en su Polarización en un amplio rango de escalas angulares que van desde pocos minutos de arco hasta varios grados. Las fluctuaciones primordiales en la densidad de materia, que dieron origen a
Rafael
Rebolo López
En ejecución
Tipo
Con árbitro
Cosmología y Astropartículas (CYA)

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