Baryon Acoustic Oscillations. Equation and physical interpretation


Autores/as

  • Leandro Manuel Pardo Calderón Observatorio Astronómico Nacional, Universidad Nacional de Colombia.

DOI:

https://doi.org/10.22517/23447214.17251

Palabras clave:

Acoustic oscillations, baryons, cosmological perturbations, Newtonian gauge.

Resumen

Baryon Acoustic Oscillations are a phenomenon occurred before matter-radiation decoupling, characterized because the baryonic matter perturbation presents oscillations, as the name suggests. These perturbations propagate like a pressure wave on the photon-baryon fluid produced by gravitational potentials, which join the baryonic matter, and collisions of baryons and photons, which scatter it. This paper shows the Baryon Acoustic Oscillations equation and it provides its physical meaning. Besides, it presents software CAMB as a tool to find BAO equation solutions and support for its physical description.

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Biografía del autor/a

Leandro Manuel Pardo Calderón, Observatorio Astronómico Nacional, Universidad Nacional de Colombia.

Ingeniero Electrónico Universidad Distrital Francisco José de Caldas. Magister en Física Universidad Nacional de Colombia.

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Publicado

2018-06-30

Cómo citar

Pardo Calderón, L. M. (2018). Baryon Acoustic Oscillations. Equation and physical interpretation. Scientia Et Technica, 23(2), 263–268. https://doi.org/10.22517/23447214.17251

Número

Sección

Ciencias Básicas