Baryon Acoustic Oscillations. Equation and physical interpretation


Authors

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

DOI:

https://doi.org/10.22517/23447214.17251

Keywords:

Acoustic oscillations, baryons, cosmological perturbations, Newtonian gauge.

Abstract

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.

Downloads

Download data is not yet available.

Author Biography

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

Ingeniero Electrónico. Universidad Distrital Francisco José de Caldas. Bogotá, Colombia. Magister en Ciencias-Física. Universidad Nacional de Colombia. Bogotá, Colombia. Grupo de Gravitación, Cosmología y Galaxias. Observatorio Astronómico Nacional. Universidad Nacional de Colombia.

Downloads

    Vistas(Views): 516
  • PDF Descargas(Downloads): 498

Published

2018-06-30

How to Cite

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

Issue

Vol. 23 No. 2 (2018)

Section

Ciencias Básicas

License

Copyrights

The journal is free open access. The papers are published under the Creative Commons Attribution / Attribution-NonCommercial-NoDerivatives 4.0 International - CC BY-NC-ND 4.0 license. For this reason, the author or authors of a manuscript accepted for publication will yield all the economic rights to the Universidad Tecnológica of Pereira free of charge, taking into account the following:

In the event that the submitted manuscript is accepted for publication, the authors must grant permission to the journal, in unlimited time, to reproduce, to edit, distribute, exhibit and publish anywhere, either by means printed, electronic, databases, repositories, optical discs, Internet or any other required medium. In all cases, the journal preserves the obligation to respect, the moral rights of the authors, contained in article 30 of Law 23 of 1982 of the Government Colombian.

The transferors using ASSIGNMENT OF PATRIMONIAL RIGHTS letter declare that all the material that is part of the article is entirely free of copyright.  Therefore, the authors are responsible for any litigation or related claim to intellectual property rights. They exonerate of all responsibility to the Universidad Tecnológica of Pereira (publishing entity) and the Scientia et Technica journal. Likewise, the authors accept that the work presented will be distributed in free open access, safeguarding copyright under the Creative Commons Attribution / Recognition-NonCommercial-NoDerivatives 4.0 International - https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es license.