Hostname: page-component-68945f75b7-4zrgc Total loading time: 0 Render date: 2024-08-05T23:12:44.025Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of primordial magnetic fields on CMB

Published online by Cambridge University Press:  01 July 2015

Héctor J. Hortúa  and
Leonardo Castañeda
Héctor J. Hortúa
Affiliation:
Grupo de Gravitación y Cosmología, Observatorio Astronómico Nacional, Universidad Nacional de Colombia, Cra 45 # 26-85, Bogotá D.C., Colombia email: hjhortua@unal.edu.co
Leonardo Castañeda
Affiliation:
Grupo de Gravitación y Cosmología, Observatorio Astronómico Nacional, Universidad Nacional de Colombia, Cra 45 # 26-85, Bogotá D.C., Colombia email: hjhortua@unal.edu.co
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The origin of large-scale magnetic fields is an unsolved problem in cosmology. In order to overcome, a possible scenario comes from the idea that these fields emerged from a small primordial magnetic field (PMF), produced in the early universe. This field could lead to the observed large-scales magnetic fields but also, would have left an imprint on the cosmic microwave background (CMB). In this work we summarize some statistical properties of this PMFs on the FLRW background. Then, we show the resulting PMF power spectrum using cosmological perturbation theory and some effects of PMFs on the CMB anisotropies.

Keywords

Cosmic microwave backgroundPrimordial magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Symposium S306: Statistical Challenges in 21st Century Cosmology , May 2014 , pp. 159 - 161
Copyright
Copyright © International Astronomical Union 2015 

References

Kahniashvili, T., Ratra, B. 2007, Phys. Rev. D, 75, 023002Google Scholar
Finelli, F., Paci, F., Paoletti, D. 2008, Phys. Rev. D, 78, 0233510Google Scholar
Yamazaki, D. G. 2014, Phys. Rev. D, 89, 083528CrossRefGoogle Scholar
Hortúa, H. J., Castañeda, L. 2014, Phys. Rev. D 90, 123520 (2014)Google Scholar