PIRSA:09010011 Scientific Series Cosmology

DOI10.48660/09010011

Series: Cosmology and Gravitation

Ballesteros, G. (2009). The Effect of Dark Energy Perturbations on the Growth of Structures. Perimeter Institute. https://pirsa.org/09010011

Ballesteros, Guillermo. The Effect of Dark Energy Perturbations on the Growth of Structures. Perimeter Institute, Jan. 13, 2009, https://pirsa.org/09010011 

@misc{ pirsa_PIRSA:09010011,
  doi = {10.48660/09010011},
  url = {https://pirsa.org/09010011},
  author = {Ballesteros, Guillermo},
  keywords = {Cosmology},
  language = {en},
  title = {The Effect of Dark Energy Perturbations on the Growth of Structures},
  publisher = {Perimeter Institute},
  year = {2009},
  month = {jan},
  note = {PIRSA:09010011 see, \url{https://pirsa.org}}
}

Abstract

The growth of matter perturbations in the presence of dark energy with small fluctuations depends on the speed of sound of these fluctuations and the comoving scale. The growth index can differ from the value that it takes in the limit of no dark energy perturbations by an amount comparable to the accuracy of future observations. This may contribute to a better characterization of the dark energy properties.

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