English

Signature of a Cosmic String Wake at $z=3$

Cosmology and Nongalactic Astrophysics 2020-06-11 v3 High Energy Physics - Phenomenology

Abstract

In this paper, we describe the results of N-body simulation runs, which include a cosmic string wake of tension Gμ=4×108G\mu= 4 \times 10^{-8} on top of the usual ΛCDM\Lambda CDM fluctuations. To obtain a higher resolution of the wake in the simulations compared to previous work, we insert the effects of the string wake at a lower redshift and perform the simulations in a smaller volume. A curvelet analysis of the wake and no-wake maps is applied, indicating that the presence of a wake can be extracted at a three-sigma confidence level from maps of the two-dimensional dark matter projection down to a redshift of z=3z=3.

Keywords

Cite

@article{arxiv.1810.07737,
  title  = {Signature of a Cosmic String Wake at $z=3$},
  author = {Disrael Camargo Neves da Cunha},
  journal= {arXiv preprint arXiv:1810.07737},
  year   = {2020}
}

Comments

8 pages, 6 figures; We have improved the analysis and results. The text now agrees with the published version