English

Non-Gaussian spectra and the search for cosmic strings

Astrophysics 2007-05-23 v1

Abstract

We present a new tool for relating theory and experiment suited for non-Gaussian theories: non-Gaussian spectra. It does for non-Gaussian theories what the angular power spectrum CC_\ell does for Gaussian theories. We then show how previous studies of cosmic strings have over rated their non-Gaussian signature. More realistic maps are not visually stringy. However non-Gaussian spectra will accuse their stringiness. We finally summarise the steps of an undergoing experimental project aiming at searching for cosmic strings by means of this technique.

Keywords

Cite

@article{arxiv.astro-ph/9702131,
  title  = {Non-Gaussian spectra and the search for cosmic strings},
  author = {Joao Magueijo and Alex Lewin},
  journal= {arXiv preprint arXiv:astro-ph/9702131},
  year   = {2007}
}

Comments

Contribution to the proceedings of ``Topological defects and CMB'', Rome, October 96