Quantitative Analysis of the Void Size Distribution in the LCRS and in CDM Models

V. Mueller; S. Arbabi-Bidgoli

Quantitative Analysis of the Void Size Distribution in the LCRS and in CDM Models

Astrophysics 2007-05-23 v1

Authors: V. Mueller , S. Arbabi-Bidgoli

Abstract

We have analyzed the size distribution of voids in 2D slices of the Las Campanas Redshift Survey (LCRS). The characteristic sizes show a scaling $D = D_0 + \nu\lambda$ with the mean galaxy separation $\lambda$ . Comparison with mock samples of the LCRS in 2D and 3D, using various simulations, cosmologies and galaxy identification schemes, gives a similar scaling, but with steeper slope and a lack of large voids. Best results are obtained for dark matter halos in a $\Lambda$ CDM model.

Keywords

void size distribution LCRS CDM models dark matter halos cosmology scaling relation

Cite

@article{arxiv.astro-ph/0103110,
  title  = {Quantitative Analysis of the Void Size Distribution in the LCRS and in CDM Models},
  author = {V. Mueller and S. Arbabi-Bidgoli},
  journal= {arXiv preprint arXiv:astro-ph/0103110},
  year   = {2007}
}

Comments

4 pages, to appear in the Proccedings of the `4th China-Germany Workshop on Cosmology', Shanghai, October 2000

Quantitative Analysis of the Void Size Distribution in the LCRS and in CDM Models

Abstract

Keywords

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