IS THE DENSITY DISTRIBUTION OF CLUSTERS NON-GAUSSIAN ?
| dc.creator | Kolatt, Tsafrir | |
| dc.date | 1995-05-10 | |
| dc.date.accessioned | 2026-07-07T02:19:46Z | |
| dc.date.available | 2026-07-07T02:19:46Z | |
| dc.description | The one-point probability distribution function (pdf) is computed for the $25\hmpc$-smoothed density field of rich clusters of galaxies in the Abell/\aco\ catalogs. The observed pdf is compared to the pdf s drawn similarly from mock catalogs of clusters in cosmological simulations of Gaussian and several non-Gaussian initial conditions. Several statistics allow significant rejection of the non-Gaussian models tested here, and fail to reject the Gaussian model. A comparison with the predictions of second-order perturbation theory and a log-normal model for cdm Gaussian initial conditions yield a linear biasing factor $b_c/b_o \simeq 4$ and $b_c/b_o\simeq 3.7$ for $R\geq 0$ clusters. | |
| dc.description | To appear in the proceedings of the XXXth MORIOND meeting: "Clustering in the Universe". 8 pages, compressed uuencoded file | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9505049 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9505049 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/9998 | |
| dc.subject | Astrophysics | |
| dc.title | IS THE DENSITY DISTRIBUTION OF CLUSTERS NON-GAUSSIAN ? | |
| dc.type | text |