The amplitude of the initial density fluctuation spectrum from lensing statistics
| dc.creator | van Kampen, Eelco | |
| dc.date | 1996-01-22 | |
| dc.date.accessioned | 2026-07-25T12:46:44Z | |
| dc.description | A complete catalogue of galaxy cluster models can be used to constrain cosmological parameters like $σ_8$, the amplitude of the initial density fluctuation spectrum. We focus here on two strong lensing statistics for clusters of galaxies: the fraction of rich Abell clusters that are critical to lensing, and the abundance of arcs in such clusters, especially the X-ray luminous ones. The specific aim of this paper is to constrain $σ_8$ for the standard Cold Dark Matter scenario within an Einstein-de Sitter universe. | |
| dc.description | 6 pages including 3 figures, gzip'ed and uuencoded Postscript, To appear in proceedings "Mapping, Measuring and Modelling the Universe", Valencia 1995, eds. P. Coles and V. Martinez | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9601113 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9601113 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/11706 | |
| dc.subject | Astrophysics | |
| dc.title | The amplitude of the initial density fluctuation spectrum from lensing statistics | |
| dc.type | text |