The Nature of Dark Energy from deep Cluster Abundance
| dc.creator | Solevi, P. | |
| dc.creator | Mainini, R. | |
| dc.creator | Bonometto, S. A. | |
| dc.date | 2004-12-02 | |
| dc.date.accessioned | 2026-07-07T02:16:07Z | |
| dc.date.available | 2026-07-07T02:16:07Z | |
| dc.description | We show that using the redshift dependence of the deep cluster abundance to detect the nature of Dark Energy is a serious challenge. We compare the expected differences between flat LCDM models, with different Omega_mo, with the difference between LCDM and dynamical DE models. In the former case, cluster abundances in comoving volume and geometrical factors act in the same direction, yielding a significant difference between the expected angular densities. On the contrary, when we keep a constant Omega_mo and change the DE nature,abundances in comoving volume and geometrical factors act in the opposite direction, so that the expected differences in angular densities reduce to small factors. | |
| dc.description | 12 pages, 4 figures; submitted to ApJ | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0412054 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0412054 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/8666 | |
| dc.subject | Astrophysics | |
| dc.title | The Nature of Dark Energy from deep Cluster Abundance | |
| dc.type | text |