主页

Dark Energy

warning: Parameter 2 to views_rss_views_feed_argument() expected to be a reference, value given in /home/kambrian/public_html/drupal/includes/module.inc on line 406.

Dark energy as a mirage

周五, 02/22/2008 - 15:44 — kambrian
Authors: Teppo Mattsson
(Submitted on 27 Nov 2007 (v1), last revised 23 Dec 2007 (this version, v2))

A Dark Energy Model Characterized by the Age of the Universe

周日, 10/28/2007 - 14:32 — kambrian
Authors: Rong-Gen Cai
(Submitted on 27 Jul 2007 (v1), last revised 1 Oct 2007 (this version, v4))

Differentiating dark energy and modified gravity with galaxy redshift surveys. (arXiv:0710.3885v1 [astro-ph])

周二, 10/23/2007 - 16:34 — kambrian

Differentiating dark energy and modified gravity with galaxy redshift surveys. (arXiv:0710.3885v1 [astro-ph]) -

The observed cosmic acceleration today could be due to an unknown energy
component (dark energy), or a modification to general relativity (modified
gravity). If dark energy models and modified gravity models are required to
predict the same cosmic expansion history H(z), they will predict different
growth rate for cosmic large scale structure, $f_g(z)=d\ln \delta/d\ln a