Interacting models of soft coincidence

Space/Science » in reply to Dark energy from gravitational collapse?

LJK — 6/22/2006 3:08:32 PM (archived)

Astrophysics, abstract
astro-ph/0606520

From: Diego Pavon [view email]

Date: Wed, 21 Jun 2006 13:21:35 GMT (206kb)

Interacting models of soft coincidence

Authors: Sergio del Campo, Ramon Herrera, German Olivares, Diego Pavon

Comments: 18 pages, 9 figures; to be published in the Physical Review, section D

The coincidence problem of late cosmic acceleration is a serious riddle in connection with our understanding of the evolution of the Universe. In this paper we show that an interaction between the dark energy component (either phantom or quintessence) and dark matter can alleviate it. In this scenario the baryon component is independently conserved. This generalizes a previous study [S. del Campo, R. Herrera, and D. Pavon, Phys. Rev. D 71, 123529 (2005)] in which neither baryons nor phantom energy were considered.

http://arxiv.org/abs/astro-ph/0606520

The whole thread (19 posts)

Can String Theory Explain Dark Energy? - ljk - 6/19/2006 7:08:11 PM
- re: Can String Theory Explain Anything? - phil - 6/19/2006 8:51:18 PM
  - Sure: it explains why kites work. - Fox - 6/19/2006 11:43:29 PM
  - An Interacting Dark Energy Model for the Expansion History of the Universe - LJK - 6/19/2006 9:27:51 PM
    - Dynamics of dark energy v3 - LJK - 6/19/2006 9:34:36 PM
      - Dark energy from gravitational collapse? - LJK - 6/21/2006 8:34:30 PM
        
        Interacting models of soft coincidence - LJK - 6/22/2006 3:08:32 PM
        
        2 guys, dark energy, and $500K each - ljk - 6/23/2006 4:01:18 AM
        
        On cosmic acceleration without dark energy - LJK - 6/23/2006 3:06:01 PM
      - On the similarity of Information Energy to Dark Energy - LJK - 6/20/2006 9:44:48 PM
      - Concerning the instantaneous mass and the extent of an expanding universe - LJK - 6/20/2006 9:39:21 PM
        
        Can a dust dominated universe have accelerated expansion? v4 - LJK - 6/20/2006 9:43:21 PM
        
        I'm not an astrophysicist - SDF - 6/20/2006 10:30:57 PM
        
        And I suspect - SDF - 6/20/2006 10:42:41 PM
        
        Well, Einstein didn't have any original ideas either. - SDF - 6/21/2006 4:32:49 AM
        
        re: Well, Einstein didn't have any original ideas either. - ljk - 6/21/2006 8:13:34 PM
        
        Good question - SDF - 6/22/2006 2:04:31 AM
        
        re: Good question - LJK - 6/22/2006 2:15:22 PM
        
        The issue of Dark Energy in String Theory - LJK - 7/5/2006 8:28:23 PM

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