[astro-ph/0511073] Comments on Backreaction and Cosmic Acceleration

Authors:  E.W. Kolb (Fermilab and University of Chicago), S. Matarrese (Physics Dept., University of Padova), A. Riotto (CERN, Geneva)
Abstract:  In this brief WEB note we comment on recent papers related to our paper "On Acceleration Without Dark Energy".
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Discussion related to specific recent arXiv papers
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Aurelien Fraisse
Posts: 11
Joined: September 27 2004
Affiliation: Princeton University

[astro-ph/0511073] Comments on Backreaction and Cosmic Accel

Post by Aurelien Fraisse » November 03 2005

Dear all,

To follow up on recent discussions, Kolb et al. posted this web note today on astro-ph.
I have to admit that I am getting a bit lost with this succession of papers arguing for or against backreaction as the source of cosmic acceleration...


Niayesh Afshordi
Posts: 49
Joined: December 17 2004
Affiliation: Perimeter Institute/ University of Waterloo

[astro-ph/0511073] Comments on Backreaction and Cosmic Accel

Post by Niayesh Afshordi » November 07 2005

As far as I understand, you can safely ignore all claims of significant back-reaction so far. They are either invalid (small scale ones), or cannot mimic dark energy
(large scale ones).

I think the main idea is not yet ruled out, but is very unlikely. You can have a look at my talk on backreaction at MPA in:
http://cfa-www.harvard.edu/~nafshordi/i ... age482.htm

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