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question on forecasts of dark energy constraints from BAO
 
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Ruth Lazkoz



Joined: 02 Jan 2006
Posts: 14
Affiliation: University of the Basque Country

PostPosted: March 22 2010  Reply with quote

Hi,

Does Fig. 5 In Blake and Glazebrook (astro-ph/0301632) give a good description of future bao constraints (fractional errors) on the line-of-sight and transverse comoving distances (DA/s and sH)?

There seems to be a good concordance with the Seo and Eisenstein prediction for DA/s as seen on http://iopscience.iop.org/0004-637X/665/1/14/fulltext?ejredirect=migration but for the radial distance the behaviour looks rather different as there seems to be a noticeable local minimum at z<1 n the Blake and Glazebrook prediction which does not show up in Seo and Eisenstein.

I have produced my na´ve many-body simulations to get future bao forecasts
and I agree fairly well with the two Blake and Glazebrook figures.

Hope someone with more expertise can think about this question for 10 min and give me a hint.

Best,

Ruth Lazkoz
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