fig15 We use our recent estimation of the clustering ratio at high redshift (from VIPERS PDR-1) in the weakly non-linear regime (~5 Mpc/h) and combine it to the previous measurement performed in the linear regime, at low redshift (from SDSS DR-7). The outcome of this combination provide us with an precise and accurate measurement of the matter density parameter today.
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The clustering ratio in VIPERS PDR-1
The clustering ratio from VIPERS PDR-1 We analyzed VIPERS PDR-1 using a new statistical tool; the clustering ratio of galaxies. This quantity captures most of the information about the power spectrum of matter fluctuations. The great advantage of using it comes from the fact that it is almost insensitive to local non-linear bias and, in the linear regime, does not…
Post-doc fellowships available: apply now!
Two post-doctoral positions will be available in 2014 at the Osservatorio Astronomico di Brera (OA-Brera) of INAF, within the “DARKLIGHT” cosmology group led by Dr. Luigi Guzzo and funded by a 5-year ERC Advanced Research Grant. The goal of the program is to develop new techniques and models to extract cosmological information from current and future galaxy redshift surveys, with particular…
Darklight Project Meeting | Varenna, 17-19 June 2013
From 17th until 19th June 2013, the Darklight team and fellow cosmologists of the Observatory of Brera – together with a few external experts, including Professor John Peacock (University of Edinburgh) – gathered in Varenna at the beautiful premises of Villa Monastero for a meeting focused on the topics of the Darklight project. Please click here to access the presentations.