Open Access

Fig. 3

image

Spectroscopic overdensity of the z ~ 4.57 proto-structure as seen by VUDS. The black histogram shows the incidence of galaxies with secure spectroscopic redshifts falling within a “filter” of size given at the top of the plot for 1000 trial observations of the COSMOS field. For each observation the filter is placed at a random (uniformly generated) spatial location over the VUDS footprint and given a random (uniform) redshift center in the range 4 < z < 5. The filter size is chosen to be identical to that adopted for this proto-structure. The green solid line is a Poissonian fit to the histogram with best-fit parameters given to the right of the line. The number of zspec members of the proto-structure, NPS, is denoted by the vertical dashed line. The spectroscopic overdensity (δgal = (NPSμ)∕μ) and detection significance (σPC = (NPSμ)∕σ) of the proto-structure is listed to the right of the line.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.