XXL @ LAM
The information system design and implementation is developped at LAM (Marseille) by the CeSAM; quality processes are included in the development. It is develope d under the SItools middleware interface.
XMMLSS:
The XMM-LSS Survey is one of the largest deep cluster survey to date.
Extensive coverage exists from X-ray to radio
wavelengths over the 11 deg2 area. The survey enables the detection of
clusters (M~1014Mo) well above z>1. Special care
has been devoted to the characterization of the survey selection
function and, to date, the XMM-LSS cluster sample is the
only published sample of XMM serendipitous clusters with well-modelled
selection criteria.
XXL:
The XXL survey will map two extragalactic regions of 25 deg2,
using 10 ks XMM observations to yield a point-source sensitivity of ~ 5
10-15 erg/s/cm2 in the [0.5-2] keV band.
It is the largest XMM project
approved to date (3Ms in December 2010, >6Ms in total).
Some 600 new galaxy clusters are expected out to z~1.5-2 as well as more than 10,000 active galactic nucleus (AGNs) out to z~4.
The
main goal of the project is to constrain the Dark Energy equation of
state using clusters of galaxies. This survey will also have lasting
legacy value for cluster scaling laws and studies of AGNs and X-ray
background.
This project builds on the experience acquired during the ten years XMM-LSS pilot survey. It is open to any scientist belonging to the international astronomical community, and interested in actively contributing to the general legacy effort.
The two surveyed regions are:
X-Ray Observations start by mid 2011 and are since completed by mid 2013