Welcome to the XMM-Newton Catalogue public pages

2XMM catalogue versions and nomenclature:

With the release of the new incremental version of the 2XMMi catalogue we have taken the opportunity to make a slight addition to the nomenclature, recognising the scope for potential confusion otherwise.

The new nomenclature we have adopted adds a numbered "data release" (DR) to distinguish different versions of the catalogue. This is similar to the approach taken by, eg, the SDSS project. The DR numbering we have adopted is as follows:


Version nomenclature for 2XMM catalogues
Catalogue name     DR version     Full catalogue designation     Year released
2XMMp 0 2XMMp-DR0 2006
2XMM 1 2XMM-DR1 2007
2XMMi 2 2XMMi-DR2 2008
2XMMi-DR3 3 2XMMi-DR3 2010


Available catalogues:

2XMMi-DR3 logo    2XMMi-DR3 -- The latest incremental version of the Second XMM-Newton Serendipitous Source Catalogue.
2XMMi logo    2XMMi -- The Incremental Second XMM-Newton Serendipitous Source Catalogue (2008)
Version with fixed EPIC band 4 fluxes now available.
2XMM logo    2XMM -- The Second XMM-Newton Serendipitous Source Catalogue (2007)
Version with fixed EPIC band 4 fluxes now available.
   2XMMp -- The Second XMM-Newton Serendipitous Source Pre-release Catalogue (2006)
1XMM logo    1XMM -- The First XMM-Newton Serendipitous Source Catalogue (2003)