Dictionary of Nomenclature of Celestial Objects (Last update: 20-Sep-2018)
Result of query: info cati 2XMM$
Details on Acronym: 2XMM 2XMM (Second XMM-Newton X-ray source catalogue)
N: about 270000
Object:(X) (SIMBAD class: X = X-ray source)
Note:The 2XMM catalogue includes X-ray sources from public observations spanning the approximately 7 year baseline of the XMM-Newton mission to date. The 2XMM catalogue is the definitive version, superseding the preliminary version, 2XMMp, that was released in July 2006. The 2XMM catalogue is produced by the XMM-Newton Survey Science Centre (SSC), a consortium of institutes in the UK, France, Spain, Germany and Italy. 2009A&A....493..339W describes the creation and characteristics of the 2XMM catalogue.
Originof the Acronym: p = Pre-registered to IAU Comm.5