Dictionary of Nomenclature of Celestial Objects
(Last update: 26-Sep-2023)

Result of query: info cati 4XMM$

Details on Acronym:   4XMM
  
4XMM   (4th catalogue of serendipitous X-ray sources found with XMM-Newton)
 Write:<<4XMM  JHHMMSS.s+DDMMSS>>
 N:  about 800000
Object:Any  (SIMBAD class: X = X-ray Source)
  Note:The XMM-Newton Survey Science Centre generates catalogs of serendipitous    X-ray sources detected in archival X-ray observations of XMM-Newton.    Re-processing of all observations will form the basis of 4XMM. It is a    logical continuation of 1XMM, 2XMM, and 3XMM, all based    on full reprocessing of all observations with most up-to-date software    and calibration.    
    In the same spirit we would like to register 4XMMs for the stacked    version of sources (similar to 3XMMs, that was registered 22 October    2018).    
    http://xmmssc.irap.omp.eu
 Notes:The public release is foreseen for the 20th anniversary of the launch    of XMM-Newton.
 Auth.:Axel Schwope

Leibniz-Institut für Astrophysik Potsdam (AIP)
 Originof the Acronym: p = Pre-registered to IAU Comm.5