The Wide Field Monitor (WFM) of the China-Europe eXTP (enhanced X-ray Timing and Polarimetry) mission

The eXTP (enhanced X-ray Timing and Polarimetry) mission is a major project of the Chinese Academy of Sciences (CAS), with a large involvement of Europe. The scientific payload of eXTP includes four instruments: SFA (Spectroscopy Focusing Array) and PFA (Polarimetry Focusing Array) - led by China - LAD (Large Area Detector) and WFM (Wide Field Monitor) - led by Europe (Italy and Spain, respectively). eXTP with its set of four instruments offers an unique simultaneous wide-band X-ray timing and polarimetry sensitivity. In particular, the WFM for eXTP will be a wide field X-ray monitor instrument in the 2-50 keV energy range. It will have an unprecedented combination of large field of view and imaging, with a very good spectral resolution, down to 2 keV. This will allow eXTP making very relevant discoveries of the variable and transient X-ray sky. Currently eXTP/WFM is in phase B2, after successfully undergoing the I-SRR (Instrument System Requirements Review) in mid-2023. Besides an overview of the eXTP/WFM, the more relevant details about the current work in Phase B2, including the manufacturing and testing of the demonstration models of the WFM subsystems, will be presented.