MEREGHETTI, SandroSandroMEREGHETTIRIGOSELLI, MICHELAMICHELARIGOSELLI2020-08-252020-08-2520170250-6335http://hdl.handle.net/20.500.12386/26794Observations obtained in the last years challenged the widespread notion that rotation-powered neutron stars are steady X-ray emitters. Besides a few allegedly rotation-powered neutron stars that showed `magnetar-like' variability, a particularly interesting case is that of PSR B0943+10. Recent observations have shown that this pulsar, well studied in the radio band where it alternates between a bright and a quiescent mode, displays significant X-ray variations, anticorrelated in flux with the radio emission. The study of such synchronous radio/X-ray mode switching opens a new window to investigate the processes responsible for the pulsar radio and high-energy emission. Here we review the main X-ray properties of PSR B0943+10 derived from recent coordinated X-ray and radio observations.STAMPAenArticle10.1007/s12036-017-9464-72-s2.0-85029508182000411868900019https://link.springer.com/article/10.1007%2Fs12036-017-9464-7https://arxiv.org/abs/1709.072332017JApA...38...54MFIS/05 - ASTRONOMIA E ASTROFISICA