The hard X-ray emission from the complex SNR MSH 15-52 observed by BeppoSAX

We present the results of a BeppoSAX observation of the Supernova Remnant M SH 15-52, associated with the pulsar PSR B1509-58, and discuss its main mor phological and spectroscopic properties in the 1.6-200 keV energy range (ME CS and PDS instruments). The two main structures of the remnant, the Southe rn Nebula, the plerion centered on the pulsar, and the Northern Nebula, are clearly visible in the MECS, with the former showing a much a harder spect rum. Furthermore, a diffuse extended emission surrounds the whole remnant u p to approximate to 17' from the center. Non-thermal flux is detected in th e PDS up to 200 keV as well, and it appears that also in this energy range the emission is not concentrated in the central region around the pulsar. T hese data imply that the plerion extends up to a few tens of parsecs from t he pulsar.