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The composite supernova remnant (SNR) MSH 15-52 comprises the bright X-raypulsar wind nebula (PWN) of PSR B1509-58, surrounded by a shell which is aprominent object in the radio domain. H.E.S.S. had discovered extendedvery-high-energy (VHE) gamma-ray emission coincident with the PWN. Withadditional H.E.S.S. observations performed since the 2005 discovery paper, westudy the properties of the emission in greater detail. We compare the VHEgamma-ray morphology of the PWN with that in synchrotron emission, obtainedfrom archival X-ray observations, and discuss the implications on the magneticfield in the nebula. In particular, we discuss potential extended gamma-rayemission beyond the X-ray PWN, which may allow for conclusions on scenarios ofPWNe as sources of cosmic ray electrons and positrons.

VHE gamma-ray study of the composite SNR MSH 15-52 with H.E.S.S