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The IBIS/ISGRI camera on board the INTEGRAL observatory has performed a full survey of the Galactic disk in the hard X-ray regime from 20 keV up to several hundred of keV with an unprecedented sensitivity and angular resolution in this energy range. Among a large number of compact binary systems, this survey has revealed a number of unidentified objects. Using X-ray observations of one of these sources, IGR J18490-0000, we discovered a rather bright non-thermal pointlike object surrounded by an extended diffuse nebula compatible with the Integral position. The morphology and spectral behaviour of both pointlike and extended X-ray emissions are reminiscent of a young pulsar wind nebula of a few thousands years. The H.E.S.S. Array has observed the region and we present the TeV detection of the object. We compare this object to other PWNe visible in the hard X-ray and TeV regime. [ABSTRACT FROM AUTHOR]

The study of pulsar bow-shocks is one of the most promising ways towards the understanding of the interactions between neutron stars relativistic winds and their environment. These objects are best resolved as Hα nebulae but velocity-driven features are seen also in the radio and X-ray bands and represent interesting targets for future gamma-rays telescopes. We present a preliminary multiwavelength catalogue of pulsar bow-shocks and discuss the prospects for gamma-rays observations with AGILE and GLAST. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]