1420020

Rotation powered pulsars are known to produce outflows in the form of wind nebulae and jets and are recognised as important probes of relativistic shocks and particle acceleration. When the pulsar responsible for these outflows is travelling at supersonic linear velocity the entire system strongly interacts with the surrounding medium. The properties of these high velocity PWN systems departs significantly from their more common zero/low-velocity cousins. In particular recent X-ray observations are revealing -against any previous expectation- parsec-scale jets produced by some of the highest velocity pulsars. These jets develop unbent almost perpendicularly to their direction of motion. Although several hypotheses have been explored at present the launching mechanism at the origin of these exceptional jets is still unclear. The INTEGRAL source IGR J11014-6103 (in the Carina region) hosts the brightest and most elongated of these jets which extends helicoidaly over 15 pc and is accompanied by a straight 1pc counter-jet.Here we propose a 4 Msec observation of IGR J11014-6103 with INTEGRAL (to be performed in the next 2 AOs) to study the hard X-ray spectral properties of the system and in particular to constrain the hard X-ray spectral turn-over and consequently the maximum energy of the injected electrons. The spectral turnover is expected in the range 80-200 keV and therefore IBIS/ISGRI is the only detector currently able to provide such a constraint. This observation will complete a large multi-wavelength campaign that our group is performing on the source from radio up to hard X-rays. The data will allow us to firmly establish the average intensity of the magnetic field responsible for the synchrotron radiation. [truncated! Please see actual data for full text]