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The complex X-ray system IGR J11014-6103 (a.k.a. the Lighthouse nebula) iscomposed of a bow-shock pulsar wind nebula (PWN) as well as large-scalejet-like features, all launched by IGR J11014-6103 which is movingsupersonically in the interstellar medium. Previous observations suggested thatthe jet features stem from a ballistic jet of relativistic particles. In orderto confirm the nature of the jet and the marginally detected counter-jet, weobtained a new deep 250 ks Chandra observation of the Lighthouse nebula. Weperformed detailed spatial and spectral analysis of all X-ray components of thesystem. The X-ray PWN is now better resolved and shows a clear bi-modalmorphology. The overall helical pattern of the main jet is confirmed. However,there are large deviations from a simple helical model at small and largescales. Significant extended emission is now detected, encompassing the mainjet all along its length. The brightness dip of the main jet at ~50" distancefrom the pulsar is confirmed, the extended emission however preventsconclusions about the coherence at this position of the jet. The counter-jet isnow detected at high statistical significance. In addition, we found twosmall-scale "arcs" departing from the pulsar towards the jets. We also lookedfor possible bow-shock emission in front of the pulsar, with a short VLT/FORS2H-alpha observation. No clear emission is found, most likely because ofcontamination from a diffuse surrounding nebulosity. The results of our X-rayanalysis show that current expectations from a ballistic nature of the jets canexplain satisfactorily some of the observational evidences but cannot fullyreproduce the observations. The alternative scenario (diffusion of particlesalong preexisting magnetic field lines in the surrounding medium) however alsocontinues to suffer from conflicts with the observations.

A closer view of the IGR J11014-6103 outflows