Calculations of space distribution of the emission of the Crab Nebula

The brightness distribution, position angles and degree of polarization in the Crab nebula are calculated. The space distribution of magnetic field strength H is adopted to be the same as for magnetic dipole radiation but H-dependence on distance to pulsar is assumed to be H approximately tausup(0.35). From comparison between the calculation results for hard X-ray brightness distribution and the observation it was found that the projection of pulsar's spin to the sky plane is directed along the small axis of the Crab nebula and the angle theta0 between pulsar's spin and the line of sight is within 650-800