Survey of X-ray pulsars in hard X-rays

Results of spectral, timing and spatial analysis of X-ray pulsars in hard X-rays are briefly discussed. Using data of INTEGRAL, XMM-Newton and Chandra observatories we determined an optical counterparts and distances for several X-ray pulsars and built the spatial distribution of this class objects in the Galaxy. Variations of the cyclotron line energy with the luminosity, orbital and pulse phases were studied in a complex manner. In particular, an evolution of V 0332+53 spectral parameters during the brightening and fading phases of the outburst in 2004-2005 shows no evidence for any hysteretic behavior and to impose the more stringent constraints on the magnetic field in the sources. Preliminary results of the pulse phase-resolved spectroscopy of the V 0332+53 emission are presented.