Speaker
Description
Imaging X-ray Polarimetry Explorer (IXPE) is the first observatory fully dedicated to study the polarization of X-ray sources, it works in the 2-8 keV energy band and thanks to imaging capabilities allows to study polarimetry spatially resolved for the first time. During the first year of observations, Vela Pulsar Wind Nebula (PWN) has been observed for the first time allowing to detect a significant surprising high polarization degree and an angle in agreement with radio observations. PWNe are among the brightest non-thermal X-ray sources in the sky. Many PWNe show axisymmetric equatorial torus/polar jet structures radiating synchrotron X-rays from accelerated electron/positron pairs. The organized magnetic fields in these structures should allow synchrotron polarization in the X-rays. X-ray polarimetric results allow to improve the knowledge on accelerations models in PWNe.