Solar wind turbulence from fluid to kinetic scales: observations at 0.053 and 1 au.

We study Cluster Guest Investigator data when 2 satellites were at 7 km distance, that corresponds to few electron Larmor radius. We find a typical spectral shape within the kinetic range and signatures of intermittency up to electron scales. Local analysis of magnetic fluctuations at electron scales indicates presence of vortex-like coherent structures. We show that these electron scale events are embedded in coherent structures at ion and fluid scales. The results at 1 au are compared with spectral properties and coherent structures at kinetic scales observed by Parker Solar Probe at 11.4 solar radii distance from the Sun during Encounter 19.