Turbulence features of the solar wind from different source regions based on Parker Solar Probe observation

Properties of the solar wind in different types of plasma (e.g., heliospheric current sheet, coronal hole, ejecta, sub-Alfvénic) are known to exhibit distinct features. Based on Parker Solar Probe measurements of the solar wind in the inner heliosphere, we compare the similarities and differences between two streams originating from different sources at the same radial distance. Despite sharing similar properties, including cross helicity, residual energy, Elsasser ratio, and magnetic compressibility, notable differences are observed. For the solar wind associated with active regions, the turbulence exhibits lower magnetic field fluctuation amplitudes, shallower magnetic field spectrum, and stronger intermittency, whereas the turbulence associated with coronal holes displays opposite characteristics. The switchback properties of these two streams are also discussed. Our results further explore the variabilities of solar wind turbulence, which may have implications for solar wind heating and acceleration.