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Compressible Turbulence in the Near-Sun Solar Wind: Parker Solar Probe s First Eight Perihelia

AuthorCuesta, Manuel; Chhiber, Rohit; Fu, Xiangrong; Du, Senbei; Yang, Yan; Pecora, Francesco; Matthaeus, William; Li, Hui; Steinberg, John; Guo, Fan; Gan, Zhaoming; Conrad, Emma; Swanson, Diana;
KeywordsParker Data Used; interplanetary turbulence; Plasma physics; Space plasmas; 830; 2089; 1544; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
AbstractMany questions remain about the compressibility of solar wind turbulence with respect to its origins and properties. Low plasma beta (ratio of thermal to magnetic pressure) environments allow for the easier generation of compressible turbulence, enabling study of the relationship between density fluctuations and turbulent Mach number. Utilizing Parker Solar Probe plasma data, we examine the normalized proton density fluctuations $\langle \delta n_p^2\rangle ^1/2/\langle n_p\rangle
Year of Publication2023
Number of PagesL19
Date Publishedjun