Solar Wind Density and Core Temperature Derived from the PSP Quasi-thermal Noise Measurements
Xianming Zheng,
Kaijun Liu,
Mihailo M. Martinović
et al.
Abstract:Quasi-thermal noise (QTN) spectroscopy is a valuable method to deduce important parameters in space plasma, such as plasma density and temperature, especially when direct particle measurements are not available. The present study develops a new fitting method to fit the QTN spectra observed by the Parker Solar Probe (PSP) with a comprehensive theoretical QTN spectral model. By combining the steepest descent and Levenberg–Marquardt algorithms, the new method is more flexible with initial guess values but still … Show more
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