# PSP Bibliography

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## Found 2 entries in the Bibliography.

### Showing entries from 1 through 2

 2022 Acceleration of polytropic solar wind: Parker Solar Probe observation and one-dimensional model The acceleration of the solar coronal plasma to supersonic speeds is one of the most fundamental yet unresolved problems in heliophysics. Despite the success of Parker s pioneering theory on an isothermal solar corona, the realistic solar wind is observed to be non-isothermal, and the decay of its temperature with radial distance usually can be fitted to a polytropic model. In this work, we use Parker Solar Probe data from the first nine encounters to estimate the polytropic index of solar wind protons. The estimated polytro ... Shi, Chen; Velli, Marco; Bale, Stuart; eville, Victor; c, Milan; Dakeyo, Jean-Baptiste; Published by: Physics of Plasmas      Published on: dec YEAR: 2022     DOI: 10.1063/5.0124703 Statistical Analysis of the Radial Evolution of the Solar Winds between 0.1 and 1 au and Their Semiempirical Isopoly Fluid Modeling Statistical classification of the Helios solar wind observations into several populations sorted by bulk speed has revealed an outward acceleration of the wind. The faster the wind, the smaller this acceleration in the 0.3-1 au radial range. In this paper, we show that recent measurements from the Parker Solar Probe (PSP) are compatible with an extension closer to the Sun of the latter Helios classification. For instance, the well-established bulk speed/proton temperature (u, T $_p$) correlation and bulk speed/electron tempe ... Dakeyo, Jean-Baptiste; Maksimovic, Milan; emoulin, Pascal; Halekas, Jasper; Stevens, Michael; Published by: \apj      Published on: dec YEAR: 2022     DOI: 10.3847/1538-4357/ac9b14

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