Turbulence Evolution Between 0.5 and 1 AU for the Solar Wind of Various Origins

IF 2.7 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Solar Physics Pub Date : 2025-04-03 DOI:10.1007/s11207-025-02458-4

Liudmila Rakhmanova, Maria Riazantseva, Yuri Yermolaev, Alexander Khokhlachev, Georgy Zastenker

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引用次数: 0

Abstract

Probing the solar wind at different distances from the Sun provides a great opportunity to explore turbulence development in the unlimited space. Recent measurements from the near-Sun plasma demonstrate the evolution of turbulence from an undeveloped to a fully developed state on the path from the Sun to the Earth. On the other hand, the properties of turbulence are known to be altered for the solar-wind streams of different origin. The present study adopts measurements during two Solar Orbiter and Wind alignments with separations of 0.1 and 0.5 AU to analyze changes in the properties of turbulence for the same plasma parcels embedded in the solar-wind streams of various origins. The results demonstrate that at scales spectra become shallower toward the Earth’s orbit, while Kolmogorov scaling stays unchanged at the MHD scales. The power of the fluctuations within the inertial range is shown to be an important factor that determines the evolution of the turbulent fluctuations in the inner heliosphere, regardless of the origin of the solar-wind stream.

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来源期刊

Solar Physics 地学天文-天文与天体物理

CiteScore

5.10

自引率

17.90%

发文量

146

审稿时长

1 months

期刊介绍： Solar Physics was founded in 1967 and is the principal journal for the publication of the results of fundamental research on the Sun. The journal treats all aspects of solar physics, ranging from the internal structure of the Sun and its evolution to the outer corona and solar wind in interplanetary space. Papers on solar-terrestrial physics and on stellar research are also published when their results have a direct bearing on our understanding of the Sun.