MHD-scale anisotropy in solar wind turbulence near the Sun using Parker solar probe data

被引：6

作者：

Sakshee, Sakshee ^{[1
]}

Bandyopadhyay, Riddhi ^{[2
]}

Banerjee, Supratik ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2022年 / 514卷 / 01期

关键词：

MHD; turbulence; methods: data analysis; solar wind; ENERGY-TRANSFER RATE; MAGNETIC-FIELD; MAGNETOHYDRODYNAMIC TURBULENCE; CROSS HELICITY; INERTIAL-RANGE; POWER SPECTRA; SWITCHBACKS; TRANSITION; EVOLUTION;

D O I：

10.1093/mnras/stac1449

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent Parker Solar Probe (PSP) observations have shown the presence of sudden reversals in the radial magnetic field, known as switchbacks. Applying a method based on wavelet analysis, here we study the nature of power and spectral-index anisotropies in switchback and non-switchback intervals using PSP data. While a similar spectral-index anisotropy, consistent with critical balance, is found in the switchback and non-switchback intervals, power anisotropy is more enhanced in the non-switchback samples. This result may be attributed to the 'less developed' turbulence in the non-switchback periods.

引用

页码：1282 / 1288

页数：7

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