Statistical properties of kinetic-scale magnetic holes in terrestrial space

Yao, Shutao; Yue, ZongShun; Shi, Quanqi; Degeling, A. W.; Fu, H. S.; Tian, Anmin; Zhang, Hui; Vu, Andrew; Guo, Ruilong; Yao, Zhonghua; Liu, Ji; Zong, Qiugang; Zhou, Xuzhi; Li, Jing‐Huan; Li, Wenya; Hu, Hongqiao; Liu, Yangyang; Sun, Weijie

doi:10.26464/epp2021011

Cited by 15 publications

(16 citation statements)

References 88 publications

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“…The only possibly promising spacecraft observations are Magnetospheric Multiscale (MMS) datasets in the magnetosheath under conditions when mirror modes are observed. In this respect, we point to very recent most interesting mirror mode observations [4,45] in the magnetosheath and solar wind. Still, identification of the condensate will be an intricate problem.…”

Section: Discussionsupporting

confidence: 52%

“…For the identification of two such effects in magnetic mirror modes (cf., e.g., Refs. 4,[35][36][37][38]45) observed in the magnetosheath and solar wind, in particular the partial Meissner effect and its related phase transition, we refer to our previous work [5]. The present note completes the theory by presenting the probable mechanism of condensate formation which in high-temperature plasmas to some extent is a surprise and possibly of farther reaching consequences showing that, under particular purely classical conditions, macroscopic effects similar to microscopic quantum states can arise and can be considered to resemble macroscopic quantum effects as they are subject to further affecting the dynamics.…”

Section: Ginzburg Ratiomentioning

confidence: 99%

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Condensate Formation in Collisionless Plasma

Treumann

Baumjohann

2021

Front. Phys.

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Particle condensates in general magnetic mirror geometries in high-temperature plasmas may be caused by a discrete resonance with thermal ion-acoustic background noise near mirror points. The resonance breaks the bounce symmetry, temporally locking the particles to the resonant wavelength. The relevant correlation lengths are the Debye length in the parallel direction and the ion gyroradius in the perpendicular direction.

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Section: Discussionsupporting

confidence: 52%

Section: Ginzburg Ratiomentioning

confidence: 99%

Condensate Formation in Collisionless Plasma

Treumann

Baumjohann

2021

Front. Phys.

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“…In recent decades, electron-scale magnetic dips are reported to widely exist in the terrestrial current sheet (Ge et al 2011;Shustov et al 2019;Yao et al 2021), planetary magnetosheaths (Huang et al 2017;Goodrich et al 2021;Wu et al 2021), and solar wind (Wang et al 2020a(Wang et al , 2020b(Wang et al , 2021d. And electron-scale magnetic peaks are also revealed to exist in the terrestrial magnetosheath (Yao et al 2018) and solar wind (Wang et al 2021c.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

High-precision Calibration of the Fluxgate Magnetometer Offset Vector in the Terrestrial Magnetosheath

Wang

2022

ApJ

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High-precision magnetic field measurements are of great significance for the in-depth study of the physical processes in the astrophysical plasma environment. To obtain accurate natural magnetic fields, in-flight calibration is one key step to obtaining zero offset of the spaceborne fluxgate magnetometer (FGM). Mirror mode structures, widely existing in the solar wind and planetary magnetosheaths and magnetospheres, can be used to calculate the zero offset. However, it is difficult to obtain an accurate zero offset by the current methods using mirror mode structures in the planetary magnetosheath. Here, we develop a new method to calculate the zero offset of the spaceborne FGM using magnetic dips, which are a kind of mirror mode structure. This method is based on the assumption that the magnetic field is zero in the cross section of the magnetic dip. Our method is able to calculate the zero offset using only one magnetic dip. We test this method by using the data from the Magnetospheric Multiscale Mission, and find that the calculation errors of 78.1% of the estimated zero offsets are <0.5 nT when using 25 magnetic dips in the terrestrial magnetosheath. This suggests that our method is able to achieve a high accuracy of the zero offset in the planetary magnetosheath.

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“…Zhang et al, 2017) and magnetosheath at Earth (e.g., Huang, Du, et al, 2017;H. Liu et al, 2019;Yao et al, 2017Yao et al, , 2020Yao et al, , 2021 and Venus (Goodrich et al, 2021), which are commonly believed to be associated with mirror-mode type structures, solitary waves, and electron vortices. The electron vortex driven by the diamagnetic drift and/or E × B drift (e.g., Goodrich, Ergun, & Stawarz, 2016;Goodrich, Ergun, Wilder, et al, 2016;H.…”

mentioning

confidence: 99%