Modification of small- and middle-scale solar wind structures by the bow shock and magnetosheath: Correlation analysis

Rakhmanova, L. S.; Рязанцева, М. О.; Zastenker, G. N.; Šafránková, Jana

doi:10.1016/j.pss.2015.03.003

Cited by 7 publications

(6 citation statements)

References 28 publications

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“…Our analysis showed that surviving the transmission became more probable when fluctuations had frequencies below ∼0.01 Hz. This is in agreement with previous research (Rakhmanova et al., 2015). We note, however, that waves at higher frequencies are thought to transmit across the bow shock (e.g., Clausen et al., 2009; Takahashi et al., 2021) and more observations are needed for further conclusions.…”

Section: Discussionsupporting

confidence: 94%

“…The figure shows that the probability of feature transmission increases significantly for frequencies below ∼0.01 Hz. This finding is in agreement with Rakhmanova et al (2015), who reported similar frequency ranges when examining solar wind origin magnetic fluctuations in the Earth's magnetosheath. They concluded that bow shock and magnetosheath processes contribute considerably to the distribution of magnetic fluctuations at higher frequencies.…”

Section: Correlation Analysissupporting

confidence: 92%

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Transmission of an ICME Sheath Into the Earth's Magnetosheath and the Occurrence of Traveling Foreshocks

et al. 2021

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Interplanetary coronal mass ejections (ICMEs) are massive clouds of plasma and magnetic field that originate from vast eruptions in the Sun's corona. They transfer energy in interplanetary space and are the main drivers of space weather at the Earth (e.g., Gonzalez et al., 1999Gonzalez et al., , 2011Kilpua, Balogh, et al., 2017; and references therein). An ICME consists of a magnetic ejecta which drives a shock and sheath region when traveling with supermagnetosonic speeds relative to the solar wind in interplanetary space. Interplanetary shocks, including those not associated with ICMEs, have been extensively studied (e.g.,

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Section: Discussionsupporting

confidence: 94%

Section: Correlation Analysissupporting

confidence: 92%

Transmission of an ICME Sheath Into the Earth's Magnetosheath and the Occurrence of Traveling Foreshocks

et al. 2021

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“…KHIs on the magnetopause can form a turbulent boundary layer (Stawarz et al., 2016). Additionally, solar wind structures advect into the magnetosheath (Rakhmanova et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes

Burkholder

Nykyri

et al. 2020

Geophysical Research Letters

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On 17 October 2016, Magnetospheric Multiscale (MMS) sampled an electron diffusion region (EDR) embedded in an electron‐scale current sheet within a mixed portion of the high‐latitude magnetosheath adjacent to the magnetopause. We analyze the generalized Ohm's law, dissipation, and electron velocity distributions inside the EDR. The velocities, magnetic fields, and densities observed in the magnetosheath and magnetosphere indicate the magnetopause was unstable to the Kelvin‐Helmholtz instability, which can form electron‐scale current sheets. Alternatively, a current sheet was observed in the solar wind at L1 40 min before the MMS observations, which could have been compressed by the bow shock initiating reconnection. Hundreds of keV particles near the EDR may have been locally accelerated.

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“…The authors used a magnetosheath interplanetary medium reference frame (Verigin et al, 2006) which allowed to account for aberration and for dynamics of the BS and magnetopause positions with variations of the SW parameters. Rakhmanova et al (2015), Rakhmanova et al (2016), and Rakhmanova et al (2018a) presented a statistical study of the two-point correlation function in the SW and MSH with the help of THEMIS data for density and magnetic field magnitude variations in the range [0.001-0.01] Hz. The authors suggested that the SW variations are more likely to stay unchanged during the BS crossing for higher SW densities and IMF magnitude.…”

Section: Properties Of the Msh Fluctuations For Changing Sw Conditionsmentioning

confidence: 99%

“…Predictions of the magnetosphere response on the changing SW parameters are usually based on spacecraft measurements in the Lagrange L1 point (Yermolaev et al, 2010;Pallocchia et al, 2006;Boynton et al, 2012;Podladchikova and Petrukovich, 2012). These predictions do not account for alteration in plasma and magnetic field parameters in the course of passage from L1 to the magnetosphere, including substantial distortion of the flow in the foreshock region (Sibeck et al, 2008) and inside the MSH (Rakhmanova et al, 2015;2016) and changes in the magnetic field orientation in front of the magnetopause (Šafránková et al, 2009;Pulinets et al, 2014). This approach provides high reliability only for intensive magnetosphere disturbances such as geomagnetic storms (Petrukovich et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Role of the variable solar wind in the dynamics of small-scale magnetosheath structures

Rakhmanova

Рязанцева

Zastenker

et al. 2023

Front. Astron. Space Sci.

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Varying solar wind plays a crucial role in the processes inside the magnetosphere. Statistical studies generally reveal the geoeffectiveness of solar wind streams of different origins and types, characterized by various parameters such as dynamic pressure and magnetic field orientation. However, the predictions of the space weather are still not completely reliable. Small-scale structures (observed as high-amplitude variations with frequencies above 0.01 Hz) involved in the turbulent flow of the solar wind and in the magnetosheath may contribute to the models’ inaccuracies. Spacecraft measurements obtained during last 2 decades provide a great amount of new information about small-scale plasma processes in near-Earth space. However, the influence of solar wind on the dynamics of the small-scale structures in the magnetosheath has been rarely addressed. The present review summarizes experimental studies on this influence including features of turbulence around ion scales. The study aims to give a general picture of the problem and underline the gaps in current understanding of the role of the dynamics of the small-scale structures and turbulence in the solar–terrestrial relations.

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Modification of small- and middle-scale solar wind structures by the bow shock and magnetosheath: Correlation analysis

Cited by 7 publications

References 28 publications

Transmission of an ICME Sheath Into the Earth's Magnetosheath and the Occurrence of Traveling Foreshocks

Transmission of an ICME Sheath Into the Earth's Magnetosheath and the Occurrence of Traveling Foreshocks

Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes

Role of the variable solar wind in the dynamics of small-scale magnetosheath structures

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