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Showing 2018 · physics.space-phShow all

15 papers · 2 filters

physics.space-ph2018★ 6 cited

The Magnetic Field Geometry of Small Solar Wind Flux Ropes Inferred from their Twist Distribution

W. Yu, C. J. Farrugia, N. Lugaz +4

This work extends recent efforts on the force-free modeling of large flux rope-type structures (magnetic clouds, MCs) to much smaller spatial scales. We first select small flux rop…

physics.space-ph2018★ 27 cited

Multiple satellite analysis of the Earth's thermosphere and interplanetary magnetic field variations due to ICME/CIR events during 2003-2015

Sandro Krauss, Manuela Temmer, Susanne Vennerstroem

We present a refined statistical analysis based on interplanetary coronal mass ejections as well as co-rotating interaction regions for the time period 2003-2015 to estimate the im…

physics.space-ph2018★ 10 cited

On the applicability of Taylor's hypothesis in streaming magnetohydrodynamic turbulence

R. A. Treumann, W. Baumjohann, Yasuhito Narita

We examine the range of applicability of Taylor's hypothesis used in observations of magnetic turbulence in the solar wind. We do not refer to turbulence theory. We simply ask whet…

physics.space-ph2018★ 9 cited

On the ion-inertial range density power spectra in solar wind turbulence

R. A. Treumann, W. Baumjohann, Yasuhito Narita

A model-independent first-principle first-order investigation of the shape of turbulent density-power spectra in the ion-inertial range of the solar wind at 1 AU is presented. De-m…

physics.space-ph2018★ 169 cited

Forecasting the Arrival Time of Coronal Mass Ejections: Analysis of the CCMC CME Scoreboard

Pete Riley, Leila Mays, Jesse Andries +15

Accurate forecasting of the properties of coronal mass ejections as they approach Earth is now recognized as an important strategic objective for both NOAA and NASA. The time of ar…

physics.space-ph2018★ 323 cited

Electron-Scale Dynamics of the Diffusion Region during Symmetric Magnetic Reconnection in Space

R. B. Torbert, J. L. Burch, T. D. Phan +46

Magnetic reconnection is an energy conversion process important in many astrophysical contexts including the Earth's magnetosphere, where the process can be investigated in-situ. H…

physics.space-ph2018★ 52 cited

CME impact on comet 67P/Churyumov-Gerasimenko

Niklas J. T. Edberg, M. Alho, M. André +22

We present Rosetta observations from comet 67P/Churyumov-Gerasimenko during the impact of a coronal mass ejection (CME). The CME impacted on 5-6 Oct 2015, when Rosetta was about 80…

physics.space-ph2018★ 35 cited

On the Role of Separatrix Instabilities in Heating the Reconnection Outflow Region

M. Hesse, C. Norgren, P. Tenfjord +10

A study of the role of microinstabilities at the reconnection separatrix can play in heating the electrons during the transition from inflow to outflow is being presented. We find…

physics.space-ph2018★ 85 cited

How accurately can we measure the reconnection rate for the MMS diffusion region event of 2017-07-11?

Kevin J. Genestreti, Takuma Nakamura, Rumi Nakamura +8

We investigate the accuracy with which the reconnection electric field can be determined from in-situ plasma data. We study the magnetotail electron diffusion region observed…

physics.space-ph2018★ 8 cited

The mirror mode: A "superconducting'' space plasma analogue

R. A. Treumann, W. Baumjohann

We examine the physics of the magnetic mirror mode in its final state of saturation, the thermodynamic equilibrium, to demonstrate that the mirror mode is the analogue of a superco…

physics.space-ph2018★ 11 cited

Electron mirror branch: Observational evidence from "historical" AMPTE-IRM and Equator-S measurements

R. A. Treumann, W. Baumjohann

Based on now historical magnetic and plasma data and available wave spectra from the AMPTE-IRM spacecraft, and on as well historical Equator-S high-cadence magnetic field observati…

physics.space-ph2018

Sub-ionospheric AKR: A possible mechanism for its transport down from the topside generation region to the F layer and ground

R. A. Treumann, W. Baumjohann, J. LaBelle

Recent theoretical work shows that "electron exhausts", elongated regions of depleted electron density shown by PIC codes to be generated in collisionless reconnection, can in prin…

physics.space-ph2018★ 31 cited

Correlation of ICME Magnetic Fields at Radially Aligned Spacecraft

S. W. Good, R. J. Forsyth, J. P. Eastwood +1

The B-field structures of two ICMEs each observed by a pair of spacecraft close to radial alignment have been analysed. The ICMEs were observed in situ by MESSENGER and STEREO-B in…

physics.space-ph2018★ 14 cited

Assessing the time dependence of reconnection with Poynting's theorem: MMS observations

Kevin J. Genestreti, Paul A. Cassak, Ali Varsani +3

We investigate the time dependence of electromagnetic-field-to-plasma energy conversion in the electron diffusion region of asymmetric magnetic reconnection. To do so, we consider…

physics.space-ph2018★ 31 cited

The Physical Foundation of the Reconnection Electric Field

M. Hesse, Y. -H. Liu, L. -J. Chen +8

We report on computer simulations and analytic theory to provide a self-consistent understanding of the role of the reconnection electric field, which extends substantially beyond…