Structure of the magnetopause reconnection layer and of flux transfer events: Ion kinetic effects

2000 ◽  
Vol 105 (A10) ◽  
pp. 23179-23191 ◽  
Author(s):  
Masao Nakamura ◽  
Manfred Scholer
Keyword(s):  
Flux Transfer Events ◽  
Flux Transfer ◽  
Kinetic Effects ◽  
Reconnection Layer ◽  
Magnetopause Reconnection

scholarly journals Evidence for transient, local ion foreshocks caused by dayside magnetopause reconnection

2016 ◽  
Vol 34 (11) ◽  
pp. 943-959 ◽  
Author(s):  
Yann Pfau-Kempf ◽  
Heli Hietala ◽  
Steve E. Milan ◽  
Liisa Juusola ◽  
Sanni Hoilijoki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Interplanetary Magnetic Field ◽  
Ion Beams ◽  
Bow Shock ◽  
Flux Transfer Events ◽  
Dayside Magnetopause ◽  
Flux Transfer ◽  
Push Out ◽  
Magnetopause Reconnection

Abstract. We present a scenario resulting in time-dependent behaviour of the bow shock and transient, local ion reflection under unchanging solar wind conditions. Dayside magnetopause reconnection produces flux transfer events driving fast-mode wave fronts in the magnetosheath. These fronts push out the bow shock surface due to their increased downstream pressure. The resulting bow shock deformations lead to a configuration favourable to localized ion reflection and thus the formation of transient, travelling foreshock-like field-aligned ion beams. This is identified in two-dimensional global magnetospheric hybrid-Vlasov simulations of the Earth's magnetosphere performed using the Vlasiator model (http://vlasiator.fmi.fi). We also present observational data showing the occurrence of dayside reconnection and flux transfer events at the same time as Geotail observations of transient foreshock-like field-aligned ion beams. The spacecraft is located well upstream of the foreshock edge and the bow shock, during a steady southward interplanetary magnetic field and in the absence of any solar wind or interplanetary magnetic field perturbations. This indicates the formation of such localized ion foreshocks.

Bursty Magnetopause Reconnection and its Consequences

1996 ◽  
Author(s):  
Charles F. Kennel
Keyword(s):  
High Speed ◽  
Neutral Line ◽  
Magnetic Activity ◽  
Polar Cusp ◽  
Flux Transfer Events ◽  
Magnetic Perturbations ◽  
Flux Transfer ◽  
Field Lines ◽  
Steady Convection ◽  
Magnetopause Reconnection

There is at least one way in which the reconnection model of substorms is unrealistic. Rarely if ever will the interplanetary field rotate southward, stay southward, and remain constant. Even on those infrequent occasions when it does do so, steady reconnection may not be established on the dayside: We will see that dayside reconnection proceeds in bursts even then. How likely is it then that steady convection will be established on the nightside? In the next two chapters, we will fit together observations of bursty convection at the magnetopause, in the polar cap and auroral ionosphere, at various distances downtail in the plasma sheet, and beyond the average position of the neutral line in the deep tail. In this chapter, we deal with unsteady magnetopause reconnection. We start with one simple observation: The magnetopause is a source of escaping particles with energies higher than can be generated by the average convection potential across the ionosphere (Section 8.2). This, together with the fact that high-speed magnetopause flows can turn on and off between successive magnetopause crossings only minutes apart, suggests that the rate of reconnection is high for short periods of time and low for longer intervals. When the reconnection events are shorter than or comparable to MHD wave propagation times to the ionosphere, we call the reconnection “bursty.” We then let observation define the properties of bursty magnetopause reconnection. First, we discuss “flux transfer events” (FTEs), the traveling magnetic perturbations near the magnetopause (Section 8.3) that are signatures of bursty reconnection elsewhere on the magnetopause (Section 8.4). The magnitudes of the fluxes reconnected in FTEs are estimated in Section 8.5. Next, we discuss some of the ionospheric signatures of flux transfer events that might be expected on general theoretical grounds (Section 8.6). Variable dayside reconnection could be responsible for ULF magnetic activity in the polar cusp region (Section 8.7). We expect sudden magnetopause reconnection events to send Alfven waves (Section 8.8) and velocity-dispersed ions along field lines towards the polar cusp ionosphere (Section 8.9).

The Effect of Solar Wind Mach Numbers on the Occurrence Rate of Flux Transfer Events at the Dayside Magnetopause

2019 ◽  
Vol 46 (8) ◽  
pp. 4106-4113 ◽  
Author(s):  
C. Chen ◽  
T. R. Sun ◽  
C. Wang ◽  
Z. H. Huang ◽  
B. B. Tang ◽  
...  
Keyword(s):  
Solar Wind ◽  
Occurrence Rate ◽  
Flux Transfer Events ◽  
Dayside Magnetopause ◽  
Mach Numbers ◽  
Flux Transfer

scholarly journals Flux transfer events: Scale size and interior structure

1984 ◽  
Vol 11 (2) ◽  
pp. 131-134 ◽  
Author(s):  
M. A. Saunders ◽  
C. T. Russell ◽  
N. Sckopke
Keyword(s):  
Interior Structure ◽  
Flux Transfer Events ◽  
Scale Size ◽  
Flux Transfer

Observations of a possible ground signature of flux transfer events

1985 ◽  
Vol 90 (A5) ◽  
pp. 4069 ◽  
Author(s):  
C. K. Goertz ◽  
E. Nielsen ◽  
A. Korth ◽  
K. H. Glassmeier ◽  
C. Haldoupis ◽  
...  
Keyword(s):  
Flux Transfer Events ◽  
Flux Transfer

scholarly journals The Influence of IMF Clock Angle on Dayside Flux Transfer Events at Mercury

2017 ◽  
Vol 44 (21) ◽  
Author(s):  
Roger P. Leyser ◽  
Suzanne M. Imber ◽  
Stephen E. Milan ◽  
James A. Slavin
Keyword(s):  
Flux Transfer Events ◽  
Flux Transfer ◽  
Imf Clock Angle

Plasma and magnetic field characteristics of magnetic flux transfer events

1982 ◽  
Vol 87 (A4) ◽  
pp. 2159 ◽  
Author(s):  
G. Paschmann ◽  
G. Haerendel ◽  
I. Papamastorakis ◽  
N. Sckopke ◽  
S. J. Bame ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Flux Transfer Events ◽  
Flux Transfer

scholarly journals Structure and evolution of flux transfer events near dayside magnetic reconnection dissipation region: MMS observations

2017 ◽  
Vol 44 (12) ◽  
pp. 5951-5959 ◽  
Author(s):  
X.-C. Dong ◽  
M. W. Dunlop ◽  
K. J. Trattner ◽  
T. D. Phan ◽  
H.-S. Fu ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Flux Transfer Events ◽  
Flux Transfer

THEMIS observations of the dayside traveling compression region and flows surrounding flux transfer events

2008 ◽  
Vol 35 (17) ◽  
Author(s):  
J. Liu ◽  
V. Angelopoulos ◽  
D. Sibeck ◽  
T. Phan ◽  
Z. Y. Pu ◽  
...  
Keyword(s):  
Flux Transfer Events ◽  
Compression Region ◽  
Flux Transfer

scholarly journals The magnetic and plasma structure of flux transfer events

1999 ◽  
Vol 104 (A1) ◽  
pp. 233-245 ◽  
Author(s):  
G. Le ◽  
J. T. Gosling ◽  
C. T. Russell ◽  
R. C. Elphic ◽  
M. F. Thomsen ◽  
...  
Keyword(s):  
Plasma Structure ◽  
Flux Transfer Events ◽  
Flux Transfer
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