Statistical analysis of diffuse ion events upstream of the Earth's bow shock

1994 ◽  
Vol 99 (A7) ◽  
pp. 13389 ◽  
Author(s):  
K. J. Trattner ◽  
E. Möbius ◽  
M. Scholer ◽  
B. Klecker ◽  
M. Hilchenbach ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Bow Shock ◽  
Earth’S Bow Shock

scholarly journals Spatial distribution of upstream magnetospheric ≥50 keV ions

2000 ◽  
Vol 18 (1) ◽  
pp. 42-46 ◽  
Author(s):  
G. C. Anagnostopoulos ◽  
G. Argyropoulos ◽  
G. Kaliabetsos
Keyword(s):  
Solar Wind ◽  
Statistical Analysis ◽  
Wind Speed ◽  
Solar Wind Speed ◽  
Bow Shock ◽  
Occurrence Frequency ◽  
Ion Distributions ◽  
Interplanetary Physics ◽  
Earth’S Bow Shock ◽  
Bow Shocks

Abstract. We present for the first time a statistical study of \\geq50 keV ion events of a magnetospheric origin upstream from Earth's bow shock. The statistical analysis of the 50-220 keV ion events observed by the IMP-8 spacecraft shows: (1) a dawn-dusk asymmetry in ion distributions, with most events and lower intensities upstream from the quasi-parallel pre-dawn side (4 LT-6 LT) of the bow shock, (2) highest ion fluxes upstream from the nose/dusk side of the bow shock under an almost radial interplanetary magnetic field (IMF) configuration, and (3) a positive correlation of the ion intensities with the solar wind speed and the index of geomagnetic index Kp, with an average solar wind speed as high as 620 km s-1 and values of the index Kp > 2. The statistical results are consistent with (1) preferential leakage of ~50 keV magnetospheric ions from the dusk magnetopause, (2) nearly scatter free motion of ~50 keV ions within the magnetosheath, and (3) final escape of magnetospheric ions from the quasi-parallel dawn side of the bow shock. An additional statistical analysis of higher energy (290-500 keV) upstream ion events also shows a dawn-dusk asymmetry in the occurrence frequency of these events, with the occurrence frequency ranging between ~16%-~34% in the upstream region.Key words. Interplanetary physics (energetic particles; planetary bow shocks)

Acceleration of solar flare ³He at the Earth's bow shock

1997 ◽  
Vol 24 (1) ◽  
pp. 61-64 ◽  
Author(s):  
J. R. Dwyer ◽  
G. M. Mason ◽  
J. E. Mazur ◽  
T. T. von Rosenvinge
Keyword(s):  
Solar Flare ◽  
Bow Shock ◽  
Earth’S Bow Shock

Stability of electron distributions within the Earth's bow shock

1983 ◽  
Vol 88 (A4) ◽  
pp. 3035 ◽  
Author(s):  
M. F. Thomsen ◽  
H. C. Barr ◽  
S. Peter Gary ◽  
W. C. Feldman ◽  
T. E. Cole
Keyword(s):  
Bow Shock ◽  
Electron Distributions ◽  
Earth’S Bow Shock

Active current sheets near the Earth's bow shock

1988 ◽  
Vol 93 (A10) ◽  
pp. 11295 ◽  
Author(s):  
Steven J. Schwartz ◽  
Ramona L. Kessel ◽  
Cassandra C. Brown ◽  
Les J. C. Woolliscroft ◽  
Malcolm W. Dunlop ◽  
...  
Keyword(s):  
Bow Shock ◽  
Current Sheets ◽  
Earth’S Bow Shock

scholarly journals Global MHD Simulations of the Earth's Bow Shock Shape and Motion Under Variable Solar Wind Conditions

2018 ◽  
Vol 123 (1) ◽  
pp. 259-271 ◽  
Author(s):  
L. Mejnertsen ◽  
J. P. Eastwood ◽  
H. Hietala ◽  
S. J. Schwartz ◽  
J. P. Chittenden
Keyword(s):  
Solar Wind ◽  
Bow Shock ◽  
Mhd Simulations ◽  
Earth’S Bow Shock

scholarly journals Electron dynamics and cross-shock potential at the quasi-perpendicular Earth's bow shock

2007 ◽  
Vol 112 (A9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Bertrand Lefebvre ◽  
Steven J. Schwartz ◽  
Andrew F. Fazakerley ◽  
Pierrette Décréau
Keyword(s):  
Bow Shock ◽  
Electron Dynamics ◽  
Earth’S Bow Shock

WIND observation of gyrating-like ion distributions and low frequency waves upstream from the Earth's bow shock

1997 ◽  
Vol 20 (4-5) ◽  
pp. 703-706 ◽  
Author(s):  
K. Meziane ◽  
C. Mazelle ◽  
C. d'Uston ◽  
H. Rème ◽  
R.P. Lin ◽  
...  
Keyword(s):  
Low Frequency ◽  
Bow Shock ◽  
Wind Observation ◽  
Ion Distributions ◽  
Earth’S Bow Shock ◽  
Low Frequency Waves
Sign in / Sign up

Export Citation Format

Share Document