interball project
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2011 ◽  
Vol 29 (8) ◽  
pp. 1439-1454 ◽  
Author(s):  
V. N. Lutsenko ◽  
E. A. Gavrilova

Abstract. Beams of Almost Monoenergetic Ions (AMI) in the energy range from 20 to 800 keV were discovered in the DOK-2 experiment (Interball project) in the magnetosheath and upstream of the Earth's bow shock. This work summarizes the analysis results of ~730 AMI events registered in 1995–2000. Statistics of AMI properties, their nature and origin are considered. The analysis of a large array of new data confirmed our earlier suggested ideas on the AMI nature, origin, and their acceleration model. These ideas were further developed and refined. According to this model, AMI are a result of solar wind ions acceleration in small regions with a potential electric field arising due to disruptions of the bow shock current sheet filaments. It has been found that the reason of the current filaments disruptions in most cases was the Hot Flow Anomaly phenomenon (HFA) caused by an interaction of a tangential discontinuity in the solar wind with the Earth's bow shock. It is shown that the study of AMI can provide new information on large-scale properties and dynamics of the bow shock current sheet.


2003 ◽  
Vol 31 (5) ◽  
pp. 1377-1382 ◽  
Author(s):  
J Šafránková ◽  
K Jelínek ◽  
Z Němeček

2002 ◽  
Vol 20 (3) ◽  
pp. 289-291
Author(s):  
L. Zelenyi ◽  
J.-A. Sauvaud


2000 ◽  
Vol 46 (2-6) ◽  
pp. 405-414
Author(s):  
Nathan A. Eismont ◽  
Vladimir V. Khrapchenkov ◽  
Pavel Tříska ◽  
Vladimír Truhlík ◽  
Jaroslav Chum

1997 ◽  
Vol 15 (5) ◽  
pp. 562-569 ◽  
Author(s):  
J. Safrankova ◽  
G. Zastenker ◽  
Z. Nemecek ◽  
A. Fedorov ◽  
M. Simersky ◽  
...  

Abstract. Two satellites of the INTERBALL project were launched on 3 August 1995. The main goals of the present paper are (1) to give a brief information about the VDP plasma device onboard the INTERBALL-1 satellite, (2) to present the Faradays cup data taken in different magnetospheric regions and (3) to expose first results of the two satellite measurements of the magnetopause motion. The presented data illustrate magnetopause crossings as seen by two satellites when separated by about ~ 1000 km. This separation combined with the Faraday's cup time resolution allows to estimate the velocity of the magnetopause and to reconstruct a possible structure of the boundary. Simultaneous measurement of the magnetic field supports the interpretation of the observed ion fluxes as a signature of the wavy motion of the boundary.


1997 ◽  
Vol 15 (5) ◽  
pp. 542-552 ◽  
Author(s):  
I. Sandahl ◽  
S. Barabash ◽  
H. Borg ◽  
E. Yu. Budnik ◽  
E. M. Dubinin ◽  
...  

Abstract. PROMICS-3 is a plasma experiment flown in the Russian project Interball. It performs three-dimensional (3D) measurements of ions in the energy range 4 eV–70 keV with mass separation and of electrons in the energy range 12 eV–35 keV. The Interball project consists of two main satellites, the Tail Probe and the Auroral Probe, each with one subsatellite. The Interball Tail Probe was launched on 3 August 1995, into a 65° inclination orbit with apogee at about 30 RE. Both main satellites carry identical PROMICS-3 instruments and thus direct comparisons of the particle distributions will be possible once the Auroral Probe is launched. Furthermore, PROMICS-3-Tail is the first instrument measuring the 3D ion distribution function in the magnetospheric boundary layers at high latitudes. In this paper we describe the PROMICS-3 instrument and show initial results from the Tail probe, measurements of the magnetosheath, plasma sheet, and ring current plasmas.


1997 ◽  
Vol 15 (5) ◽  
pp. 553-561 ◽  
Author(s):  
Z. Nemecek ◽  
A. Fedorov ◽  
J. Safrankova ◽  
G. Zastenker

Abstract. The aims of this paper are (1) briefly to describe the plasma devices onboard the MAGION-4 satellite, launched on 3 August 1995, of the INTERBALL project, and (2) to discuss first observations made near the magnetopause region. During the presented boundary crossings the MAGION-4 observed quasi-periodic pulses of magnetosheath-like plasma in a region of low plasma density. This region is located just earthwards of the magnetopause and is populated by a plasma which, except for the density, has the same parameters as in the magnetosheath. Deeper in the magnetosphere, the encounter of a layer of hot electrons and high-energy ions was interpreted as low-latitude boundary layer.


1997 ◽  
Vol 20 (4-5) ◽  
pp. 801-807 ◽  
Author(s):  
J. Šafránková ◽  
Z. Němeček ◽  
L. Přech ◽  
G. Zastenker ◽  
A. Fedorov ◽  
...  
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