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Titolo:
INITIAL OBSERVATIONS OF FINE PLASMA STRUCTURES AT THE FLANK MAGNETOPAUSE WITH THE COMPLEX PLASMA ANALYZER SCA-1 ONBOARD THE INTERBALL-TAIL-PROBE
Autore:
VAISBERG OL; AVANOV LA; SMIRNOV VN; BURCH JL; LEIBOV AW; IVANOVA EB; WAITE JH; KLIMASHEV AA; KHAZANOV BI; CHERKASHIN II; IOVLEV MV; SAFRONOV AY; KOZHUKHOVSKY AI; GURGIOLO C; LICHTENSTEIN VH;
Indirizzi:
RUSSIAN ACAD SCI,SPACE RES INST,84-32 PROFSOYUZNAYA STR MOSCOW 117810RUSSIA STATE RES INST SCI INSTRUMENTAT MOSCOW 123060 RUSSIA SW RES INST SAN ANTONIO TX 78228 KURCHATOV INST MOSCOW RUSSIA
Titolo Testata:
Annales geophysicae
fascicolo: 5, volume: 15, anno: 1997,
pagine: 570 - 586
SICI:
0992-7689(1997)15:5<570:IOOFPS>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
KELVIN-HELMHOLTZ INSTABILITY; LATITUDE BOUNDARY-LAYER; MAGNETIC-FIELD CHARACTERISTICS; MAGNETOSPHERIC BOUNDARY; DAYSIDE MAGNETOPAUSE; AMPTE/IRM OBSERVATIONS; 3-DIMENSIONAL PLASMA; MAGNETOTAIL BOUNDARY; EARTHS MAGNETOPAUSE; WIND SPACECRAFT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
64
Recensione:
Indirizzi per estratti:
Citazione:
O.L. Vaisberg et al., "INITIAL OBSERVATIONS OF FINE PLASMA STRUCTURES AT THE FLANK MAGNETOPAUSE WITH THE COMPLEX PLASMA ANALYZER SCA-1 ONBOARD THE INTERBALL-TAIL-PROBE", Annales geophysicae, 15(5), 1997, pp. 570-586

Abstract

The fast plasma analyzer EU-1 of the SCA-1 complex plasma spectrometer is installed onboard the Interball Tail Probe (Interball-1). It provides fast three-dimensional measurements of the ion distribution function on the low-spin-rate Prognoz satellite (about 2min). The EU-1 ion spectrometer with virtual aperture consists of two detectors with 16 E/Q marrow-angle analyzers and electrostatic scanners. This configuration allows one to measure the ion distribution function in three dimensions (over 15 energy steps in 50 eV/Q=5.0 keV/Q energy range in 64 directions) in 7.5 s, which makes it independent of the slow rotation speed of the satellite. A description of the instrument and its capabilities is given. We present here the preliminary results of measurements of ions for two cases of the dawn low- and mid-latitude magnetopause crossings. The properties of observed ion structures and their tentative explanation are presented. The 12 September 1995 pass at low latitude at about 90 degrees solar-zenith angle on the dawn side of the magnetosphere is considered in more detail. Dispersive ions are seen at theedge of the magnetopause and at the edges of subsequently observed plasma structures. Changes in ion velocity distribution in plasma structures observed after the first magnetopause crossings may be plasma blobs penetrating the magnetosphere. Observed variations of plasma parameters near magnetopause structures suggest nonstationary reconnection as the most probable mechanism for observed structures.

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Documento generato il 28/09/20 alle ore 15:40:52