Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer

N. M. Shutte, P. Király, T. E. Cravens, A. V. Dyachkov, T. I. Gombos, K. I. Gringuaz, A. F. Nagy, W. E. Sharp, S. M. Sheronova, K. Szegö, T. Szemerey, I. T. Szũcs, M. Tátrallyay, A. Tóth, M. Verigin

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

THE highly elliptical orbits of the Phobos 2 spacecraft, early in February 1989, proved particularly useful for plasma and field investigations of the martian environment. The low-altitude (∼ 860 km) pericentres and the deep penetration into the magnetotail provided excellent opportunities to explore new and important regions. Here we present preliminary results of electron and ion measurements in the vicinity of Mars with the hyperbolic analyser in the retarding potential mode (HARP). HARP is a differential electrostatic analyser, simultaneously covering eight directions arranged in a fan-shaped geometry, in the anti-solar hemisphere. The angular resolution is ∼20°, the energy resolution ∼10%. During the first two elliptical orbits, to be discussed here, electrons from 3.4 to 550 eV and ions from 0.25 to 550 eV were measured in 25 and 50 logarithmic energy steps, respectively. The energy distribution of electrons in the magnetosheath was found to be generally characterized by two distinct peaks. A fairly hot electron component was discovered in the plasma sheet of the areo-magnetic tail.

Original languageEnglish
Pages (from-to)614-616
Number of pages3
JournalNature
Volume341
Issue number6243
Publication statusPublished - 1989

Fingerprint

electron flux
mars
elliptical orbits
retarding
spectrometers
Phobos
ions
magnetosheath
magnetotails
electrons
low altitude
hemispheres
angular resolution
fans
hot electrons
energy distribution
spacecraft
coverings
penetration
electrostatics

ASJC Scopus subject areas

  • General

Cite this

Shutte, N. M., Király, P., Cravens, T. E., Dyachkov, A. V., Gombos, T. I., Gringuaz, K. I., ... Verigin, M. (1989). Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer. Nature, 341(6243), 614-616.

Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer. / Shutte, N. M.; Király, P.; Cravens, T. E.; Dyachkov, A. V.; Gombos, T. I.; Gringuaz, K. I.; Nagy, A. F.; Sharp, W. E.; Sheronova, S. M.; Szegö, K.; Szemerey, T.; Szũcs, I. T.; Tátrallyay, M.; Tóth, A.; Verigin, M.

In: Nature, Vol. 341, No. 6243, 1989, p. 614-616.

Research output: Contribution to journalArticle

Shutte, NM, Király, P, Cravens, TE, Dyachkov, AV, Gombos, TI, Gringuaz, KI, Nagy, AF, Sharp, WE, Sheronova, SM, Szegö, K, Szemerey, T, Szũcs, IT, Tátrallyay, M, Tóth, A & Verigin, M 1989, 'Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer', Nature, vol. 341, no. 6243, pp. 614-616.
Shutte NM, Király P, Cravens TE, Dyachkov AV, Gombos TI, Gringuaz KI et al. Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer. Nature. 1989;341(6243):614-616.
Shutte, N. M. ; Király, P. ; Cravens, T. E. ; Dyachkov, A. V. ; Gombos, T. I. ; Gringuaz, K. I. ; Nagy, A. F. ; Sharp, W. E. ; Sheronova, S. M. ; Szegö, K. ; Szemerey, T. ; Szũcs, I. T. ; Tátrallyay, M. ; Tóth, A. ; Verigin, M. / Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer. In: Nature. 1989 ; Vol. 341, No. 6243. pp. 614-616.
@article{20fb90b3b32b41eca126836c52c8b5e4,
title = "Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer",
abstract = "THE highly elliptical orbits of the Phobos 2 spacecraft, early in February 1989, proved particularly useful for plasma and field investigations of the martian environment. The low-altitude (∼ 860 km) pericentres and the deep penetration into the magnetotail provided excellent opportunities to explore new and important regions. Here we present preliminary results of electron and ion measurements in the vicinity of Mars with the hyperbolic analyser in the retarding potential mode (HARP). HARP is a differential electrostatic analyser, simultaneously covering eight directions arranged in a fan-shaped geometry, in the anti-solar hemisphere. The angular resolution is ∼20°, the energy resolution ∼10{\%}. During the first two elliptical orbits, to be discussed here, electrons from 3.4 to 550 eV and ions from 0.25 to 550 eV were measured in 25 and 50 logarithmic energy steps, respectively. The energy distribution of electrons in the magnetosheath was found to be generally characterized by two distinct peaks. A fairly hot electron component was discovered in the plasma sheet of the areo-magnetic tail.",
author = "Shutte, {N. M.} and P. Kir{\'a}ly and Cravens, {T. E.} and Dyachkov, {A. V.} and Gombos, {T. I.} and Gringuaz, {K. I.} and Nagy, {A. F.} and Sharp, {W. E.} and Sheronova, {S. M.} and K. Szeg{\"o} and T. Szemerey and Szũcs, {I. T.} and M. T{\'a}trallyay and A. T{\'o}th and M. Verigin",
year = "1989",
language = "English",
volume = "341",
pages = "614--616",
journal = "Nature",
issn = "0028-0836",
publisher = "Nature Publishing Group",
number = "6243",

}

TY - JOUR

T1 - Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer

AU - Shutte, N. M.

AU - Király, P.

AU - Cravens, T. E.

AU - Dyachkov, A. V.

AU - Gombos, T. I.

AU - Gringuaz, K. I.

AU - Nagy, A. F.

AU - Sharp, W. E.

AU - Sheronova, S. M.

AU - Szegö, K.

AU - Szemerey, T.

AU - Szũcs, I. T.

AU - Tátrallyay, M.

AU - Tóth, A.

AU - Verigin, M.

PY - 1989

Y1 - 1989

N2 - THE highly elliptical orbits of the Phobos 2 spacecraft, early in February 1989, proved particularly useful for plasma and field investigations of the martian environment. The low-altitude (∼ 860 km) pericentres and the deep penetration into the magnetotail provided excellent opportunities to explore new and important regions. Here we present preliminary results of electron and ion measurements in the vicinity of Mars with the hyperbolic analyser in the retarding potential mode (HARP). HARP is a differential electrostatic analyser, simultaneously covering eight directions arranged in a fan-shaped geometry, in the anti-solar hemisphere. The angular resolution is ∼20°, the energy resolution ∼10%. During the first two elliptical orbits, to be discussed here, electrons from 3.4 to 550 eV and ions from 0.25 to 550 eV were measured in 25 and 50 logarithmic energy steps, respectively. The energy distribution of electrons in the magnetosheath was found to be generally characterized by two distinct peaks. A fairly hot electron component was discovered in the plasma sheet of the areo-magnetic tail.

AB - THE highly elliptical orbits of the Phobos 2 spacecraft, early in February 1989, proved particularly useful for plasma and field investigations of the martian environment. The low-altitude (∼ 860 km) pericentres and the deep penetration into the magnetotail provided excellent opportunities to explore new and important regions. Here we present preliminary results of electron and ion measurements in the vicinity of Mars with the hyperbolic analyser in the retarding potential mode (HARP). HARP is a differential electrostatic analyser, simultaneously covering eight directions arranged in a fan-shaped geometry, in the anti-solar hemisphere. The angular resolution is ∼20°, the energy resolution ∼10%. During the first two elliptical orbits, to be discussed here, electrons from 3.4 to 550 eV and ions from 0.25 to 550 eV were measured in 25 and 50 logarithmic energy steps, respectively. The energy distribution of electrons in the magnetosheath was found to be generally characterized by two distinct peaks. A fairly hot electron component was discovered in the plasma sheet of the areo-magnetic tail.

UR - http://www.scopus.com/inward/record.url?scp=0000746277&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000746277&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000746277

VL - 341

SP - 614

EP - 616

JO - Nature

JF - Nature

SN - 0028-0836

IS - 6243

ER -