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A. J. Somogyi
Researcher at Hungarian Academy of Sciences
Publications - 29
Citations - 506
A. J. Somogyi is an academic researcher from Hungarian Academy of Sciences. The author has contributed to research in topics: Halley's Comet & Comet. The author has an hindex of 10, co-authored 28 publications receiving 500 citations.
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Journal ArticleDOI
First in situ plasma and neutral gas measurements at comet Halley
K. I. Gringauz,Tamas I. Gombosi,A. P. Remizov,I. Apathy,I. Szemerey,M. I. Verigin,L. I. Denchikova,A. V. Dyachkov,E. Keppler,I. N. Klimenko,A. K. Richter,A. J. Somogyi,Karoly Szego,S. Szendrö,M. Tátrallyay,András Varga,G. A. Vladimirova +16 more
TL;DR: The first in situ observations and a description of the large-scale behavior of comet Halley's plasma environment were presented in this paper. But the results of the experiments were limited.
Journal ArticleDOI
First observations of energetic particles near comet Halley
A. J. Somogyi,K. I. Gringauz,Karoly Szego,László Szabó,Gy Kozma,A. P. Remizov,J. Ero,I. N. Klimenko,I. T. Szücs,M. I. Verigin,J. Windberg,Thomas E. Cravens,A. V. Dyachkov,G. Erdös,M. Farago,Tamas I. Gombosi,Karoly Kecskemety,E. Keppler,T. Kovács,A. Kondor,Yu. I. Logachev,L. Lohonyai,R. Marsden,R. Redl,A. K. Richter,V. G. Stolpovskii,Judit Szabó,I. Szentpétery,A. Szepesváry,M. Tátrallyay,András Varga,G. A. Vladimirova,K. P. Wenzel,A. Zarandy +33 more
TL;DR: The TUNDE-M energetic particle instrument aboard the Vega 1 spacecraft detected intense fluxes of energetic (≥40 keV) ions in the vicinity of comet Halley, starting at a distance of 107 km from closest approach.
Journal ArticleDOI
Coronal and interplanetary transport of solar energetic protons and electrons
G. Wibberenz,Karoly Kecskemety,H. Kunow,A. J. Somogyi,B. Iwers,Yu. I. Logachev,V. G. Stolpovskii +6 more
TL;DR: In this article, a method to separate interplanetary and coronal propagation, starting from intensity variations observed by spaceprobes at different heliolongitudes, is presented, where a decrease in absolute intensities is observed simultaneously with an increase in temporal delays.
Journal ArticleDOI
Energetic ions in the close environment of Mars and particle shadowing by the planet
V. V. Afonin,S. McKenna-Lawlor,K. I. Gringauz,Karoly Kecskemety,E. Keppler,E. Kirsch,A. K. Richter,D. O'Sullivan,A. J. Somogyi,A. Thompson,András Varga,Manfred Witte +11 more
TL;DR: In this paper, a twin-telescope particle-detector system, SLED, aboard Phobos 2 recorded flux enhancements in the range 30-350 keV in the same general location in the close environment of Mars, over eight days at ∼900 km altitude in three successive elliptical orbits.
Journal ArticleDOI
Pickup ions in the unshocked solar wind at comet Halley
Karoly Kecskemety,Thomas E. Cravens,V. V. Afonin,G. Erdös,E. G. Eroshenko,Lu Gan,Tamas I. Gombosi,K. I. Gringauz,E. Keppler,I. N. Klimenko,Richard G. Marsden,Andrew F. Nagy,A. P. Remizov,A. K. Richter,W. Riedler,Konrad Schwingenschuh,A. J. Somogyi,Karoly Szego,Mariella Tatrallyay,András Varga,M. I. Verigin,K.-P. Wenzel +21 more
TL;DR: In this article, the Tunde-M experiment aboard the Vega 1 spacecraft showed that the energetic ion flux begins to increase at a distance of about 10 to 7th km outside Halley's bow shock, with a number of large enhancements superimposed on the general flux level.