A külső naprendszer vizsgálata űrszondák segítségével = Investigation of the outer solar system with space probes

A helioszfera tavoli videkeit vizsgaltuk a Cassini, az Ulysses, es a Voyager 1-2 űrszondakon repulő magnetometerek, plazma-detektorok, es energikus reszecskek fluxusat merő berendezesek adatainak kiertekelesevel. A meresi adatokhoz mint tarskutatok es vendegkutatok jutottunk hozza. A nemzetkozi egyuttműkodesben vegzett kutatasok fobb eredmenyei, koztuk uj jelensegek felfedezese es leirasa, modellezessel vegzett szamitasok vegzese, statisztikus vizsgalatok kozul a kovetkezőket tekintjuk jelentősnek: - Lassu modusu lokeshullam felfedezese a Jupiter magneses kopenyeben - „Hot Flow” anomalia felfedezese a Szaturnusz fejhullama előtt - Uj tipusu hullam-gerjesztes modellezese a Titan es Venusz ionoszferajaban - Titan plazmakornyezetenek osszehasonlito vizsgalata a megkozelitesek soran - Szaturnusz eredetű, „fosszilis” magneses ter felfedezese a Titan kozeleben - Enceladusbol szarmazo por dinamikajanak es az E gyűrű keletkezesenek modellezese - Jupiter halvany gyűrűjenek modellezese - MHD szakadasi feluletek gyakorisaganak es geometriajanak statisztikus vizsgalata a helioszferaban - A helioszfera ketfele magneses polaritasat elvalaszto aramlepel eszak-deli aszimmetriaja - Energikus reszecskek terjedesenek vizsgalata nagyszamu esemeny alapjan. | The distant regions of the heliosphere was investigated by the analysis of the data of magnetometers, plasma detectors, and energetic particle flux detectors, flown onboard the space probes Cassini, Ulysses, and Voyager 1-2. We acquired the scientific data as co-investigators and guest-investigators of the measurements. Among the main results of the research carried out in international collaborations, including discoveries and descriptions of new phenonmena, model calculations, statistical studies, we consider the most important ones as the following: - Discovery of slow mode shock in the Jovian magnetosheath - Discovery of hot flow anomaly upstream of the bow shock of Saturn - Modelling new type of wave excitation in the ionosphere of Titan and Venus - Comparative studies of the plasma environment of Titan during the encounters - Discovery of fossil magnetic field near Titan, originating from Saturn - Study of the dynamics of dust, originating from Enceladus and modelling the origin of E-ring - Modelling the faint ring of Jupiter - Statistical investigation of the rate and geometrical properties of MHD discontinuities in the heliosphere - North-south asymmetry of the current sheet separating the opposite magnetic polarities of the heliosphere - Investigation of the propagation of energetic particles, based on large number of events.