Publications
215 results found
HORBURY TS, BALOGH A, FORSYTH RJ, et al., 1995, ANISOTROPY OF INERTIAL RANGE TURBULENCE IN THE POLAR HELIOSPHERE, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3405-3408, ISSN: 0094-8276
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- Citations: 38
LIN NG, KELLOGG PJ, MACDOWALL RJ, et al., 1995, OBSERVATIONS OF PLASMA-WAVES IN MAGNETIC HOLES, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3417-3420, ISSN: 0094-8276
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- Citations: 37
PIERRE F, SOLOMON J, CORNILLEAUWEHRLIN N, et al., 1995, WHISTLER-MODE WAVE GENERATION AROUND INTERPLANETARY SHOCKS IN AND OUT OF THE ECLIPTIC-PLANE, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3425-3428, ISSN: 0094-8276
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- Citations: 8
SMITH EJ, BALOGH A, BURTON ME, et al., 1995, RESULTS OF THE ULYSSES FAST LATITUDE SCAN - MAGNETIC-FIELD OBSERVATIONS, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3325-3328, ISSN: 0094-8276
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- Citations: 49
GOSLING JT, FELDMAN WC, MCCOMAS DJ, et al., 1995, ULYSSES OBSERVATIONS OF OPPOSED TILTS OF SOLAR-WIND COROTATING INTERACTION REGIONS IN THE NORTHERN AND SOUTHERN SOLAR HEMISPHERES, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3333-3336, ISSN: 0094-8276
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- Citations: 31
FORSYTH RJ, BALOGH A, SMITH EJ, et al., 1995, THE UNDERLYING MAGNETIC-FIELD DIRECTION IN ULYSSES OBSERVATIONS OF THE SOUTHERN POLAR HELIOSPHERE, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3321-3324, ISSN: 0094-8276
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- Citations: 39
HORBURY TS, BALOGH A, FORSYTH RJ, et al., 1995, OBSERVATIONS OF EVOLVING TURBULENCE IN THE POLAR SOLAR-WIND, GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 3401-3404, ISSN: 0094-8276
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- Citations: 51
MOLDWIN MB, PHILLIPS JL, GOSLING JT, et al., 1995, ULYSSES OBSERVATION OF A NONCORONAL MASS EJECTION FLUX ROPE - EVIDENCE OF INTERPLANETARY MAGNETIC RECONNECTION, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 100, Pages: 19903-19910, ISSN: 2169-9380
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- Citations: 83
MCCOMAS DJ, BARRACLOUGH BL, GOSLING JT, et al., 1995, STRUCTURES IN THE POLAR SOLAR-WIND - PLASMA AND FIELD OBSERVATIONS FROM ULYSSES, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 100, Pages: 19893-19902, ISSN: 2169-9380
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- Citations: 60
Balogh A, Southwood DJ, Forsyth RJ, et al., 1995, The heliospheric magnetic field over the South polar region of the sun., Science, Vol: 268, Pages: 1007-1010, ISSN: 0036-8075
Magnetic field measurements from the Ulysses space mission overthe south polar regions of the sun showed that the structure and properties of the three-dimensional heliosphere were determined by the fast solar wind flow and magnetic fields from the large coronal holes in the polar regions of the sun. This conclusion applies at the current, minimum phase of the 11-year solar activity cycle. Unexpectedly, the radial component of the magnetic field was independent of latitude. The high-latitude magnetic field deviated significantly from the expected Parker geometry, probably because of large amplitude transverse fluctuations. Low-frequency fluctuations had a high level of variance. The rate of occurrence of discontinuities also increased significantly at high latitudes.
BALOGH A, SMITH EJ, TSURUTANI BT, et al., 1995, THE HELIOSPHERIC MAGNETIC-FIELD OVER THE SOUTH POLAR-REGION OF THE SUN, SCIENCE, Vol: 268, Pages: 1007-1010, ISSN: 0036-8075
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- Citations: 253
Reiner MJ, Anderson KA, Roelof E, et al., 1995, Ulysses/Galileo observations of type III radio bursts and associated in-situ electrons and Langmuir waves, Space Science Reviews, Vol: 72, Pages: 261-266, ISSN: 0038-6308
Both the Ulysses and Galileo spacecraft detected energetic electrons and Langmuir waves that were associated with a type III radio burst on 10 December 1990. At the time of these observations, these spacecraft were in the ecliptic plane and separated by 0.4 AU, with Galileo near the Earth at 1 AU and Ulysses at 1.36 AU. From the measured electron arrival times, the propagation path lengths of the electrons to both Ulysses and Galileo were estimated to be significantly longer than the length of the Parker spiral. These long path lengths are interpreted as due to draping of the interplanetary magnetic field lines around a CME. The onset times of the Langmuir waves at Ulysses and Galileo coincided with the estimated arrival time of the 9 keV and 14 keV electrons, respectively. © 1995 Kluwer Academic Publishers.
McComas DJ, Gosling JT, Hammond CM, et al., 1995, Reconnection on open field lines ahead of coronal mass ejections, Pages: 129-132, ISSN: 0038-6308
Plasma and magnetic field signatures from 29 November 1990 indicate that the Ulysses spacecraft passed through a series of interplanetary structures that were most likely formed by magnetic reconnection on open field lines ahead of a coronal mass ejection (CME). This reconnection changed the magnetic topology of the upstream region by converting normal open interplanetary magnetic field into a pair of regions: one magnetically disconnected from the Sun and the other, a tongue, connected back to the Sun at both ends. This process provides a new method for producing both heat flux dropouts and counterstreaming suprathermal electron signatures in interplanetary space. In this paper we expand upon the 29 November case study and argue that reconnection ahead of CMEs should be less common at high heliolatitudes. © 1995 Kluwer Academic Publishers.
Phillips JL, Bame SJ, Gary SP, et al., 1995, Radial and meridional trends in solar wind thermal electron temperature and anisotropy: Ulysses, Pages: 109-112, ISSN: 0038-6308
Ulysses plasma measurement from 1.15 to 5.31 AU and from S6.4° to S48.3° solar latitude are used to assess the trends in the solar wind thermal electron temperature and anisotropy. Improved spacecraft potential corrections and data products have been incorporated. The radial temperature gradient is steeper than in previous determinations, but flatter than adiabatic. When normalized to 1 AU, temperature decrease with increasing latitude. Little change in the average thermal anisotropy has been seen during the mission. © 1995 Kluwer Academic Publishers.
RILEY P, SONETT CP, BALOGH A, et al., 1995, ALFVENIC FLUCTUATIONS IN THE SOLAR-WIND - A CASE-STUDY USING ULYSSES MEASUREMENTS, Publisher: SPRINGER, Pages: 197-200, ISSN: 0038-6308
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- Citations: 12
SANDERSON TR, MARSDEN RG, WENZEL KP, et al., 1995, HIGH-LATITUDE OBSERVATIONS OF ENERGETIC IONS DURING THE FIRST ULYSSES POLAR PASS, Publisher: SPRINGER, Pages: 291-296, ISSN: 0038-6308
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- Citations: 17
FORSYTH RJ, 1995, THE HIGH-LATITUDE HELIOSPHERIC MAGNETIC-FIELD, Publisher: SPRINGER, Pages: 153-163, ISSN: 0038-6308
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- Citations: 16
BALOGH A, GONZALEZESPARZA JA, FORSYTH RJ, et al., 1995, INTERPLANETARY SHOCK-WAVES - ULYSSES OBSERVATIONS IN AND OUT OF THE ECLIPTIC-PLANE, Publisher: SPRINGER, Pages: 171-180, ISSN: 0038-6308
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- Citations: 96
MCCOMAS DJ, GOSLING JT, HAMMOND CM, et al., 1995, RECONNECTION ON OPEN-FIELD LINES AHEAD OF CORONAL MASS EJECTIONS, Publisher: SPRINGER, Pages: 129-132, ISSN: 0038-6308
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- Citations: 9
REUSS MK, KEPPLER E, FRANZ M, et al., 1995, A PARTICLE EVENT AT 5-AU AND 20-DEGREES-SOUTHERN LATITUDE FROM MEASUREMENTS WITH THE EPAC INSTRUMENT ON ULYSSES, Publisher: SPRINGER, Pages: 343-346, ISSN: 0038-6308
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- Citations: 5
KEPPLER E, FRANZ M, KORTH A, et al., 1995, ENERGETIC PARTICLE OBSERVATIONS AT HIGH HELIOGRAPHIC LATITUDES, Publisher: SPRINGER, Pages: 285-290, ISSN: 0038-6308
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- Citations: 10
PHILLIPS JL, BAME SJ, GARY SP, et al., 1995, RADIAL AND MERIDIONAL TRENDS IN SOLAR-WIND THERMAL ELECTRON-TEMPERATURE AND ANISOTROPY - ULYSSES, Publisher: SPRINGER, Pages: 109-112, ISSN: 0038-6308
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- Citations: 26
SOLOMON J, CORNILLEAUWEHRLIN N, CANU P, et al., 1995, INTERACTION BETWEEN WHISTLER-MODE WAVES AND ELECTRONS IN THE VICINITY OF INTERPLANETARY SHOCKS AS SEEN BY ULYSSES - A PRELIMINARY-STUDY, Publisher: SPRINGER, Pages: 181-184, ISSN: 0038-6308
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- Citations: 3
BUTTIGHOFFER A, PICK M, ROELOF EC, et al., 1995, CORONAL ELECTRON STREAM AND LANGMUIR WAVE DETECTION INSIDE A PROPAGATION CHANNEL AT 4.3 AU, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 100, Pages: 3369-3381, ISSN: 2169-9380
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- Citations: 17
Gosling JT, McComas DJ, Phillips JL, et al., 1995, A CME‐driven solar wind disturbance observed at both low and high heliographic latitudes, Geophysical Research Letters, Vol: 22, Pages: 1753-1756, ISSN: 0094-8276
A solar wind disturbance produced by a fast coronal mass ejection, CME, that departed from the Sun on Feburary 20, 1994 was observed in the ecliptic plane at 1 AU by IMP 8 and at high heliographic latitudes at 3.53 AU by Ulysses. In the ecliptic the disturbance included a strong forward shock but no reverse shock, while at high latitudes the disturbance was bounded by a relatively weak forward‐reverse shock pair. It is clear that the disturbance in the ecliptic plane was driven primarily by the relative speed between the CME and a slower ambient solar wind ahead, whereas at higher latitudes the disturbance was driven by expansion of the CME. The combined IMP 8 and Ulysses observations thus provide a graphic illustration of how a single fast CME can produce very different types of solar wind disturbances at low and high heliographic latitudes. Simple numerical simulations help explain observed differences at the two spacecraft. Copyright 1995 by the American Geophysical Union.
HORBURY T, BALOGH A, FORSYTH RJ, et al., 1995, ULYSSES MAGNETIC-FIELD OBSERVATIONS OF FLUCTUATIONS WITHIN POLAR CORONAL FLOWS, ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES, Vol: 13, Pages: 105-107, ISSN: 0992-7689
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- Citations: 25
Lim TL, Quenby JJ, Reuss MK, et al., 1995, Can diffusive shock acceleration work fast enough in interplanetary shocks? Evidence from the November 1992 event, Urbino, 24th international cosmic ray conference (xxiv icrc) AUG 28-SEP 08, 1995 ROME, ITALY, Publisher: Argalia Editore Delle Arti Grafiche Editoriali Srl, Pages: 353-356
Keppler E, Franz M, Korth A, et al., 1995, Energetic particle observations at high heliographic latitudes, Space Science Reviews, Vol: 72, Pages: 285-290, ISSN: 0038-6308
Baring MG, Ogilvie KW, Ellison DC, et al., 1995, Acceleration of solar wind ions by oblique interplanetary shocks, D2.1 Symposium Symposium of COSPAR Scientific Commission D on Physics of Collisionless Shocks, at the 30th COSPAR Scientific Assembly, Publisher: PERGAMON PRESS LTD, Pages: 385-388, ISSN: 0273-1177
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- Citations: 4
Hoang S, Lacombe C, Mangeney A, et al., 1995, Interplanetary shocks observed by Ulysses in the ecliptic plane as a function of the heliocentric distance, D2.1 Symposium Symposium of COSPAR Scientific Commission D on Physics of Collisionless Shocks, at the 30th COSPAR Scientific Assembly, Publisher: PERGAMON PRESS LTD, Pages: 371-374, ISSN: 0273-1177
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- Citations: 10
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