Publications
224 results found
Phan TD, Shay MA, Gosling JT, et al., 2013, Electron bulk heating in magnetic reconnection at Earth's magnetopause: Dependence on the inflow Alfven speed and magnetic shear, GEOPHYSICAL RESEARCH LETTERS, Vol: 40, Pages: 4475-4480, ISSN: 0094-8276
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- Citations: 90
Carr J, Cassak PA, Galante M, et al., 2013, Spontaneous ion beam formation in the laboratory, space, and simulation, PHYSICS OF PLASMAS, Vol: 20, ISSN: 1070-664X
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- Citations: 15
Eastwood JP, Phan TD, Drake JF, et al., 2013, Energy Partition in Magnetic Reconnection in Earth's Magnetotail, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 67
Zhong J, Pu ZY, Dunlop MW, et al., 2013, Three-dimensional magnetic flux rope structure formed by multiple sequential X-line reconnection at the magnetopause, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 118, Pages: 1904-1911, ISSN: 2169-9380
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- Citations: 40
Archer MO, Horbury TS, Eastwood JP, et al., 2013, Magnetospheric response to magnetosheath pressure pulses: A low pass filter effect, Journal of Geophysical Research, Vol: 118, Pages: 5454-5466
Abstract. We present observations from the magnetopause to the ground during periods of large amplitude, transient dynamic pressure pulses in the magnetosheath. While individual magnetosheath pulses are sharp and impulsive, the magnetospheric response is much smoother with frequencies in the Pc5-6 range being excited in the compressional and poloidal components of the magnetic field. We show that the magnetopause acts like a low pass filter, suppressing timescales shorter than a few minutes. Further filtering appears to occur locally within the magnetosphere, which may be due to the unusual field line resonance frequency profile on this day. Ground magnetometer and radar data along with equivalent ionospheric currents show signatures of travelling convection vortices, similar to the response from pressure variations of solar wind origin. However, the signatures are associated with groups of magnetosheath pulses rather than individual ones due to the impulsive nature of the pressure variations. Thus the scale-dependent magnetospheric response to these transient pressure variations, results in coherent signatures on longer timescales than any individual pulse.
Moestl C, Farrugia CJ, Kilpua EKJ, et al., 2012, MULTI-POINT SHOCK AND FLUX ROPE ANALYSIS OF MULTIPLE INTERPLANETARY CORONAL MASS EJECTIONS AROUND 2010 AUGUST 1 IN THE INNER HELIOSPHERE, ASTROPHYSICAL JOURNAL, Vol: 758, ISSN: 0004-637X
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- Citations: 93
Eastwood JP, Phan TD, Fear RC, et al., 2012, Survival of flux transfer event (FTE) flux ropes far along the tail magnetopause, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 117, ISSN: 2169-9380
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- Citations: 37
Archer MO, Horbury TS, Eastwood JP, 2012, Magnetosheath pressure pulses: Generation downstream of the bow shock from solar wind discontinuities, Journal of Geophyical Research, Vol: 117, ISSN: 0148-0227
We present multipoint Time History of Events and Macroscale Interactions duringSubstorms (THEMIS) observations of transient dynamic pressure pulses in themagnetosheath 3–10 times the background in amplitude, due to enhancements in both theion density and velocity. Their spatial dimensions are of the order of 1 RE parallel tothe flow and 0.2–0.5 RE perpendicular to it, inferred from the difference in theamplitudes observed by the different spacecraft. For the first time, simultaneousobservations of the solar wind and foreshock are also shown, proving no similar dynamicpressure enhancements exist upstream of the bow shock and that the majority of pulsesare downstream of the quasi-parallel shock. By considering previously suggestedmechanisms for their generation, we show that the pressure pulses cannot be caused byreconnection, hot flow anomalies, or short, large-amplitude magnetic structures andthat at least some of the pressure pulses appear to be consistent with previoussimulations of solar wind discontinuities interacting with the bow shock. Thesesimulations predict large-amplitude pulses when the local geometry of the shock changesfrom quasi-perpendicular to quasi-parallel, while the opposite case should also producenotable pulses but typically of lower amplitude. Therefore, in a given region of themagnetosheath, some of the discontinuities in the solar wind should generate pressurepulses, whereas others are expected not to. There is also evidence that the pulses canimpinge upon the magnetopause, causing its motion.
Harrison RA, Davies JA, Moestl C, et al., 2012, AN ANALYSIS OF THE ORIGIN AND PROPAGATION OF THE MULTIPLE CORONAL MASS EJECTIONS OF 2010 AUGUST 1, ASTROPHYSICAL JOURNAL, Vol: 750, ISSN: 0004-637X
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- Citations: 76
Masters A, Eastwood JP, Swisdak M, et al., 2012, The importance of plasma β conditions for magnetic reconnection at Saturn's magnetopause, GEOPHYSICAL RESEARCH LETTERS, Vol: 39, ISSN: 0094-8276
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- Citations: 96
Temmer M, Vrsnak B, Rollett T, et al., 2012, CHARACTERISTICS OF KINEMATICS OF A CORONAL MASS EJECTION DURING THE 2010 AUGUST 1 CME-CME INTERACTION EVENT, ASTROPHYSICAL JOURNAL, Vol: 749, ISSN: 0004-637X
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- Citations: 114
Branduardi-Raymont G, Sembay SF, Eastwood JP, et al., 2012, AXIOM: advanced X-ray imaging of the magnetosphere, EXPERIMENTAL ASTRONOMY, Vol: 33, Pages: 403-443, ISSN: 0922-6435
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- Citations: 25
Owen CJ, Amm O, Bruno R, et al., 2012, IMPALAS: Investigation of MagnetoPause Activity using Longitudinally-Aligned Satellites-a mission concept proposed for the ESA M3 2020/2022 launch, EXPERIMENTAL ASTRONOMY, Vol: 33, Pages: 365-401, ISSN: 0922-6435
Sembay S, Branduardi-Raymont G, Eastwood JP, et al., 2012, AXIOM: Advanced X-ray imaging of the magnetosheath, ASTRONOMISCHE NACHRICHTEN, Vol: 333, Pages: 388-392, ISSN: 0004-6337
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- Citations: 2
Eastwood JP, Videira JJH, Brain DA, et al., 2012, A chain of magnetic flux ropes in the magnetotail of Mars, GEOPHYSICAL RESEARCH LETTERS, Vol: 39, ISSN: 0094-8276
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- Citations: 23
Borg AL, Taylor MGGT, Eastwood JP, 2012, Electron pitch angle distribution during magnetic reconnection diffusion region observations in the Earth's magnetotail, ANNALES GEOPHYSICAE, Vol: 30, Pages: 109-117, ISSN: 0992-7689
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- Citations: 5
Taylor MGGT, Hasegawa H, Lavraud B, et al., 2012, Spatial distribution of rolled up Kelvin-Helmholtz vortices at Earth's dayside and flank magnetopause, ANNALES GEOPHYSICAE, Vol: 30, Pages: 1025-1035, ISSN: 0992-7689
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- Citations: 57
Borg AL, Taylor MGGT, Eastwood JP, 2012, Observations of magnetic flux ropes during magnetic reconnection in the Earth's magnetotail, ANNALES GEOPHYSICAE, Vol: 30, Pages: 761-773, ISSN: 0992-7689
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- Citations: 44
Sibeck DG, Angelopoulos V, Brain DA, et al., 2011, ARTEMIS Science Objectives, SPACE SCIENCE REVIEWS, Vol: 165, Pages: 59-91, ISSN: 0038-6308
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- Citations: 45
Teh W-L, Nakamura R, Sonnerup BUO, et al., 2011, Evidence of the origin of the Hall magnetic field for reconnection: Hall MHD reconstruction results from Cluster observations, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 116, ISSN: 2169-9380
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- Citations: 18
Oka M, Phan T-D, Eastwood JP, et al., 2011, Magnetic reconnection X-line retreat associated with dipolarization of the Earth's magnetosphere, GEOPHYSICAL RESEARCH LETTERS, Vol: 38, ISSN: 0094-8276
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- Citations: 27
Oieroset M, Phan TD, Eastwood JP, et al., 2011, Direct Evidence for a Three-Dimensional Magnetic Flux Rope Flanked by Two Active Magnetic Reconnection <i>X</i> Lines at Earth's Magnetopause, PHYSICAL REVIEW LETTERS, Vol: 107, ISSN: 0031-9007
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- Citations: 73
Briggs JA, Brain DA, Cartwright ML, et al., 2011, A statistical study of flux ropes in the Martian magnetosphere, PLANETARY AND SPACE SCIENCE, Vol: 59, Pages: 1498-1505, ISSN: 0032-0633
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- Citations: 39
Phan TD, Love TE, Gosling JT, et al., 2011, Triggering of magnetic reconnection in a magnetosheath current sheet due to compression against the magnetopause, GEOPHYSICAL RESEARCH LETTERS, Vol: 38, ISSN: 0094-8276
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- Citations: 28
Eastwood JP, Schwartz SJ, Horbury TS, et al., 2011, Transient Pc3 wave activity generated by a hot flow anomaly: Cluster, Rosetta, and ground-based observations, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 116, ISSN: 2169-9380
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- Citations: 37
Shay MA, Drake JF, Eastwood JP, et al., 2011, Erratum: Super-alfvénic propagation of substorm reconnection signatures and poynting flux (Physical Review Letters (2011) 107 (065001)), Physical Review Letters, Vol: 107, ISSN: 0031-9007
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- Citations: 3
Shay MA, Drake JF, Eastwood JP, et al., 2011, Super-Alfvelnic Propagation of Substorm Reconnection Signatures and Poynting Flux, PHYSICAL REVIEW LETTERS, Vol: 107, ISSN: 0031-9007
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- Citations: 65
Lavraud B, Foullon C, Farrugia CJ, et al., 2011, The Magnetopause, Its Boundary Layers and Pathways to the Magnetotail, The Dynamic Magnetosphere, Editors: Liu, Fujimoto, Publisher: Springer Verlag, Pages: 3-28, ISBN: 9789400705005
Halekas JS, Brain DA, Eastwood JP, 2011, Large-amplitude compressive "sawtooth" magnetic field oscillations in the Martian magnetosphere, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 116, ISSN: 2169-9380
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- Citations: 22
Dunlop MW, Zhang Q-H, Bogdanova YV, et al., 2011, Extended Magnetic Reconnection across the Dayside Magnetopause, PHYSICAL REVIEW LETTERS, Vol: 107, ISSN: 0031-9007
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- Citations: 35
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