Imperial College London

Dr Jonathan P. Eastwood

Faculty of Natural SciencesDepartment of Physics

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 8101jonathan.eastwood Website

 
 
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Location

 

6M63Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

157 results found

Eastwood JP, 2003, The terrestrial foreshock as observed by the multi-spacecraft Cluster mission

Thesis dissertation

Mazelle C, Meziane K, LeQueau D, Wilber M, Eastwood JP, Reme H, Sauvaud JA, Bosqued JM, Dandouras I, McCarthy M, Kistler LM, Klecker B, Korth A, Bavassano-Cattaneo MB, Pallocchia G, Lundin R, Balogh Aet al., 2003, Production of gyrating ions from nonlinear wave-particle interaction upstream from the Earth's bow shock: A case study from Cluster-CIS, PLANETARY AND SPACE SCIENCE, Vol: 51, Pages: 785-795, ISSN: 0032-0633

Journal article

Eastwood JP, Balogh A, Lucek EA, Mazelle C, Dandouras Iet al., 2003, On the existence of Alfven waves in the terrestrial foreshock, ANNALES GEOPHYSICAE, Vol: 21, Pages: 1457-1465, ISSN: 0992-7689

Journal article

Eastwood JP, Balogh A, Dunlop MW, Horbury TS, Dandouras Iet al., 2002, Cluster observations of fast magnetosonic waves in the terrestrial foreshock, GEOPHYSICAL RESEARCH LETTERS, Vol: 29, ISSN: 0094-8276

Journal article

Eastwood JP, Balogh A, Dunlop MW, Smith CWet al., 2002, Cluster observations of the heliospheric current sheet and an associated magnetic flux rope and comparisons with ACE, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 107, ISSN: 0148-0227

Journal article

Horbury TS, Cargill PJ, Lucek EA, Eastwood J, Balogh A, Dunlop MW, Fornacon KH, Georgescu Eet al., 2002, Four spacecraft measurements of the quasiperpendicular terrestrial bow shock: Orientation and motion, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 107, ISSN: 0148-0227

Journal article

Adhikari S, Shay MA, Parashar TN, Pyakurel PS, Matthaeus WH, Godzieba D, Stawarz JE, Eastwood JP, Dahlin JTet al., Reconnection from a Turbulence Perspective

The spectral properties associated with laminar, anti-parallel reconnectionare examined using a 2.5D kinetic particle in cell (PIC) simulation. Both thereconnection rate and the energy spectrum exhibit three distinct phases: aninitiation phase where the reconnection rate grows, a quasi-steady phase, and adeclining phase where both the reconnection rate and the energy spectrumdecrease. During the steady phase, the energy spectrum exhibits approximately adouble power-law behavior, with a slope near -5/3 at wavenumbers smaller thanthe inverse ion inertial length, and a slope steeper than -8/3 for largerwavenumbers up to the inverse electron inertial length. This behavior isconsistent with a Kolmogorov energy cascade and implies that laminarreconnection may fundamentally be an energy cascade process. Consistent withthis idea is that the reconnection rate exhibits a rough correlation with theenergy spectrum at wave numbers near the inverse ion inertial length. The 2Dspectrum is strongly anisotropic with most energy associated with the wavevector direction normal to the current sheet. Reconnection acts to isotropizethe energy spectrum, reducing the Shebalin angle from an initial value of 70degrees to about 48 degrees (nearly isotropic) by the end of the simulation.

Journal article

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