Search Publications
Modulation of NTC frequencies by Pc5 ULF pulsations: Experimental test of the generation mechanism and magnetoseismology of the emitting surface
Grimald, S.; Foullon, C.; Décréau, P. M. E. +3 more
Nonthermal continuum (NTC) radiation is believed to be emitted by the conversion of an electrostatic wave into an electromagnetic one, which takes place at the Earth's magnetic equator. It is generally accepted that the frequency of the electrostatic wave at the source meets a local characteristic frequency placed in between two multiples of the e…
Cluster multispacecraft measurement of spatial scales of foreshock Langmuir waves
Pickett, J. S.; Dudok de Wit, T.; Santolik, O. +1 more
In this article, we present the first multispacecraft study of spatial scales of Langmuir wave packets in the terrestrial foreshock. We used data from the Wideband Data (WBD) instrument on the Cluster satellites to identify simultaneous observations of the same wave packet on multiple spacecraft at very small separations. To overcome instrumental …
Reply to comment by H. Hasegawa on “Evolution of Kelvin-Helmholtz activity on the dusk flank magnetopause”
Farrugia, C. J.; Fazakerley, A. N.; Owen, C. J. +3 more
Abstract Available from http://www.agu.org
Cluster observations and numerical modeling of energy-dispersed ionospheric H+ ions bouncing at the plasma sheet boundary layer
Frey, H. U.; Bosqued, J. M.; Marchaudon, A. +5 more
The Cluster mission offers a unique opportunity to investigate the origin of the energy-dispersed ion structures frequently observed at 4.5-5 R E altitude in the auroral region. We present a detailed study of the 14 February 2001 northern pass, characterized by the successive observation by three spacecraft of a series of energy-dispe…
Comment on “Spectral features of SKR observed by Cassini/RPWS: Frequency bandwidth, flux density and polarization” by Patrick Galopeau et al.
Cecconi, B.
Abstract Available from http://www.agu.org
Derivation of fluid conservation relations to infer near-Sun properties of coronal mass ejections from in situ measurements
McComas, D. J.; Riley, Pete
Coronal mass ejections (CMEs) are observed both near the Sun using remote solar measurements, as well as in the solar wind using in situ measurements. While many relationships have been made between these relatively disparate data sets, a number of connections remain poorly known. In this study, we use mass, momentum, and energy conservation to de…
Reply to comment by B. Cecconi on “Spectral features of SKR observed by Cassini/RPWS: Frequency bandwidth, flux density and polarization”
Lecacheux, Alain; Boudjada, Mohammed Y.; Galopeau, Patrick H. M.
Abstract Available from http://www.agu.org
Observations of loss cone-shaped back streaming energetic protons upstream of the Earth's bow shock
Hasegawa, H.; Fujimoto, M.; Kasaba, Y. +10 more
Energetic ions are at times observed in the upstream region of the Earth's bow shock, and their origin is considered to be in the interaction with the shock front. While the energy of the solar wind ions is a few keV at most, the energy of the back streaming ions ranges from ∼5 keV to several MeV. In the present study we investigate back streaming…
Transverse-scale size of Pc3 ULF waves near the exterior cusp
Dunlop, M. W.; Liu, Y. H.; Fraser, B. J. +4 more
The concept of a geomagnetic field line has been widely used in the study of magnetospheric physical phenomena. For example, the mode in which ULF waves propagate relates to the direction of the field, with the Alfven wave mode propagating along the field direction. Very little is known about the perpendicular extent of the propagating wave. In th…
Erratum: Correction to “An auroral oval at the footprint of Saturn's kilometric radio sources, colocated with the UV aurorae”
Cecconi, B.; Lamy, L.; Nichols, J. D. +3 more
Abstract Available from http://www.agu.org