Search Publications
Drifting field-aligned density structures in the night-side polar cap
Gurnett, D. A.; Persoon, A. M.; Pickett, J. S. +5 more
Spatio-temporal properties of density irregularities in the night-side polar cap are inferred from multi-point observations of auroral hiss at a radial distance of 5 Earth radii. In this case study, we use high resolution data of the wave instruments onboard the four Cluster spacecraft to estimate the local plasma density, obtaining values close t…
Interferometric identification of ion acoustic broadband waves in the auroral region: CLUSTER observations
André, M.; Vaivads, A.; Fazakerley, A. +2 more
We determine the phase velocity and k vector for parallel and oblique broadband extremely low frequency, ELF, waves on nightside auroral magnetic field lines at altitudes around 4.6 RE. We use internal burst mode data from the EFW electric field and wave instrument onboard the Cluster spacecraft to retrieve phase differences between the…
Ion cyclotron waves in the Saturnian magnetosphere associated with Cassini's engine exhaust
Russell, C. T.; Dougherty, M. K.; Khurana, K. K. +3 more
Five hours after the orbit insertion maneuver that placed Cassini into orbit about Saturn, a long (90 minute) burst of ion cyclotron waves were seen, very different than any waves on the inbound leg of the orbit or on succeeding orbits. The ion cyclotron waves were left-hand elliptically polarized and propagating at a moderately large angle to the…
Reply to comment by M. L. Kaiser et al. on ``Rotation rate of Saturn's interior from magnetic field observations''
Dougherty, Michele K.; Russell, Christopher T.; Smith, Edward J. +1 more
Abstract Available from
Comment on ``Rotation rate of Saturn's interior from magnetic field observations'' by Giacomo Giampieri and Michele K. Dougherty
Kaiser, M. L.; Desch, M. D.; Connerney, J. E. P. +2 more
Abstract Available from
Correction to ``Small rampart craters in an equatorial region on Mars: Implications for near-surface water or ice''
Jaumann, R.; Neukum, G.; Hauber, E. +2 more
Abstract Available from http://www.agu.org