Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Fausto T. Gratton"'
Autor:
Rumi Nakamura, Robert E. Ergun, C. J. Pollock, Christopher T. Russell, Charlie J. Farrugia, Per-Arne Lindqvist, Noé Lugaz, Kristoff Paulson, Barry Mauk, Roy B. Torbert, S. A. Fuselier, D. J. Gershman, J. R. Shuster, Robert J. Strangeway, B. Lavraud, Ian J. Cohen, L. Alm, A. J. Rogers, Bernard J. Vasquez, Yuri V. Khotyaintsev, Göran Marklund, D. Payne, Barbara L. Giles, Matthew R. Argall, Hiroshi Matsui, James L. Burch, Fausto T. Gratton, S. M. Petrinec, Terry G. Forbes
Publikováno v:
Journal of Geophysical Research: Space Physics. 123:8983-9004
In this paper we report on a sequence of large-amplitude Alfvenic fluctuations terminating in a field and flow discontinuity and their effects on electromagnetic fields and plasmas in the near-magn ...
Publikováno v:
Journal of Geophysical Research: Space Physics. 119:4572-4590
We present an example of a boundary layer tailward of the dawn terminator which is entirely populated by rolled-up flow vortices. Observations were made by Wind on 24 October 2001 as the spacecraft moved across the region at the X plane approximately
Autor:
Fausto T. Gratton, Roy B. Torbert, Howard J. Singer, Charlie J. Farrugia, S. Mühlbachler, Vania K. Jordanova, K. W. Ogilvie, Hiroshi Matsui
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 70:371-376
During solar cycle 23 quasi-dropouts of the solar wind (density < 1 cm_3) were observed. These tenuous winds allow us to probe properties of the magnetosphere and its coupling to the solar wind which would otherwise be obscured by the effect of high
Publikováno v:
Brazilian Journal of Physics. 34:1797-1803
Electromagnetic ion cyclotron waves in the plasma depletion layer measured by Wind on three inbound passes of the magnetosheath near the stagnation streamline are modeled using theoretical results from Gnavi et al., J. Geophys. Res., 105, 20973, 2000
Publikováno v:
Brazilian Journal of Physics. 34:1804-1813
Working within the domain of inviscid incompressible MHD theory, we found that a tangential discontinuity (TD) separating two uniform regions of different density, velocity and magnetic field may be Kelvin-Helmholtz (KH) stable and yet a study of a t
Autor:
Fausto T. Gratton, Peter Stauning, K. W. Ogilvie, R. P. Lepping, Charlie J. Farrugia, Nikolai V. Erkaev, Roy B. Torbert, L. Bender, G. Gnavi
Publikováno v:
Advances in Space Research. 31:1105-1110
With its ≈12 h-long period of strongly northward magnetic field, the coronal mass ejection which passed Earth on April 11, 1997 afford an excellent opportunity of study Kelvin-Helmholtz (KH) activity at the dayside magnetopause as a function of the
Publikováno v:
Brazilian Journal of Physics, Volume: 32, Issue: 4, Pages: 945-957, Published: DEC 2002
Brazilian Journal of Physics v.32 n.4 2002
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF
Brazilian Journal of Physics v.32 n.4 2002
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF
The compressible magnetohydrodynamic Kelvin-Helmholtz instability occurs in two varieties, one that can be called incompressible as it exists in the limit of vanishing compressibility (primary instability), while the other exists only when compressib
Publikováno v:
Brazilian Journal of Physics. 32:632-635
The enhancement of the resonant instability of right-hand polarized electromagnetic ion cyclotron waves by alpha particles for physical parameters corresponding to coronal mass ejections is studied. We focus on the effects of alpha thermal anisotropy
Publikováno v:
Space Science Reviews. 95:443-456
A debate of long standing concerns the role viscous interactions play in magnetospheric dynamics. Is it minor or is it central to, e.g., drive the low latitude boundary layer on closed field lines and account for the substantial level of wave activit
Autor:
Charlie J. Farrugia, Sergio Dasso, K. W. Ogilvie, R. P. Lepping, R. J. Fitzenreiter, Fausto T. Gratton
Publikováno v:
Advances in Space Research. 28:747-752
As first discussed by Farrugia et al. (J. Geophys. Res., 103, 6543, 1998), coronal mass ejections (CMEs) may support the excitation of electromagnetic ion cyclotron waves (EICWs). The proton plasma beta, and the electron temperature and anisotropy in