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  • 1
    Electronic Resource
    Electronic Resource
    Jupiter's Magnetosphere (1977)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Astronomy and Astrophysics 15 (1977), S. 389-436 
    Details
    ISSN: 0066-4146
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.aa.15.090177.002133
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  • 2
    Electronic Resource
    Electronic Resource
    Possibility of detecting magnetospheric radio bursts from Uranus and Neptune (1976)
    [s.l.] : Nature Publishing Group
    Nature 261 (1976), S. 299-301 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Values ; for quantities us ;ed in estimating the detectability of Ml RJBs are listed foi r each of the planets *P (gauss) BE ode (gauss) PN^N W* IV p Peak frequency (W) (MHz) Peak power flux at Earth (Wm2Hz) Total radiated power (W) Earth Jupiter Saturn Uranus ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/261299a0
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  • 3
    Electronic Resource
    Electronic Resource
    Evidence for a magnetosphere at Ganymede from plasma-wave observations by the Galileo spacecraft (1996)
    [s.l.] : Nature Publishing Group
    Nature 384 (1996), S. 535-537 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The trajectory for the Ganymede fly-by is shown in Fig. 1. This fly-by was designed to obtain measurements in the wake created by the co-rotating magnetospheric plasma of Jupiter. The closest approach occurred at 06:29:07 UT (universal time, h:min:s, at the spacecraft) at an altitude of 835 km and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/384535a0
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  • 4
    Electronic Resource
    Electronic Resource
    Nonlinear, dispersive, elliptically polarized Alfvén waves (1988)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 31 (1988), S. 1949-1961 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The derivative nonlinear Schrödinger (DNLS) equation is derived by an efficient means that employs Lagrangian variables. An expression for the stationary wave solutions of the DNLS that contains vanishing and nonvanishing and modulated and nonmodulated boundary conditions as subcases is then obtained. The solitary wave solutions for elliptically polarized quasiparallel Alfvén waves in the magnetohydrodynamic limit (nonvanishing, unmodulated boundary conditions) are obtained. These converge to the Korteweg–de Vries and the modified Korteweg–de Vries solitons obtained previously for oblique propagation, but are more general. It is shown there are no envelope solitary waves if the point at infinity is unstable to the modulational instability. The periodic solutions of the DNLS are charcterized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.866642
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  • 5
    Electronic Resource
    Electronic Resource
    Alfvén shock trains (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 1407-1419 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The Cohen–Kulsrud–Burgers equation (CKB) is used to consider the nonlinear evolution of resistive, quasiparallel Alfvén waves subject to a long-wavelength, plane-polarized, monochromatic instability. The instability saturates by nonlinear steepening, which proceeds until the periodic waveform develops an interior scale length comparable to the dissipation length; a fast or an intermediate shock then forms. The result is a periodic train of Alfvén shocks of one or the other type. For propagation strictly parallel to the magnetic field, there will be two shocks per instability wavelength. Numerical integration of the time-dependent CKB equation shows that an initial, small-amplitude growing wave asymptotes to a stable, periodic stationary wave whose analytic solution specifies how the type of shock embedded in the shock train, and the amplitude and speed of the shock train, depend on the strength and phase of the instability. Waveforms observed upstream of the Earth's bowshock and cometary shocks resemble those calculated here.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859706
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  • 6
    Electronic Resource
    Electronic Resource
    Structure and evolution of small-amplitude intermediate shock waves (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 253-269 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A simplified set of equations is derived that approximates the magnetohydrodynamic (MHD) Navier–Stokes equations for weakly nonlinear disturbances whose speeds are close to the MHD intermediate speed. Its shock structure solutions are then examined. The fast and slow shock solutions are uniquely specified by their Rankine–Hugoniot relations. However, the intermediate shock solutions, which are not unique, are characterized by the integral through the shock of the noncoplanar component of the magnetic field. For situations in which this integral is conserved, the Riemann problem is well defined and predicts the evolution of intermediate shocks. This analysis is substantiated by numerical computations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859235
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  • 7
    Electronic Resource
    Electronic Resource
    The small amplitude magnetohydrodynamic Riemann problem (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 2877-2886 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The small amplitude magnetohydrodynamic Riemann problem is studied using the Cohen–Kulsrud–Burgers equations. Unlike the coplanar Riemann problem, the evolution of noncoplanar Riemann problems is not self-similar and its flow structures could change in time. But its large-time behavior is very simple and a time-dependent 2→3 intermediate shock is always involved for the noncoplanar field rotations. The time-dependent 2→3 intermediate shock has a well-defined structure and exists for any degree of field rotation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860675
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  • 8
    Electronic Resource
    Electronic Resource
    Chaos in driven Alfvén systems (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 2581-2590 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The chaos in a one-dimensional system, which would be nonlinear stationary Alfvén waves in the absence of an external driver, is characterized. The evolution equations are numerically integrated for the transverse wave magnetic field amplitude and phase using the derivative nonlinear Schrödinger equation (DNLS), including resistive wave damping and a long-wavelength monochromatic, circularly polarized driver. A Poincaré map analysis shows that, for the nondissipative (Hamiltonian) case, the solutions near the phase space (soliton) separatrices of this system become chaotic as the driver amplitude increases, and "strong'' chaos appears when the driver amplitude is large. The dissipative system exhibits a wealth of dynamical behavior, including quasiperiodic orbits, period-doubling bifurcations leading to chaos, sudden transitions to chaos, and several types of strange attractors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859383
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  • 9
    Electronic Resource
    Electronic Resource
    Self-modulational formation of pulsar microstructures (1983)
    Springer
    Astrophysics and space science 97 (1983), S. 9-18 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We discuss a nonlinear plasma theory for self-modulation of pulsar radio pulses. A nonlinear Schrödinger equation is derived for strong electromagnetic waves propagating in an electron-positron plasma. The nonlinearities arising from wave intensity induced particle mass variation may excite the modulational instability of circularly and linearly polarized pulsar radiation. The resulting wave envelopes can take the form of periodic wave trains or solitons. These nonlinear stationary waveforms may account for the formation of pulsar microstructures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00684605
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  • 10
    Electronic Resource
    Electronic Resource
    The Galileo Plasma wave investigation (1992)
    Springer
    Space science reviews 60 (1992), S. 341-355 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The purpose of the Galileo plasma wave investigation is to study plasma waves and radio emissions in the magnetosphere of Jupiter. The plasma wave instrument uses an electric dipole antenna to detect electric fields, and two search coil magnetic antennas to detect magnetic fields. The frequency range covered is 5 Hz to 5.6 MHz for electric fields and 5 Hz to 160 kHz for magnetic fields. Low time-resolution survey spectrums are provided by three on-board spectrum analyzers. In the normal mode of operation the frequency resolution is about 10%, and the time resolution for a complete set of electric and magnetic field measurements is 37.33 s. High time-resolution spectrums are provided by a wideband receiver. The wideband receiver provides waveform measurements over bandwidths of 1, 10, and 80 kHz. These measurements can be either transmitted to the ground in real time, or stored on the spacecraft tape recorder. On the ground the waveforms are Fourier transformed and displayed as frequency-time spectrogams. Compared to previous measurements at Jupiter this instrument has several new capabilities. These new capabilities include (1) both electric and magnetic field measurements to distinguish electrostatic and electromagnetic waves, (2) direction finding measurements to determine source locations, and (3) increased bandwidth for the wideband measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00216861
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