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  • 1
    Online Resource
    Online Resource
    The kinetic shell model of coronal heating and acceleration by ion cyclotron waves: 3. The proton halo and dispersive waves
    American Geophysical Union (AGU) ; 2004
    In:  Journal of Geophysical Research Vol. 109, No. A3 ( 2004)
    Details
    In: Journal of Geophysical Research, American Geophysical Union (AGU), Vol. 109, No. A3 ( 2004)
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2002JA009449
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2004
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    SSG: 16,13
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  • 2
    Online Resource
    Online Resource
    A weaker solar wind termination shock
    American Geophysical Union (AGU) ; 1997
    In:  Geophysical Research Letters Vol. 24, No. 6 ( 1997-03-15), p. 623-626
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 24, No. 6 ( 1997-03-15), p. 623-626
    Type of Medium: Online Resource
    ISSN: 0094-8276
    URL: Article
    DOI: 10.1029/97GL00597
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1997
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    detail.hit.zdb_id: 7403-2
    SSG: 16,13
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  • 3
    Online Resource
    Online Resource
    Simultaneous observations of energetic electrons and dawnside chorus in geosynchronous orbit
    American Geophysical Union (AGU) ; 1982
    In:  Journal of Geophysical Research: Space Physics Vol. 87, No. A3 ( 1982-03), p. 1495-1503
    Details
    In: Journal of Geophysical Research: Space Physics, American Geophysical Union (AGU), Vol. 87, No. A3 ( 1982-03), p. 1495-1503
    Abstract: We present the first simultaneous observations of chorus activity and energetic particles from near‐geosynchronous orbit by using data from the Aerospace Corporation VLF receiver and the UCSD charged particle detector on the SCATHA satellite. We find that, for the 5 days studied, June 23–27, 1979, every encounter with injected clouds of energetic electrons was accompanied by chorus activity. We conclude that dawnside chorus is generated by substorm‐injected, anisotropic clouds of electrons with energies between 10 and 100 keV.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JA087iA03p01495
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1982
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    SSG: 16,13
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  • 4
    Online Resource
    Online Resource
    Finite amplitude Alfvén waves in a multi‐ion plasma: Propagation, acceleration, and heating
    American Geophysical Union (AGU) ; 1982
    In:  Journal of Geophysical Research: Space Physics Vol. 87, No. A7 ( 1982-07), p. 5023-5029
    Details
    In: Journal of Geophysical Research: Space Physics, American Geophysical Union (AGU), Vol. 87, No. A7 ( 1982-07), p. 5023-5029
    Abstract: We derive an expression for the wave action flux of finite amplitude Alfvén waves in a multi‐ion plasma. The expression is valid in the presence of dissipative forces and allows an arbitrary angle between the average magnetic field and the wave vector. Applying the conservation of wave action and the first law of thermodynamics yields the following results for a multi‐ion plasma: (1) an expression for the spatial evolution of Alfvén wave amplitude in the absence of dissipation, (2) the relationship between the wave amplitude and the dissipative heating, and (3) an expression for the acceleration of an ion species by finite amplitude Alfvén waves. The acceleration consists of two terms: a nondissipative wave pressure that is identical to that derived previously under more restrictive conditions, and a new term giving the acceleration that must accompany dissipative heating. These results are discussed in the context of the observations of heavy ions in the solar wind.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JA087iA07p05023
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1982
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    SSG: 16,13
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  • 5
    Online Resource
    Online Resource
    ACE observations of magnetic waves arising from newborn interstellar pickup helium ions
    American Geophysical Union (AGU) ; 2015
    In:  Geophysical Research Letters Vol. 42, No. 22 ( 2015-11-28), p. 9617-9623
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 42, No. 22 ( 2015-11-28), p. 9617-9623
    Abstract: Discovery of waves due to interstellar pickup He + Such waves can be found at 1 AU The observations match theoretical predictions
    Type of Medium: Online Resource
    ISSN: 0094-8276 , 1944-8007
    URL: Issue
    URL: Article
    DOI: 10.1002/grl.v42.22
    DOI: 10.1002/2015GL066374
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2015
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    detail.hit.zdb_id: 7403-2
    SSG: 16,13
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  • 6
    Online Resource
    Online Resource
    Reply [to “Comment on ‘On rotational forces in the solar wind’ By J. V. Hollweg and P. A. Isenberg ”]
    American Geophysical Union (AGU) ; 1983
    In:  Journal of Geophysical Research: Space Physics Vol. 88, No. A9 ( 1983-09), p. 7253-7253
    Details
    In: Journal of Geophysical Research: Space Physics, American Geophysical Union (AGU), Vol. 88, No. A9 ( 1983-09), p. 7253-7253
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JA088iA09p07253
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1983
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  • 7
    Online Resource
    Online Resource
    The ion cyclotron dispersion relation in a proton‐alpha solar wind
    American Geophysical Union (AGU) ; 1984
    In:  Journal of Geophysical Research: Space Physics Vol. 89, No. A4 ( 1984-04), p. 2133-2141
    Details
    In: Journal of Geophysical Research: Space Physics, American Geophysical Union (AGU), Vol. 89, No. A4 ( 1984-04), p. 2133-2141
    Abstract: Recent models of preferential acceleration and heating of heavy ions in the solar wind have invoked a resonant interaction with parallel‐propagating ion cyclotron waves. However, these waves must have frequencies in the cold plasma stop band (Ω α 〈 ω 〈 ω c ) to accelerate alpha particles to speeds faster than the bulk plasma. Such waves cannot exist in a plasma containing cold alpha particles. We investigate solutions to the WKB warm plasma dispersion relation in a proton‐alpha plasma to determine when parallel ion cyclotron waves can propagate at ω = Ω α . We present examples of the behavior of the dispersion curves in this resonant regime for several types of plasma states appropriate to the fast solar wind. We find that ion cyclotron waves can propagate at ω = Ω α for a bounded set of plasma parameters. However, use of the correct dispersion relation is likely to make resonant cyclotron acceleration of solar wind alpha particles less feasible as a mechanism to produce the observed preferential effects.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JA089iA04p02133
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1984
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  • 8
    Online Resource
    Online Resource
    On rotational forces in the solar wind
    American Geophysical Union (AGU) ; 1981
    In:  Journal of Geophysical Research: Space Physics Vol. 86, No. A13 ( 1981-12), p. 11463-11463
    Details
    In: Journal of Geophysical Research: Space Physics, American Geophysical Union (AGU), Vol. 86, No. A13 ( 1981-12), p. 11463-11463
    Abstract: We present a new and simpler derivation of the rotational forces on minor ions in the solar wind. We show that the rotational forces can be interpreted as potential forces affecting all particles equally. As such, they do not involve interactions between different particle species and do not represent an equilibrating process.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JA086iA13p11463
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1981
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    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 9
    Online Resource
    Online Resource
    Energy diffusion of pickup ions upstream of comets
    American Geophysical Union (AGU) ; 1987
    In:  Journal of Geophysical Research: Space Physics Vol. 92, No. A8 ( 1987-08), p. 8795-8799
    Details
    In: Journal of Geophysical Research: Space Physics, American Geophysical Union (AGU), Vol. 92, No. A8 ( 1987-08), p. 8795-8799
    Abstract: We present a steady state model of pickup ion energization upstream of a cometary bow wave in order to investigate the effects of quasi‐linear energy diffusion in the turbulence there. The model assumes that the ions are immediately isotropized at pickup, and it includes the effects of adiabatic acceleration in the slowing solar wind and of continual pickup of ions as the comet is approached. By taking all physical quantities to fall off as power laws with distance from the comet, an analytical expression is obtained for the distribution function of pickup ions in the reference frame moving with the solar wind. To illustrate the application of this model, we compare the model results to the observations of pickup ions at comet Giacobini‐Zinner. At present, this is the only cometary encounter for which sufficient quantitative information is available. The model does not compare well with these observations, but it is not clear whether the differences are due to artificial problems in the model or the data analysis or to the action of other energization processes at this comet. Preliminary results from the Halley encounters appear to agree more closely with this model.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/JA092iA08p08795
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1987
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    detail.hit.zdb_id: 710256-2
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    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 10
    Online Resource
    Online Resource
    PREFERENTIAL ACCELERATION AND PERPENDICULAR HEATING OF MINOR IONS IN A COLLISIONLESS CORONAL HOLE
    American Astronomical Society ; 2009
    In:  The Astrophysical Journal Vol. 696, No. 1 ( 2009-05-01), p. 591-600
    Details
    In: The Astrophysical Journal, American Astronomical Society, Vol. 696, No. 1 ( 2009-05-01), p. 591-600
    Type of Medium: Online Resource
    ISSN: 0004-637X , 1538-4357
    URL: Article
    DOI: 10.1088/0004-637X/696/1/591
    RVK:
    UA 1000
    Language: Unknown
    Publisher: American Astronomical Society
    Publication Date: 2009
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    detail.hit.zdb_id: 1473835-1
    SSG: 16,12
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