Scientific publications

Ph.D. Thesis research (1988-1993)

The research described in these papers has been carried out during my Ph.D. research in Utrecht.

 

  1. Van Geffen, J.H.G.M. and Hoyng, P.: 1989,
    "Turbulent transport of magnetic fields, IV. Damping of the mean field <B> in alpha^2-dynamos with alpha propto cos theta,"
    Astron. Astrophys. 213, 429--430.

  2. Van Geffen, J.H.G.M. and Hoyng, P.: 1990,
    "Spatial distribution of magnetic energy in a simple turbulent dynamo,"
    Poster paper on IAU Symp. 138 (Kiev, april 1989),
    Solar photosphere: structure, convection and magnetic fields;
    J.O. Stenflo (ed.), Kluwer, Dordrecht.

  3. Van Geffen, J.H.G.M. and Hoyng, P.: 1990,
    "Turbulent transport of magnetic fields, V. Distribution of magnetic energy in a simple alpha^2-dynamo,"
    Geophys. & Astrophys. Fluid Dynamics 53, 109--123. *)

  4. Van Geffen, J.H.G.M., Hoyng, P. and Zwaan C.: 1991,
    "Non-steady global magnetic fields in kinematic theory,"
    in: I. Tuominen, D. Moss and G. Rüdiger (eds.),
    The Sun and Cool Stars: activity, magnetism, dynamos,
    IAU Coll. 130 (Helsinki, juli 1990), Springer-Verlag, Berlin, 129--134.

  5. Hoyng, P. and Van Geffen, J.H.G.M.: 1993,
    "Stochastic excitation of global magnetic fields by fluctuations in the mean helicity,"
    Geophys. & Astrophys. Fluid Dynamics 68, 203--236.

  6. Van Geffen, J.H.G.M.: 1993,
    Magnetic energy balance and period stability of the solar dynamo,
    Ph.D. thesis, University of Utrecht.
            ===> Introduction  |  Summary

  7. Van Geffen, J.H.G.M. and Hoyng, P.: 1993,
    "Distribution of magnetic energy in alpha Omega-dynamos, I: the method,"
    Geophys. & Astrophys. Fluid Dynamics 71, 187--221. *)

  8. Van Geffen, J.H.G.M.: 1993,
    "Distribution of magnetic energy in alpha Omega-dynamos, II: a solar convection zone dynamo,"
    Geophys. & Astrophys. Fluid Dynamics 71, 223--241. *)

  9. Van Geffen, J.H.G.M.: 1993,
    "Distribution of magnetic energy in alpha Omega-dynamos, III: a localized solar dynamo,"
    Astron. Astrophys. 274, 534--542. *)

  10. Van Geffen, J.H.G.M.: 1993,
    "Existence and energy balance of the solar dynamo,"
    in: F. Krause, K.-H. Rädler and G. Rüdiger (eds.), The Cosmic Dynamo,
    IAU Symp. 157 (Potsdam, september 1992) Kluwer, Dordrecht, 19--23.
*) Note: These papers have been included as chapters in [6].

 
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