Synonyme wurden verwendet für: IN RESEARCH SPACE
Suche ohne Synonyme: title: ADVANCES IN SPACE RESEARCH -OXFORD

1–20 von 39 Ergebnissen
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    A study of the global heliospheric modulation of galactic Carbon

    Ngobeni, M.D. / Potgieter, M.S. | Elsevier | 2014
    Abstract Observations of galactic Carbon in the heliosphere provide a ...

    Challenges to cosmic ray modeling: From beyond the solar wind termination shock

    Potgieter, M.S. | Elsevier | 2007
    approaching the termination shock. Both spacecraft have been observing the modulation of galactic and anomalous cosmic rays since their launch in 1977 ...

    Cosmic ray anisotropies in the outer heliosphere

    Ngobeni, M.D. / Potgieter, M.S. | Elsevier | 2006
    cosmic ray anisotropies with numerical modulation models in order to illustrate how the radial anisotropy, at different energies, change from ...

    Cosmic ray flux at the Earth in a variable heliosphere

    Scherer, K. / Fichtner, H. / Heber, B. et al. | Elsevier | 2007
    AbstractIn recent years the variability of the cosmic ray flux has become one of ...

    Cosmic ray modulation in the outer heliosphere: Predictions for cosmic ray intensities up to the heliopause along Voyager 1 and 2 trajectories

    Manuel, R. / Ferreira, S.E.S. / Potgieter, M.S. | Elsevier | 2011
    Abstract Time dependent cosmic ray modulation in the outer heliosphere ...

    Cosmic rays in the dynamic heliosheath

    Ferreira, S.E.S. / Scherer, K. / Potgieter, M.S. | Elsevier | 2007
    AbstractCosmic ray modulation in the outer heliosphere is discussed from a ...

    Effects of the position of the solar wind termination shock and the heliopause on the heliospheric modulation of cosmic rays

    Langner, U.W. / Potgieter, M.S. | Elsevier | 2004
    improved numerical model with diffusive termination shock acceleration, a heliosheath and drifts is used. The modulation is computed in the ...

    Episodic cosmic-ray modulation in the heliosphere

    Le Roux, J.A. / Potgieter, M.S. | Elsevier | 1989
    model is applied to the simulation of propagating Forbush decreases (Fd's) in the heliosphere. Compared to a one-dimensional model the recovery ...

    First results of a new 3-D model of the time-dependent modulation of electrons in the heliosphere

    Kissmann, R. / Fichtner, H. / Heber, B. et al. | Elsevier | 2003
    modelling of Jovian and galactic electrons in the inner heliosphere. The main goal of the study is to check whether the form of the diffusion ...

    Heliospace Physics in South Africa: IHY 2007

    Potgieter, M.S. | Elsevier | 2007
    AbstractAn overview is given of research activities in South Africa related to ...

    Heliospheric terminal shock acceleration and modulation of the anomalous cosmic-ray component

    Potgieter, M.S. | Elsevier | 1989
    an axially-symmetric, terminal shock acceleration model, including drifts, show that despite a change in polarity the accelerated spectra, at ...

    Modeling ground and space based cosmic ray observations

    Strauss, R.D. / Potgieter, M.S. / Ferreira, S.E.S. | Elsevier | 2011
    , utilizing both ground and space based observations. Moreover, modelling cosmic ray modulation and comparing results with observations, insight can ...

    Modeling the acceleration and modulation of anomalous cosmic ray oxygen

    Strauss, R.D. / Potgieter, M.S. / Ferreira, S.E.S. | Elsevier | 2011
    spacecraft, the acceleration of anomalous cosmic rays has become a very contentious subject. In this paper we examine several topics pertinent to ...

    Modelling and observing Jovian electron propagation times in the inner heliosphere

    Strauss, R.D. / Potgieter, M.S. / Ferreira, S.E.S. | Elsevier | 2012
    Highlights ► The propagation time of Jovian electrons in the inner ...

    Modelling of galactic Carbon in an asymmetrical heliosphere: Effects of asymmetrical modulation conditions

    Ngobeni, M.D. / Potgieter, M.S. | Elsevier | 2012
    Voyager spacecraft inside the heliosheath indicate significant differences between them, suggesting that in addition to a possible global ...

    Modelling of low-energy galactic electrons in the heliosheath

    Nkosi, G.S. / Potgieter, M.S. / Webber, W.R. | Elsevier | 2011
    Abstract The modulation of cosmic ray electrons in the heliosphere plays ...

    Modelling the effects of scattering parameters on particle-drift in the solar modulation of galactic cosmic rays

    Ngobeni, M.D. / Potgieter, M.S. | Elsevier | 2015
    has always been included in numerical modulation models provided that the weak scattering drift velocity is scaled down in magnitude, although ...

    Modulation effects of a changing solar wind speed on low-energy electrons

    Ferreira, S.E.S. / Potgieter, M.S. / Moeketsi, D.M. | Elsevier | 2003
    to study the transport of 7 MeV joviair and galactic electrons in the heliosphere by changing the solar wind speed profile from solar minimum ...

    Modulation of anomalous protons with increasing solar activity

    Potgieter, M.S. / Langner, U.W. | Elsevier | 2002
    wind termination shock (TS) is used to study the acceleration and modulation of anomalous protons in the outer heliosphere with increasing ...

    Modulation of cosmic rays: Perpendicular diffusion and drifts in a heliosphere with a solar wind termination shock

    Potgieter, M.S. / Langner, U.W. | Elsevier | 2005
    AbstractIn this study the roles of polar perpendicular diffusion and drifts are ...