Now showing items 1-7 of 7

  • 3D MHD flux emergence experiments: idealised models and coronal interactions: 

    Hood, Alan W.; Archontis, Vasilis; MacTaggart, David (Springer Verlag, 2012)
    This paper reviews some of the many 3D numerical experiments of the emergence of magnetic fields from the solar interior and the subsequent interaction with the pre-existing coronal magnetic field. The models described ...
  • Can magnetic breakout be achieved from multiple flux emergence? 

    MacTaggart, David; Hood, Alan W. (EDP Sciences, 2009-07)
    Aims. We study the breakout model using multiple flux emergence to produce the magnetic configuration and the trigger. We do not impose any artificial motions on the boundaries. Once the original flux tube configuration ...
  • Flux emergence within mature solar active regions 

    MacTaggart, David (EDP Sciences, 2011-07)
    Aims. Recent insterest in flux emergence within mature active regions has led to several observational studies. Our aim is to model such a scenario and investigate the evolution of the system. Methods. We solve the 3D ...
  • The magnetic structure of surges in small-scale emerging flux regions 

    MacTaggart, David; Guglielmino, S. L.; Haynes, A. L.; Simitev, R.; Zuccarello, F. (EDP Sciences, 2015-03-13)
    Aims. We investigate the relationship between surges and magnetic reconnection during the emergence of small-scale active regions. In particular, to examine how the large-scale geometry of the magnetic field, shaped by ...
  • Multiple eruptions from magnetic flux emergence 

    MacTaggart, David; Hood, Alan W. (EDP Sciences, 2009-12)
    Aims. In this paper we study the effects of a toroidal magnetic flux tube emerging into a magnetized corona, with an emphasis on large-scale eruptions. The orientation of the fields is such that the two flux systems are ...
  • On the emergence of toroidal flux tubes: general dynamics and comparisons with the cylinder model 

    MacTaggart, David; Hood, Alan W. (EDP Sciences, 2009-11)
    Aims. In this paper we study the dynamics of toroidal flux tubes emerging from the solar interior, through the photosphere and into the corona. Many previous theoretical studies of flux emergence use a twisted cylindrical ...
  • Simulating the "sliding doors" effect through magnetic flux emergence 

    MacTaggart, David; Hood, Alan W. (American Astronomical Society/Institute of Physics, 2010-06)
    Recent Hinode photospheric vector magnetogram observations have shown that the opposite polarities of a long arcade structuremove apart and then come together. In addition to this “sliding doors” effect, orientations of ...