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  1. Article

    Open Access

    Modeling the Subsurface Structure of Sunspots

    While sunspots are easily observed at the solar surface, determining their subsurface structure is not trivial. There are two main hypotheses for the subsurface structure of sunspots: the monolithic model and ...

    H. Moradi, C. Baldner, A. C. Birch, D. C. Braun, R. H. Cameron in Solar Physics (2010)

  2. No Access

    Article

    Large-Scale Zonal Flows Near the Solar Surface

    Migrating bands of weak, zonal flow, associated with the activity bands in the solar cycle, have been observed at the solar surface for some time. More recently, these flows have been probed deep within the co...

    R. Howe, R. Komm, F. Hill, R. Ulrich, D. A. Haber, B. W. Hindman, J. Schou in Solar Physics (2006)

  3. No Access

    Article

    Organized Subsurface Flows near Active Regions

    Local helioseismic techniques, such as ring analysis and time-distance helioseismology, have already shown that large-scale flows near the surface converge towards major active regions. Ring analysis has furth...

    D.A. Haber, B.W. Hindman, J. Toomre, M.J. Thompson in Solar Physics (2004)

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    Article

    Solar shear flows deduced from helioseismic dense-pack samplings of ring diagrams

    We report on large-scale horizontal flows in the solar convection zone and their variability in time and space using a local-helioseismology technique known as ring-diagram analysis. By performing this analysi...

    D.A. Haber, B.W. Hindman, J. Toomre, R.S. Bogart, M.J. Thompson, F. Hill in Solar Physics (2000)