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Invited speakers (afternoon): David Alexander (Rice University)

Brad Hindman (JILA/University of Colorado). Invited speakers (afternoon): David Alexander (Rice University) Chip Manchester (University of Michigan). Active Region Magnetic Fields: From the Photosphere to the Corona.

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Invited speakers (afternoon): David Alexander (Rice University)

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  1. Brad Hindman (JILA/University of Colorado) Invited speakers (afternoon): David Alexander (Rice University) Chip Manchester (University of Michigan)

  2. Active Region Magnetic Fields: From the Photosphere to the Corona Masahito Kubo (HAO/NCAR): Magnetic flux budget of a decaying sunspot G-band intensity (photosphere) Line-of-sight magnetogram (photosphere)

  3. inner area outer area Positive Negative Sunspot (penumbra) Moat region Outside moat region moat flow moat flow MMFs Flux cancellation MMFs Flux cancellation

  4. Brad Hindman (JILA/University of Colorado): Subsurface circulations established by active regions

  5. Plage Plage Sunspot Quiet Quiet Photosphere Moat flows (depth < 2 Mm) Surface inflows (depth < 7 Mm) Deep outflows (depth > 10 Mm)

  6. David Alexander (Rice University): Inferences from observations of active region flux FOLLOWING POLARITY (*) SHOWS MORE FLUCTUATION HELICITY IS ASYMMETRIC d: total helicity flux (x1042Mx2) over 5 days for the positive and negative polarities c: helicity injection rate (x1040Mx2 per hr) the positive and the negative polarities

  7. Is the corona, its topology and evolution consistent with the dynamics and evolution of the sub-surface expectations? • Can we infer gross properties of the near sub-surface region from surface observations? e.g. can the observations usefully inform the models? • Nature or nurture? Is solar activity (flares/CMEs etc.) a result of genetics (properties defined at birth) or environmental conditions (evolution of AR atmosphere, interaction with large scale corona, …)

  8. Chip Manchester (University of Michigan): Study of flux emergence: Photospheric shear flows that produce coronal eruptions

  9. Shine session proposal: Observations and modeling of the theoreticians active region, subphotosphere to corona New cycle active region case studies Submit results for session

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