Fundamental Solar Physics Results from Hinode and the Solar Dynamics Obervatory

Mathematics – Logic

Scientific paper

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Scientific paper

Hinode is the most technologically advanced solar observatory ever
operated in space. It contains three instruments that provide major
improvements in spatial, temporal and spectral resolution over
previous solar space instruments. In its 3-year prime mission
(starting November, 2006) during low levels of solar activity,
observations have resulted in greatly improved understanding of the
interaction between convection and the solar magnetic fields and new
insights into the mechanisms that heat the solar atmosphere and
produce the UV and X-ray emission. Hinode results cover a wide range
of scientific issues that include the local solar dynamo, evidence for
the convective origin of sunspot penumbrae, the ubiquity of jets
formed by magnetic reconnection in the low solar atmosphere, the
presence of strong Alfven waves in the chromosphere and corona with
enough power to drive the solar wind, measurements of the free energy
powering solar eruptions, direct observations of current sheets formed
by Petschek-like reconnection driving CMEs, the presence of pervasive,
impulsive heating events in active regions that constrain coronal
heating models, and persistent outflows at the edges of active regions
that provide mass and energy to the solar wind. Solar Dynamics
Observatory (SDO), launched in February, 2010, has full disk imagers
with very high cadence to study the causes and predictability of
solar variability. In some important ways, Hinode will function as the
``microscope,'' both in spatial and spectral resolution, for SDO, just
as TRACE did for SOHO. Some initial examples of joint observations
will be shown.

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