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<p class=MsoPlainText>Dear Colleagues, <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Our paper ‘Patterns of Nanoflare Storm Heating Exhibited
by an Active Region Observed with SDO/AIA’ was recently accepted for
publication in ApJ.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Please find the paper at:<o:p></o:p></p>
<p class=MsoPlainText><a href="http://arxiv.org/abs/1106.4196">http://arxiv.org/abs/1106.4196</a><o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Authors: Nicholeen Viall and James Klimchuk<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Abstract:<o:p></o:p></p>
<p class=MsoPlainText>It is largely agreed that many coronal loops---those
observed at a temperature of about 1 MK--- are bundles of unresolved strands
that are heated by storms of impulsive nanoflares. The nature of coronal
heating in hotter loops and in the very important but largely ignored diffuse
component of active regions is much less clear. Are these regions also heated
impulsively, or is the heating quasi steady? The spectacular new data from the
Atmospheric Imaging Assembly (AIA) telescopes on the Solar Dynamics Observatory
(SDO) offer an excellent opportunity to address this question. We analyze the
light curves of coronal loops and the diffuse corona in 6 different AIA
channels and compare them with the predicted light curves from theoretical
models. Light curves in the different AIA channels reach their peak intensities
with predictable orderings as a function the nanoflare storm properties. We
show that while some sets of light curves exhibit clear evidence of cooling
after nanoflare storms, other cases are less straightforward to interpret.
Complications arise because of line-of-sight integration through many different
structures, the broadband nature of the AIA channels, and because physical
properties can change substantially depending on the magnitude of the energy
release. Nevertheless, the light curves exhibit predictable and understandable
patterns consistent with impulsive nanoflare heating.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Cheers, <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Nicki<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoNormal><span style='color:black'>************************<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>Nicholeen Viall<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>Code 671<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>NASA/Goddard Space Flight
Center<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>Greenbelt, MD 20771<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>Email: <a
href="mailto:Nicholeen.M.Viall@nasa.gov%3cmailto:Nicholeen.M.Viall@nasa.gov">Nicholeen.M.Viall@nasa.gov</a><o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>Phone: 301-286-4054<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
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