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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20100427T000000
DTEND;TZID=Atlantic/Canary:20100427T010000
UID:iactalks-1
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1
CREATED:2010-04-27T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The stochastic, intermittent nature of quiet Sun magnetism
DESCRIPTION:The stochastic, intermittent nature of quiet Sun magnetism\nDr.
  María Jesús Martínez González\n\nThe quiet Sun (the 99%, or more, of 
 the solar surface not covered by sunspots or active regions) is receiving 
 increased attention in recent years; its role on the global magnetism and 
 its complexity are being increasingly recognised. A picture of a rather st
 ochastic quiet Sun magnetism is emerging. From these recent works, the qui
 et Sun magnetism is presented as a myriad of magnetic field vectors having
  an isotropical distribution with a cascade of scales down to the mean fre
 e path of the photon. But this chaotic representation also shows clear sig
 ns of intermittency: at a low frequency rate (0.022 events h-1 arcsec-2) t
 he magnetic field appear in the quiet Sun forming well-organised loop stru
 ctures at granular scales. More interesting, these loops rise to higher la
 yers and their energy input into the chromosphere can be important for the
  heating of this layer. In the talk, I will present a pedagogic view of th
 e quiet Sun magnetism. I will focus on the ascent of the smallest ever obs
 erved magnetic flux emergence through the solar atmosphere. More specifica
 lly, I will show how to infer from high resolution, spectro-polarimetric o
 bservations (taken with the SOT instrument onboard Hinode) the magnetic to
 pology of the fields, how they rise through the photosphere to the chromos
 phere, and the implications of this phenomena for chromospheric (and coron
 al) heating.
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