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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20150224T123000
DTEND;TZID=Atlantic/Canary:20150224T133000
UID:iactalks-762
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/762
CREATED:2015-02-24T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY: Morphological And Thermal Properties Of The Solar Corona : Diagnos
 tic Tools & Applications 
DESCRIPTION: Morphological And Thermal Properties Of The Solar Corona : Dia
 gnostic Tools & Applications \nDr. Chloé Guennou\n\nProgress in our under
 standing of the Solar corona and  its underlying heating and acceleration 
 processes, depends critically on  our ability to measure fundamental plasm
 a parameters, such as magnetic  field, density, temperature and compositio
 n. In this talk, I will  introduce my main research topics which concern m
 easurement of  fundamental plasma parameters in the Solar corona and the d
 evelopment of  new plasma diagnostic tools, in order to provide constraint
 s for the  various proposed physical mechanisms.\nCoronal observations are
  always integrated along a  line of sight (LOS). Because there may be mult
 iple emitting sources,  this considerably complicates the interpretation o
 f the observations. To  avoid this ambiguity there are several tools, incl
 uding the widely used  Differential Emission Measure (DEM) analysis and th
 e tomography  reconstruction technique. However, both the derivation and t
 he  interpretation of the DEM from observations are difficult mainly due t
 o  the inverse nature of the problem. I will present a new strategy to  ev
 aluate the robustness of the DEM inversion problem. An application of  the
  DEM formalism will be presented, allowing us to measure the relative  abu
 ndances in both interplumes and plumes using Hinode/Extreme  Ultraviolet I
 maging Spectrometer (EIS) data. Finally, I will present the  inversion cod
 e I developed, able to perform the coupling of the DEM  formalism and the 
 tomography, providing a three dimensional diagnostic  in temperature and d
 ensity of the solar corona.
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