PowerPointPrsentation

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2D spectropolarimetric analysis of a small active
region in the solar photosphere Stefan
Stangl Institute for Geophysics, Astrophysics,
and Meteorology
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Observations
date 11.05.2002 device VTT Tenerife and
Göttingen Fabry-Perot Interferometer wavelengt
h 2 Fe I lines 6301.5 Å, 6302.5 Å telluric O2
data 40 scans with 150 images at 30
wavelength positions (5 images/position),
exposure time 30 ms, total time per scan 51 s (-gt
time series of 34 minutes), one wavelength step
is 31.74 m Å region small pore position x
-152.3, y -86.4 seeing good (9.9 lt r0 lt
11.8), from scan 24 moderate (r0 lt 9.8), with r0
as Fried parameter (cm)
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Lineprofiles
1/2 (IV) 1/2 (I-V)
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Bright points in speckle image
Subfield 4 x 4 arcsec2, FOV 11.7 x 16.5 arcsec2,
contours ILC 1.33 sLC
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Bright points in linecore image
Subfield 4 x 4 arcsec2, FOV 11.7 x 16.5 arcsec2,
contours ILC 1.33 sLC
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Histograms
two selected subfields
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3D scatter plots
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Relation of 6301.5 to 6302.5
v(6303)/v(6302) 1.105 B(6303)/B(6302) 1.097
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Movie of 6302 magnitudes