Bodo Ziegler
Bodo Ziegler
Bodo Ziegler
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<strong>Bodo</strong> <strong>Ziegler</strong>: Kinematic & Structural Evolution of Field & Cluster Spirals - Potsdam 21.9.10<br />
Morphologies of distant galaxies<br />
Fit 2dim surface brightness with your favorite<br />
➔ law (exponential, Sersic etc) for disk & bulge<br />
➔ model package (GALFIT, GIM2D, BUDDA)<br />
or use your favorite non-parametric approach<br />
➔ CAS: concentration, asymmetry, clumpiness<br />
➔ Gini & M 20<br />
⇒ structure evolution<br />
z=0.5 spiral<br />
GALFIT<br />
disk+bulge<br />
● What defines the morphology of a galaxy?
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