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SUMMARY:Using gravitational lensing flexions to constrain dark matter halo
  shapes and profiles - Shude Mao (Manchester &amp\; NAOC)
DTSTART:20120808T121500Z
DTEND:20120808T124500Z
UID:TALK39192@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:Hierarchical structure formation theory predicts tri-axial hal
 o shapes and density profiles. Gravitational lensing flexion is related to
  the derivative of the weak lensing shear and convergence. We show that\,
  as a higher order derivative of the lensing potential\, the\nflexion ca
 n be used to test these predictions.
LOCATION:Sackler Lecture Theatre\, IoA
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