Analysis of Caustic Methods for Galaxy Cluster Masses
Explore the systematic analysis of caustic methods for estimating galaxy cluster masses, uncovering challenges and potential solutions in the field of optics and mass estimation techniques. Discover the concept of caustics in optics and its application in understanding the dynamics of galaxy clusters, addressing the limitations and uncertainties in observational data.
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Presentation Transcript
A systematic analysis of caustic methods for galaxy clsuter masses Gifford et al. 2013 ApJ 773 116 Jeeseon Song
Caustics (optics) In optics, a caustic or caustic network is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface.(wikipedia)
Caustic (cluster mass estimation) Direct measure of potential (r)
Problem? No 3D information in real data Observational uncertainty in radius and velocity
How to define surface
