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Office Location(s): 1014 Dennison
B.A. Physics | Carleton College, Northfield, MN | Advisor: Keren Sharon
Strong lensing in galaxy clusters
Traci models strong gravitational lensing in galaxy clusters: the most massive structures in the universe and natural telescopes to the distant universe. The dark matter halos occupied by these clusters are massive enough to bend and deflect light from background toward our line-of-sight, allowing us to see highly-magnified, distorted, multiple-images of the same background galaxies. Traci uses the configurations of these lensed images to model the cluster mass. These models are used to derive the magnification of the source and to reconstruct the shape of the galaxy as it would be seen if not lensed. All of this information is needed to study the physical properties of the lensed galaxies, such as luminosity, morphology, substructure, and star formation rate. Strong lensing allows us to gain detailed insight into the star formation history of the universe around the time when galaxies were producing their stars most efficiently.
830 Dennison500 Church St.
Ann Arbor, MI