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Dr. Rebecca Allen

After the discovery of fossils we learned that ancient things existed on Earth long before us. Then, there was the thrill of the hunt as the fossil record became more complete with each new discovery. But where are the bones of galaxies? How can we distinguish the nearby elliptical giants from the compact ancestors? Using the Z-FOURGE survey I plan on compiling a photometric record of distant, compact red galaxies and compare their structures with galaxies of the present time. Specifically, are these distant red nuggets the progenitors of our massive neighbors and, if so, how did they grow and acquire their size? Addressing these questions and analyzing the properties of the inherent stellar populations can produce a more precise galactic fossil record.

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