Date of Award

5-14-2011

Degree Type

Thesis

Degree Name

Honors Thesis

Department

Physics

First Advisor

Brian W. Murphy

Abstract

Recent observational data suggest the depletion of late-type giant stars in the inner most region of the Galactive Nucleus. Using dynamically evolving Fokker-Planck models of the Galactic Nucleus, we have followed in detail the stellar distribution as it evolves through the postmain-sequence phases. Of particular interest was the effect of stellar collisions and tidal disruptions by the central massive black hole on post main sequence stars as they expand in size. B y modeling tidal disruptions and stellar collisions, we have found that there should be a significant depletion of the giant stars in the innermost regions of the nucleus. Our models also suggest that tidal disruptions were found to have a larger effect on the depletion of giant stars than stellar collisions in this region.

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