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Full-Text Articles in Physics

Scitech Book News Reviews, Susan Fingerman Aug 2013

Scitech Book News Reviews, Susan Fingerman

Sci-Tech News

No abstract provided.


Section Abstracts: Astronomy, Mathematics And Physics May 2013

Section Abstracts: Astronomy, Mathematics And Physics

Virginia Journal of Science

Abstracts of the Astronomy, Mathematics and Physics Section for the 91st Annual Virginia Journal of Science Meeting, May 2013


Computer Programming To Advance Gravitational Lensing, Alex Roche Jan 2013

Computer Programming To Advance Gravitational Lensing, Alex Roche

Undergraduate Review

The purpose of this research was to create a computer code that would numerically test a Poisson equation relating the mass distribution of a lens galaxy cluster to weak gravitational shear. Einstein’s theory of general relativity predicts that space-time is bent by massive objects, and in weak gravitational lensing, galaxy clusters act as lenses. The observable result is that galaxies far behind the gravitational lens will appear slightly more elliptical than they actually are. The ellipticity of the background galaxies is quantifiable and is directly related to the weak gravitational shear, and the shear is used to determine the mass …