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March 10, 2008 Absent

March 11, 2008 Basically my project consists of labeling emission and absorption lines in spectra, determining redshift, and determining from a graph, what type of spectra it is. AGN are Active Galactic Nuclei. They are far away galaxies that contain supermassive black holes at their center. The radiation given off by an AGN in the radio, infrared, visible, ultra-violet, X-ray and/or gamma ray wavebands are believed to come from the accretion disc of the supermassive black hole at the center of the host galaxy. I basically go through spectra that have been "cleaned," so to speak, of any interference, and use the wavelengths to figure out which elements cause certain emission lines to appear. I then figure out the ratio of two emission lines' wavelengths and use them, and the rest wavelengths of those elements, to figure out the redshift.

March 14, 2008 Today we have the Physics Masterclass over at Jordan Hall at Notre Dame.