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Proceedings: Aeronautics and Space Science

We present preliminary results of our project to study mass outflows from a sample of active galactic nuclei (AGN). Our project is based on analysis of ultraviolet spectra obtained with the Cosmic Origins Spectrograph (COS) aboard NASA's Hubble Space Telescope. Our study will explore the variability in the observed intrinsic absorption lines that are the signature of AGN outflows. We present an initial report of the variations in absorption strength and discuss implications for the physical nature of the outflows. Mass outflows in active galactic nuclei (AGN) are hypothesized to represent a feedback mechanism by which black hole growth and galaxy formation are linked. In order to assess this claim, a lower limit on the kinetic luminosity of these outflows must be determined. These limits can be constrained by combining computerized photoionization models with spectral measurements. Since the column density of C III* λλ1175 relative to other carbon ions tracks the volume density of the outflow gas, it provides an ideal proxy for this parameter. We present lower limits on the kinetic luminosity of a sample of AGNs based on measurements of the restframe UV absorption spectra. The behaviors of ferroelectric polymer Langmuir films are observed with the use of a Brewster angle microscope. In general, Langmuir films form a single molecular layer on water because they are often good amphiphiles. Since the polymer Polyvinylidene Fluoride (PVDF) is not a true amphiphile, parameters like solution concentration, water pH, and the amount injected on the trough may have an effect on film behavior and quality. With the aid of a Langmuir-Trough, a Brewster angle microscope, and the autonomous controls of a computer as a nexus between these instruments, different characteristics of the copolymer are studied. We present a method to multiplex (combine) and demultiplex (separate) eigenstates of light's total angular momentum. Multiplexing is accomplished by utilizing tunable liquid crystal devices which allows for dynamically generating superpositions of light. Demultiplexing is accomplished by using a device, analogous to a polarizing beam splitter, to separate light's orbital angular momentum. Encoding information in the combined degrees of freedom from the spin and orbital angular momentum, light's total angular momentum has great potential to increase information capacity in future classical and quantum communications. Replication protein A (RPA) has multi-faceted roles in DNA metabolism. As the primary eukaryotic ssDNA-binding protein, RPA plays essential roles in DNA replication, recombination, and repair. Multiple regulatory mechanisms have evolved to …