Undergraduate Honors Program - Physics and Astronomy Department: Recent submissions
Now showing items 21-40 of 43
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2012-04)Rotation period distributions for older open clusters are difficult to obtain because of the general scarcity of clusters with ages greater than 200 Myr, as well as the challenge of measuring rotation periods for less ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2012-04)Cosmic microwave background (CMB) observations suggest the possibility of an extra dark radiation component, while the current evidence from big bang nucleosynthesis (BBN) is more ambiguous. Dark radiation from a decaying ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2012-05-04)Density functional theory is utilized in real-time, real-space simulations of LEED measurements and attosecond electron scattering. For LEED measurements, we find that our simulation results agree well with experimental ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)The study of living specimens is essential to the understanding of organismal behavior. Unfortunately, a major difficulty in the study of live organisms is that many move in and out of the field of view or focal plane ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)I develop a perturbation theory for resonant frequency shifts caused by thin layer of material added to dielectric systems. This development can be used to effectively model photonic surface-sensing systems, which use ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)The Pauli Exclusion Principle places a fundamental limit on the brightness of an electron beam. Developing a cathode which can reach this limit is useful for achieving maximum operation in current applications of ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)Finite element modeling was performed using COMSOL Multiphysics to study the thermal dynamics of gold::vanadium dioxide (VO$_{2}$) nanocomposites. These simulations were done to understand the data from transient ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2011-04)Due to the complex nature of the spectra of low-mass M type stars, it is difficult to determine their metallicities and temperatures directly. By studying eclipsing binary pairs comprising one F, G, or K type star with ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2010-04)
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2010-04)
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2010-04-27)Current models of nuclear structure describe nuclear states in terms of collective vibrations and rotations of a ground state. - One such quadrupole vibrational band is the gamma-band formed by vibrations of the short ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2010-04)Enclosed microfluidic devices provide excellent systems for the study of biological processes such as cell-cell, paracrine, and autocrine signaling systems. By minimizing the fluid volume within the chambers, ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2008-04-20)We use projected number density profiles of galaxy groups to investigate the relationship between galaxy group structure and dark matter structure within halos. We primarily study a specific model of how galaxies populate ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2009-04-20)Precise control of fluid delivery in analytical devices may be achieved by harnessing electroosmotic flow (EOF) in oxidized poly(dimethylsiloxane) microfluidic channels fabricated via soft lithography. However, the ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2009-04-20)A retarding mesh analyzer was used to measure the electron energy spectrum field emitted from a single tip of a Diamond Field Emitter Array. The emission was dominated by adsorbed gas atoms and molecules on the surface ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2009-04-20)We report time-series CCD I-band photometry for the pre-main-sequence cluster NGC 6530, located within the Lagoon Nebula. The data were obtained with the 4Kx4K imager on the SMARTS 1.0m telescope at CTIO on 36 nights over ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2009-04-20)The Compact Muon Solenoid Experiment (CMS) at the Large Hadron Collider (LHC) at CERN has brilliant prospects for uncovering new information about the physical structure of our universe. Soon physicists around the world ...
-
(Vanderbilt University. Dept. of Physics and Astronomy, 2009-04-20)In November 2006, the authors collected data on blazars PKS 0537-441, PKS 0447-439, and PKS 0208-5121 from the Cerra Tololo Inter-American Observatory in Chile. All three blazars are tested for microvariability, first ...
-
(Vanderbilt University. Dept. of Physics & Astronomy, 2008-04-27)Blazars AP Librae and 3c279 are analyzed for microvariability using a technique known as structure function analysis. AP Librae was observed in April of 2005 and 3c279 was observed in April of 2007. The data for AP Librae ...
-
(Vanderbilt University. Dept. of Physics & Astronomy, 2008-04)While this project did not successfully produce a working photovoltaic device, significant progress has been made in the individual components of the system. This thesis describes two of those components: fabrication of ...