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Winter 2025
Winter 2025
Fall 2024
Fall 2024
DESI 2024 Constraints - Carly Mistick
DESI 2024 Constraints - Carly Mistick
My presentation first focuses on introductory cosmology as introduced in Chapters 1-3 of 'Course in Cosmology' (Huterer). Then I use this knowledge to duplicate results of the recent DESI 2024 paper for the flat ΛCDM parameter constraints. I implement equations for the flat ΛCDM cosmological model and check their accuracy against the empirical values, and compare my final constrained results with those of the paper.
How to Determine Masses Using Gravitational Waves - Haden Fish
How to Determine Masses Using Gravitational Waves - Haden Fish
In the paper about the first direct detection of gravitational waves, the masses of the initial black holes were determined using statistical methods. However, is it possible to determine the masses without using a best fit of various model waveforms? An equation for the masses can be derived using Newtonian Gravity with a Post-Newtonian correction.
X-ray and Neutron Scattering - Zoey Brookbanks
X-ray and Neutron Scattering - Zoey Brookbanks
X-ray and scattering experiments are used frequently within physics research, however both methods have complex nuances with important implications for data acquisition and analysis. To better understand the specific uses for x-ray versus neutron scattering, we will review the characteristics of x-rays verse neutrons, and discuss how that impacts their diffraction. We will discuss the strengths and weaknesses of both measurements and how to most effectively use the techniques to analyze materials. We will discuss specific techniques for both x-rays and neutrons, and facilities which allow for x-ray/neutron experiments. Finally, we will review a data analysis of H20 with both x-ray and neutron scattering, as well as D20 with neutron scattering.
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