Now showing items 1-5 of 5
A Unified Relativistic Treatment of Tidal Disruption Events and a New Model for Self-Intersections Involving Tidal Debris Streams for Schwarzschild Black Holes
This dissertation concerns the astrophysical phenomena known as tidal disruption events~(TDEs), where stars are ripped apart by gravitational tides from their host galaxies' central supermassive black hole~(SBH). Stars are ...
A Study of Abell 2146: Dark and Luminous
The universe is a highly dynamic system. Under the primary inﬂuence of gravity, matter in the universe clumped together to create the structure we currently observe with our telescopes. Gravity formed objects on vastly ...
Testing the Dark Sector Versus Modified Gravity Models in Cosmology
This dissertation studies cosmological and astrophysical tests of gravity theories and the dark sectors. We focus on three tests. All of them are promising for future observations. The first test is about tensor-mode ...
Studies of Baryonic Physics and Triaxiality in Galaxy Clusters
This dissertation concerns the impact of baryonic physics and triaxiality on galaxy clusters. The first and primary portion of this work is to investigate the impact baryonic processes have on galaxy cluster masses, ...
Weak Gravitational Lensing Shear and Magnification Analysis of Hydrodynamic Simulations and Application to Weak Lensing Data
In the main part of this dissertation we study the impact of baryonic processes and massive neutrinos on weak lensing peak statistics that can be used to constrain cosmological parameters. We use the BAHAMAS simulations, ...