Browsing Physics and Astronomy by Supervisor "McNamara, Brian"
Now showing items 1-6 of 6
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An ALMA View of Molecular Gas in Brightest Cluster Galaxies
(University of Waterloo, 2018-09-25)In this thesis I use ALMA observations to map the distribution and kinematics of molecular gas in the brightest cluster galaxies of three galaxy clusters: 2A0335+096, RXJ0821+0752, and RXCJ1504-0248. The goal is to understand ... -
Messier 87: A Laboratory for Exploring AGN Variability using the Event Horizon Telescope
(University of Waterloo, 2020-09-17)At a distance of 50 million light years at the heart of the Virgo cluster, lies the giant elliptical galaxy Messier 87. This galaxy has at its center a brilliant relativistic jet, observable at all wavelengths, and at the ... -
Nonlinear Behavior of Unstable Black Holes in Anti-de Sitter Spacetimes
(University of Waterloo, 2020-09-25)The nonlinear dynamics of black holes is an increasingly relevant topic of which little is known. In this thesis, we study the full nonlinear dynamics of black holes, as well as their linear behavior, and combine them ... -
On The Origin of Cold Molecular Gas In Giant Elliptical Galaxies
(University of Waterloo, 2017-01-23)We present an analysis of 55 giant elliptical galaxies residing in the centre of clusters and groups to investigate the origin of H₂ molecular gas centrally located in these galaxies. Using Chandra X-ray data and IRAM 30m ... -
Re-visiting the Radio-Mechanical Feedback in Brightest Cluster Galaxies
(University of Waterloo, 2023-01-23)The self-regulated feedback from the Active Galactic Nucleus (AGN) plays a key role in the formation and evolution of galaxies by heating and expelling gas in galaxies. The goal of this thesis is to investigate the role ... -
X-ray Astrophysics: The Spoiler Clusters and XRISM Synchrotron Calibrations
(University of Waterloo, 2019-10-22)Cool core galaxy clusters hosting brightest cluster galaxies (BCGs) in their centres radiate away their energy on timescales of less than 10^9 yr. If cooling wasn't offset by some form of heating, the hot atmosphere would ...