Investigating properties of multi-stranded filament structures in the galactic center
Abstract
Details
- Title: Subtitle
- Investigating properties of multi-stranded filament structures in the galactic center
- Creators
- Dylan M Paré
- Contributors
- Cornelia C Lang (Advisor)Hai Fu (Committee Member)Philip Kaaret (Committee Member)Kenneth Gayley (Committee Member)James Green (Committee Member)
- Resource Type
- Dissertation
- Degree Awarded
- Doctor of Philosophy (PhD), University of Iowa
- Degree in
- Physics
- Date degree season
- Spring 2022
- DOI
- 10.17077/etd.006451
- Publisher
- University of Iowa
- Number of pages
- xiii, 144 pages
- Copyright
- Copyright 2022 Dylan M Paré
- Comment
This thesis has been optimized for improved web viewing. If you require the original version, contact the University Archives at the University of Iowa: https://www.lib.uiowa.edu/sc/contact/.
- Language
- English
- Description illustrations
- Illustrations, charts, graphs, tables
- Description bibliographic
- Includes bibliographical references (pages 124-130).
- Public Abstract (ETD)
The center of our own Milky Way Galaxy is an extreme region of the universe possessing elevated densities and temperatures. This region, known as the Galactic Center (GC), is also home to a population of unique, thread-like structures observed from radio emission. These glowing threads are highly polarized, and much remains unknown about them such as how they were formed and why they only appear in the GC. Recent observations of the GC have revealed several previously-unknown threads that are comprised of multiple individual filaments. These new threads contrast with the previously identified threads in the GC that consist of only one or a few filaments. One key question generated by the discovery of these fainter threads is why some threads are comprised of more filaments than others. For this dissertation I study these faint filaments to determine whether there are any differences between the various threads observed in the GC. I begin with a focused study of one of the most prominent of the thread structures known as the Radio Arc. From this study of the Radio Arc I determine properties influencing the magnetic field of the Radio Arc. I then detail a study of some of the newly-discovered faint threads to compare their properties with those of the previously-studied threads in the region. I begin by comparing their brightness distributions, focusing on how the brightness of the filaments varies throughout the thread lengths. I then compare their magnetic field distributions with those of the previously studies threads. These comparisons provide insight into the GC magnetic field, helping us determine how this field relates to other magnetic fields in the Milky Way.
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984271451802771