ERA

Download the full-sized PDF of Escape of Charged Particles Moving around Weakly Magnetized Black HolesDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3V40K71N

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Escape of Charged Particles Moving around Weakly Magnetized Black Holes Open Access

Descriptions

Other title
Subject/Keyword
Magnetized black hole
escape black hole
chaos black hole
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Al Zahrani, Abdallah M.
Supervisor and department
Valeri P. Frolov, Physics Department
Examining committee member and department
Sharon M. Morsink, Physics Department
Don N. Page, Physics Department
Richard Marchand, Physics Department
DavidW. Hobill, Physics Department, University of Calgary
Department
Department of Physics
Specialization

Date accepted
2014-04-01T09:28:23Z
Graduation date
2014-06
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
Magnetic fields have become an essential ingredient of black hole astrophysics. The study of simplified models of magnetized black holes can shed light on some of the complicated phenomena observed near astrophysical black holes. In this thesis we studied the three-dimensional motion of charged particles in the background of Schwarzschild and Kerr black holes immersed in a weak uniform axisymmetric magnetic field. We studied in particular the escape of charged particles after they are kicked out of circular orbits. We started with neutral particles and gave analytical conditions for their escape. Unlike with the Schwarzschild black hole, the escape conditions were non-trivial when the black hole is rotating where escape depends essentially on the particle initial position. It was not possible to give analytical conditions for charged particles escape. The magnetic field renders their equations of motion non-integrable in general. Numerical study of the problem revealed that the dynamics of charged particles near magnetized black holes is generally chaotic. With the help of the basin of attraction approach, we could give empirical formulae for guaranteed escape. We found that the final fate of a charge particle is nearly determined by its proximity to the black holes. No general relationship between the chaoticness in the dynamics and black hole rotation could be found.
Language
English
DOI
doi:10.7939/R3V40K71N
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-06-15T07:02:02.917+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 1208988
Last modified: 2015:10:12 14:17:15-06:00
Filename: main.pdf
Original checksum: e00491d407e9c6de5b38170223370038
Well formed: true
Valid: true
Page count: 83
Activity of users you follow
User Activity Date