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Permanent link (DOI): https://doi.org/10.7939/R3K06XC8C

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Radiation from particles revolving around a magnetized Schwarzschild black hole Open Access

Descriptions

Other title
Subject/Keyword
Gravitational Physics
Black Holes
Radiation
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Tzounis, Christos C
Supervisor and department
Frolov, Valeri P. (Physics)
Page, Don N. (Physics)
Examining committee member and department
Woolgar, Eric (Mathematics)
de Montigny, Marc (Physics, Campus Saint-Jean)
Frolov, Valeri P. (Physics)
Booth, Ivan (Mathematics)
Page, Don N. (Physics)
Department
Department of Physics
Specialization

Date accepted
2016-11-28T11:10:02Z
Graduation date
2017-06:Spring 2017
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
One of the methods of study of black holes in astrophysics is based on broaden- ing of the spectrum of radiation of ionized iron atoms. The line Kα associated with iron emission at 6.4 keV is very narrow. If such an ion is revolving around a black hole, this line is effectively broadened as a result of the Doppler and gravitational redshift effects. The profile of the broadened spectrum contains information about the gravitational field of the black hole. In the presence of a regular magnetic field in the vicinity of a black hole, the characteristics of the motion of charged ions are modified. In particular, their innermost stable circular orbits become closer to the horizon. The purpose of this work is to study how this effect modifies the spectrum broadening of lines emitted by such an ion. Our final goal is to analyze whether the change of the spectrum profiles can give us information about the magnetic field in the black hole vicinity.
Language
English
DOI
doi:10.7939/R3K06XC8C
Rights
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
Citation for previous publication
V. P. Frolov, A. A. Shoom and C. Tzounis, “Radiation from an emitter revolving around a magnetized nonrotating black hole,” Phys. Rev. D 90, no. 2, 024027 (2014)V. P. Frolov, A. A. Shoom and C. Tzounis, “Spectral line broadening in magnetized black holes,” JCAP 1407, 059 (2014)

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