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008 180201s2017 ncua obm 000 0 eng d;

035 a| (Sirsi) o1021186512;

035 a| (OCoLC)1021186512;

049 a| EREE;

090 a| QB843.B55;

100 1 a| Culbreth, Shawn,e| author.?| UNAUTHORIZED;

245 12 a| A solution method determining the effect of spin upon gravitational effects in the surroundings of a black hole /c| by Shawn Culbreth.;

264 1 a| [Greenville, N.C.] :b| [East Carolina University],c| 2017.;

300 a| 131 pages :b| color illustrations;

336 a| textb| txt2| rdacontent;

337 a| computerb| c2| rdamedia;

338 a| online resourceb| cr2| rdacarrier;

347 a| text fileb| PDFc| 3.355 MB2| rda;

538 a| System requirements: Adobe Reader.;

538 a| Mode of access: World Wide Web.;

502 b| Ph. D.c| East Carolina Universityd| 2017;

500 a| Presented to the faculty of the Department of Physics;

500 a| Advisor: Orville Day;

500 a| Title from PDF t.p. (viewed June 6, 2018).;

520 3 a| Using the theory of General Relativity and quasi-normal modes (QNMs) from the Teukolsky equation as a source of quasi-periodic oscillations (QPOs) from black holes provides information about black hole mass and spin. This is related to standing wave resonance phenomena of gravitons and photons trapped in a gravitational potential well surrounding the black hole and provides evidence for the existence of standing wave gravitons in a high gravitational environment, which are observable by the QPO frequencies as infalling electrons interact with these resonance states. We calculate the QNM angular frequency as a function of spin parameter and create regression equations to relate these frequencies back to spin parameter. The QNM frequencies are what can be experimentally measured, and therefore are preferred as the independent variables. We then compare these equations to QPO data collected from the supermassive black hole Sgr A* and stellar mass black hole GRS1915+105 to calculate the spin parameter for each. The spin parameter of Sgr A* is calculated to be 0.431 plus or minus 0.075 and the spin parameter for GRS1915+105 is calculated to be -0.9875 plus or minus 0.0005. This indicates GRS1915+105 has a retrograde spin. Due to the precise measurement of the QPOs from GRS1915+105, we are able to calculate the mass of the black hole to be 10.09 Solar Masses using the necessity for consistency of mass and spin between the graviton and photon resonances.;

504 a| Includes bibliographical references.;

650 0 a| Black holes (Astronomy)=| ^A55603;

650 0 a| Gravitational fields.=| ^A139049;

653 a| Black Hole Spin;

653 a| Photon;

653 a| Resonance;

653 a| Black Hole Mass;

700 1 a| Day, Orville W.,e| degree supervisor.?| UNAUTHORIZED;

710 2 a| East Carolina University.b| Department of Physics.?| UNAUTHORIZED;

856 40 z| Access via ScholarShipu| http://hdl.handle.net/10342/6515;

949 o| wjh;

994 a| C0b| ERE;

596 a| 1 4;

998 a| 4815002;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 4815002-1001l| JNETm| JOYNERr| Ys| Yt| JNE3ETDu| 2/1/2018x| ETDz| JERESOURCE;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 4815002-2001l| HSLELECm| HSLr| Ys| Yt| HEETDu| 2/1/2018x| ETDz| HERESOURCE;

A solution method determining the effect of spin upon gravitational effects in the surroundings of a black hole / by Shawn Culbreth.

Author/creator	Culbreth, Shawn author.
Other author	Day, Orville W., degree supervisor.
Other author	East Carolina University. Department of Physics.
Format	Theses and dissertations
Publication	[Greenville, N.C.] : [East Carolina University], 2017.
Description	131 pages : color illustrations
Supplemental Content	Access via ScholarShip
Subjects	Black holes (Astronomy) Gravitational fields.

Summary	Using the theory of General Relativity and quasi-normal modes (QNMs) from the Teukolsky equation as a source of quasi-periodic oscillations (QPOs) from black holes provides information about black hole mass and spin. This is related to standing wave resonance phenomena of gravitons and photons trapped in a gravitational potential well surrounding the black hole and provides evidence for the existence of standing wave gravitons in a high gravitational environment, which are observable by the QPO frequencies as infalling electrons interact with these resonance states. We calculate the QNM angular frequency as a function of spin parameter and create regression equations to relate these frequencies back to spin parameter. The QNM frequencies are what can be experimentally measured, and therefore are preferred as the independent variables. We then compare these equations to QPO data collected from the supermassive black hole Sgr A* and stellar mass black hole GRS1915+105 to calculate the spin parameter for each. The spin parameter of Sgr A* is calculated to be 0.431 plus or minus 0.075 and the spin parameter for GRS1915+105 is calculated to be -0.9875 plus or minus 0.0005. This indicates GRS1915+105 has a retrograde spin. Due to the precise measurement of the QPOs from GRS1915+105, we are able to calculate the mass of the black hole to be 10.09 Solar Masses using the necessity for consistency of mass and spin between the graviton and photon resonances.
General note	Presented to the faculty of the Department of Physics
General note	Advisor: Orville Day
General note	Title from PDF t.p. (viewed June 6, 2018).
Dissertation note	Ph. D. East Carolina University 2017
Bibliography note	Includes bibliographical references.
Technical details	System requirements: Adobe Reader.
Technical details	Mode of access: World Wide Web.

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A solution method determining the effect of spin upon gravitational effects in the surroundings of a black hole / by Shawn Culbreth.

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