Generation and Collimation Mechanisms of Relativistic Jets in AGN
| dc.contributor.advisor | Jha, Ramanand (Professor) | |
| dc.contributor.author | Shiferaw, Abera | |
| dc.date.accessioned | 2018-06-13T06:33:36Z | |
| dc.date.accessioned | 2023-11-09T11:24:00Z | |
| dc.date.available | 2018-06-13T06:33:36Z | |
| dc.date.available | 2023-11-09T11:24:00Z | |
| dc.date.issued | 2006-06 | |
| dc.description.abstract | Most of the phenomenon performed by active galaxies are left uncovered among which highly collimated jet-like out°ows, that span hounders of Kpc to Mpc via interstellar medium, is the one. Our current research, which is fully analytic, is targeted on ¯nding the plausible mechanism of jets generation and collimation in these Mysterious active galaxies. In this work, Kerr geometry is preferred to describe the dynamics of electromagnetic ¯eld and plasma °uid around rotating Kerr black hole. we ¯nd out that the force-free region, in the immediate neighborhood of rotating black hole, is the site where jets generation and launching are fabricated. Toroidal magnetic ¯eld and centrifugal force, on the accreting plasma °uid, are the key elements for the generation and launching of jets. Collimation of jets is the responsibility of: magnetic hoop stress, radiation pressure, from the accretion disk, and centrifugal force. Also, magnetic ¯eld is found to be crucially important in extracting the spin energy of the black hole. Energy and angular momentum are continuously supplied to the jets through di®erential rotation | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/574 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Relativistic Jets in AGN | en_US |
| dc.title | Generation and Collimation Mechanisms of Relativistic Jets in AGN | en_US |
| dc.type | Thesis | en_US |