Magnetic Field Decay Due to Gravitational Radiation in Neutron Star
| dc.contributor.advisor | Reshid, Remudin (PhD) | |
| dc.contributor.author | Gidey, Tesfay | |
| dc.date.accessioned | 2019-08-23T11:05:28Z | |
| dc.date.accessioned | 2023-11-04T12:22:47Z | |
| dc.date.available | 2019-08-23T11:05:28Z | |
| dc.date.available | 2023-11-04T12:22:47Z | |
| dc.date.issued | 11/3/2017 | |
| dc.description.abstract | In this thesis, magnetic _eld decay due to gravitational radiation in neutron star (NS) is theoretically studied. By considering the inuence of the \dynamo mechanism"on the generation of a strong magnetic _eld in NS. A NS formed as a large star die in a type II supernova, and their magnetic _elds during formation is 1012 Gauss and 1015 Gauss for both magnetars and pulars, respectively. But their magnetic _eld is decreased. Thus, this study focuses on by how much does the magnetic _eld decay using the mathematical calculation of decay law equation. Based on our _ndings, we have two results. The _rst result shows that, the magnetic _eld of a rotating NS depends only on the decaying time since the moment of inertia is constant. The second result also shows, the magnetic _eld of a rotating NS depends on the decaying time and rotational frequency since moment of inertia varies as a function of rotational frequency. The variation in moment of inertia causes to the variation in braking index as a function of rotational frequency. Thus, the quadrapole magnetic _eld is decaying for positive _ and increased for negative _ , respectively. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/18814 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Magnetic Field | en_US |
| dc.subject | Gravitational Radiation | en_US |
| dc.subject | Neutron Star | en_US |
| dc.title | Magnetic Field Decay Due to Gravitational Radiation in Neutron Star | en_US |
| dc.type | Thesis | en_US |