Full Mueller imaging: direction dependent corrections in polarimetric radio imaging
| dc.contributor.advisor | Taylor, Andrew Russell | |
| dc.contributor.author | Jagannathan, Preshanth | |
| dc.date.accessioned | 2018-09-06T13:26:31Z | |
| dc.date.available | 2018-09-06T13:26:31Z | |
| dc.date.issued | 2018 | |
| dc.date.updated | 2018-08-24T10:05:27Z | |
| dc.description.abstract | Magnetic fields pervade the universe, spanning a multitude of scales from the dipolar field on Earth, to the largest gravitationally bound structures such as galaxy clusters [1]. The magnetic fields play a vital role in the evolution of these astronomical systems. In addition to the multitude of scales, magnetic fields are present in different astronomical systems of varying strengths. The strongest observed astronomical magnetic fields are in neutron stars with a field strength of ≈ 1015 G [2], far higher than any man-made fields till date. In stark contrast magnetic fields in the interstellar medium while ubiquitous are only a few µG in field strength. Many fundamental processes in astrophysics have magnetism at their heart, be it cosmic ray particle acceleration, star formation, or the launch of radio galaxy jets, pulsars, etc. One key fundamental process that allows us to detect and characterize cosmic magnetic fields with radio astronomy is the polarization of synchrotron radiation. Synchrotron radiation is intrinsically polarized broadband continuum radiation emitted by relativistic charged particles accelerated by the presence of magnetic fields. The emissivity of the synchrotron radiation is tied to the magnetic field strength B and the spectral index α (defined such that the flux density S ∝ ν −α ) such that ε ∝ B 1+α . | |
| dc.identifier.apacitation | Jagannathan, P. (2018). <i>Full Mueller imaging: direction dependent corrections in polarimetric radio imaging</i>. (). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/28421 | en_ZA |
| dc.identifier.chicagocitation | Jagannathan, Preshanth. <i>"Full Mueller imaging: direction dependent corrections in polarimetric radio imaging."</i> ., University of Cape Town ,Faculty of Science ,Department of Astronomy, 2018. http://hdl.handle.net/11427/28421 | en_ZA |
| dc.identifier.citation | Jagannathan, P. 2018. Full Mueller imaging: direction dependent corrections in polarimetric radio imaging. University of Cape Town. | en_ZA |
| dc.identifier.ris | TY - Thesis / Dissertation AU - Jagannathan, Preshanth AB - Magnetic fields pervade the universe, spanning a multitude of scales from the dipolar field on Earth, to the largest gravitationally bound structures such as galaxy clusters [1]. The magnetic fields play a vital role in the evolution of these astronomical systems. In addition to the multitude of scales, magnetic fields are present in different astronomical systems of varying strengths. The strongest observed astronomical magnetic fields are in neutron stars with a field strength of ≈ 1015 G [2], far higher than any man-made fields till date. In stark contrast magnetic fields in the interstellar medium while ubiquitous are only a few µG in field strength. Many fundamental processes in astrophysics have magnetism at their heart, be it cosmic ray particle acceleration, star formation, or the launch of radio galaxy jets, pulsars, etc. One key fundamental process that allows us to detect and characterize cosmic magnetic fields with radio astronomy is the polarization of synchrotron radiation. Synchrotron radiation is intrinsically polarized broadband continuum radiation emitted by relativistic charged particles accelerated by the presence of magnetic fields. The emissivity of the synchrotron radiation is tied to the magnetic field strength B and the spectral index α (defined such that the flux density S ∝ ν −α ) such that ε ∝ B 1+α . DA - 2018 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2018 T1 - Full Mueller imaging: direction dependent corrections in polarimetric radio imaging TI - Full Mueller imaging: direction dependent corrections in polarimetric radio imaging UR - http://hdl.handle.net/11427/28421 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/28421 | |
| dc.identifier.vancouvercitation | Jagannathan P. Full Mueller imaging: direction dependent corrections in polarimetric radio imaging. []. University of Cape Town ,Faculty of Science ,Department of Astronomy, 2018 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/28421 | en_ZA |
| dc.language.iso | eng | |
| dc.publisher.department | Department of Astronomy | en_ZA |
| dc.publisher.faculty | Faculty of Science | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.subject.other | Polarimetric Radio Imaging | |
| dc.subject.other | astronomy | |
| dc.title | Full Mueller imaging: direction dependent corrections in polarimetric radio imaging | |
| dc.type | Doctoral Thesis | |
| dc.type.qualificationlevel | Doctoral | |
| dc.type.qualificationname | PhD | |
| uct.type.filetype | Text | |
| uct.type.filetype | Image |