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Disc Winds and Line-Width Distributions in Active Galactic Nuclei

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dc.contributor.advisorHall, Patrick B
dc.creatorChajet, Laura Susana
dc.date.accessioned2016-09-20T16:48:32Z
dc.date.available2016-09-20T16:48:32Z
dc.date.copyright2015-12-11
dc.date.issued2016-09-20
dc.date.updated2016-09-20T16:48:31Z
dc.degree.disciplinePhysics And Astronomy
dc.degree.levelDoctoral
dc.degree.namePhD - Doctor of Philosophy
dc.description.abstractWe study Active Galactic Nucleus (AGN) emission-line profiles by combining an improved version of the accretion disc-wind model of Murray & Chiang with the magnetohydrodynamic model of Emmering et al. We consider central objects with different masses and/or luminosities. We show how the shape, broadening and shift of the C IV line depend not only on the viewing angle to the object but also on the wind launching angle, especially for small launching angles. We have compared the dispersions in our model C IV line-width distributions to observational upper limits on that dispersion, considering both smooth and clumpy torus models. Following Fine et al., we transform that scatter in the profile line-widths into a constraint on the torus geometry. We show how the half-opening angle of the obscuring structure depends on the mass and luminosity of the central object.
dc.identifier.urihttp://hdl.handle.net/10315/32231
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectAstrophysics
dc.subject.keywordsActive galaxies
dc.subject.keywordsActive galactic nuclei
dc.subject.keywordsQuasars
dc.subject.keywordsEmission lines
dc.titleDisc Winds and Line-Width Distributions in Active Galactic Nuclei
dc.typeElectronic Thesis or Dissertation

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