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Sources X Ultra-Lumineuses : Contreparties Optiques

Abstract : Despite much observational and theorical effort little is presently known about the nature of the luminous non-nuclear X-ray sources which appear to largely surpass the Eddington limit of a few solar masses. The first part of this work shows the multiwavelentgh study of a sample of these objects with ROSAT and XMM-Newton observations and through an optical survey done at OHP, ESO and CFHT. These objects have been studied for decades and for the first time several nebulæ are seen near the X-ray source. One of these nebulæ seem to be X-ray photoionised, meaning that the X-ray emission of this object surpasses the Eddington limit of more than several tenths solar masses ! The second part of this thesis is more dedicated to a technical task which consisted in writing a software used in the XMM-Newton Processing Pipeline.
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Contributor : Laurent Mirioni <>
Submitted on : Wednesday, November 10, 2004 - 3:07:16 PM
Last modification on : Thursday, April 23, 2020 - 2:26:29 PM
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  • HAL Id : tel-00007374, version 1



Laurent Mirioni. Sources X Ultra-Lumineuses : Contreparties Optiques. Astrophysique [astro-ph]. Université Louis Pasteur - Strasbourg I, 2002. Français. ⟨tel-00007374⟩



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