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OverviewThis thesis presents a study of the origin of an apparently extended X-ray emission associated with the Galactic ridge. The study was carried out with broadband spectra obtained from mapping observations in the Galactic bulge region conducted in 2005–2010 by the Suzaku space X-ray observatory. The spectra were analyzed with a newly constructed X-ray spectral model of an accreting white dwarf binary that is one of the proposed candidate stars for the origin of the Galactic ridge emission in the higher energy band. Fitting of the observed Galactic ridge spectra with the model showed that there is another spectral component that fills the gap between the observed X-ray flux and the component expected from the accreting white dwarf spectral model in the lower energy band. This additional soft spectral component was nicely explained by an X-ray spectral model of normal stars. The result, together with previously reported high-resolution imaging results, strongly supports the idea that the Galactic ridge X-ray emission is an assembly of dim, discrete X-ray point sources. Full Product DetailsAuthor: Takayuki YuasaPublisher: Springer Verlag, Japan Imprint: Springer Verlag, Japan Edition: 2013 ed. Dimensions: Width: 15.50cm , Height: 0.90cm , Length: 23.50cm Weight: 2.701kg ISBN: 9784431547174ISBN 10: 4431547177 Pages: 154 Publication Date: 26 June 2015 Audience: Professional and scholarly , Professional & Vocational Format: Paperback Publisher's Status: Active Availability: Manufactured on demand  We will order this item for you from a manufactured on demand supplier. Table of ContentsReviewsAuthor InformationDr. Takayuki Yuasa Department of Physics, Graduate School of Science The University of Tokyo, Japan Tab Content 6Author Website:Countries AvailableAll regions |
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