Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"X-ray Surveys"”.
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Machine learning from hard x-ray surveys: applications to magnetic cataclysmic variable studies
… the production of unbiased future soft gamma-ray source catalogues. The feature extraction process on an initial candidate list is described together with feature merging. Three trainng and testing sets are created in order to deal with the diverse time-scales encountered when dealing with the …
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Studies of TeV Gamma-Ray Sources in the Hydrogen-Alpha Optical Line
… using different electromagnetic wavebands such X-rays, gamma-rays, and radio wavelengths. Since then multi-wavelength studies of sources have started to explain their physical properties. The links between the TeV (1012 eV) gamma-ray emission of HESS J1825-137 and an optical supernova remnant …
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Photometric variability of X-ray sources in the galactic bulge
… Survey (GBS) undertakes to find and classify X-ray sources in the Galactic Bulge. Of these X-ray sources, there is likely a significant minority which are Low Mass X-ray Binaries: systems containing either a neutron star or black hole that is accreting matter from a roughly stellar mass companion …
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Towards a complete census of active galactic nuclei in the nearby Universe
… are not identified in large-scale optical surveys, most likely due to strong circumnuclear star-formation activity and/or extinction through the host galaxy. In the second part of this thesis, we use sensitive hard X-ray (2-10 keV) and mid-IR constraints to calculate bolometric luminosities …