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Title Law
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Fast Spectral Variability in the X-ray Emission of Accreting Black Holes
This thesis brings together the various techniques of X-ray spectral analysis in order to examine the properties of black holes that vary in mass by several orders of magnitude. In all these systems it is widely accepted that the X-ray emission is produced by Compton up-scattering of lower energy seed photons in a hot corona or accretion flow, and here these processes are examined through a study of the X-ray spectral variability of each source. A new technique is introduced, in which models are fitted to over 2 million X-ray spectra on time-scales as short as 16 ms, and subsequently it is shown that the nature of the correlation between intensity and spectral index is strongly dependent upon the spectral state of the black hole. Finally, the results of an extensive survey of nearby galactic nuclei using the Chandra X-ray telescope are presented in the form of images and spectra, and these results are used along with data from the literature to search for Compton-thick nuclei.
Note-and-sketch books of G. J. Skipper, 1873-1934
Containing information on many of his projects which were mainly private houses, local authority housing, schools and commercial premises, mostly in Norfolk and Somerset.
Hangin' with Winners
What makes a winner? Sure, it's a vague question, but one that's essential for highly driven and motivated individuals to ask. And it it often takes a lifetime of experiences to find answers. Iowa author Ray Cole, a television broadcasting executive whose hall of fame career spans five decades, explores this question and brings together a wealth of knowledge in "Hangin' with Winners: A Lifetime of Connections, Anecdotes and Lessons Learned." Cole interviewed titans in all kinds of industries and places - television, politics and philanthropy - and compiled their thoughts on "winning" and success. Read stories about, and advice from, acknowledged winners like Bob Iger, George Bodenheimer, Dia...
Brief ? an J. Ray
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The Skipper
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MotorBoating
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