Browsing by Keyword "X Rays"
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X-ray spectral evolution of high redshift quasars
(IOP Publishing, 1994)At z approx. equals 3, the x-ray spectra of radio-loud and radio-quiet quasars are different. High-redshift radio-quiet quasars either have large absorbing columns, NH, and steeper power law spectral indices, alphaepsilon, ...