On the efficiency of production of the Fe Kalpha emission line in neutral matter (2009)
Yaqoob, T., Murphy, K. D., Miller, L., Turner, T. J.
The absolute luminosity of the Fe Kalpha emission line from matter illuminated by X-rays in astrophysical sources is nontrivial to calculate except when the line-emitting medium is optically-thin to...
On the Prospect of Constraining Black-Hole Spin Through X-ray Spectroscopy of Hotspots (2009)
Murphy, K. D., Yaqoob, T., Dovčiak, M., Karas, V.
Future X-ray instrumentation is expected to allow us to significantly improve the constraints derivedfrom the Fe K lines in AGN, such as the black-hole angular momentum (spin) and the inclination...
An X-ray Spectral Model for Compton-Thick Toroidal Reprocessors (2009)
The central engines of both type 1 and type 2 AGNs are thought to harbor a toroidal structure that absorbs and reprocesses high-energy photons from the central X-ray source. If the reprocessor is...
Survey of High Performance RISC Microprocessors (1994)
K.D. Murphy, K D Murphy, N.B. MacDonald, N B Macdonald
this report is to survey a number of leading RISC processors which are deployed in off the shelf scientific workstations, and in some cases massively parallel multi-computers. 1 Introduction