Comparison of High and Low Flux States of the Microquasar XTE J1748-288

Andy P. Brinck

RXTE spectral data for the microquasar XTE J1748-288 was retrieved and reduced using HEASOFT programming tools. The spectral files from the Proportional Counter Array (2-60 keV) and the High Energy X-ray Timing Explore (60-250 keV) were combined in the X-ray spectral fitting and analysis program XSPEC. Within XSPEC a model was created to account for the thermal and non-thermal emissions prodcued from radiation processes within the extreme environments of black holes. This model was then fit to a high and low flux state spectra in order to verify theoretical predictions of radiation process in microquasars.