NASA NTRS · 19820032847
Soft X-ray spectral variations in Scorpius X-1
Abstract
Soft X-ray spectra of Scorpius X-1 obtained with the low-energy detectors of the A-2 experiment on HEAO 1 are presented. The raw count spectra are deconvolved using the Kahn and Blissett technique to reveal the presence of oxygen absorption in the range 0.5-0.7 keV. The strength of this feature is shown to vary on a time scale of order hours. These results are interpreted as evidence for variable X-ray photoionization of circumsource material in the system. An alternative model, involving variable Compton broadening of an oxygen edge, is also discussed.
Keep this discovery
Explore connections, maps & timelines
Kahn, S. M., Charles, P. A., Bowyer, S., Blissett, R. J.. 1981-11-15. Soft X-ray spectral variations in Scorpius X-1. https://ntrs.nasa.gov/citations/19820032847
Cite the original work for its findings. Save a collection to share your selection of sources.