NASA NTRS · 19780024044
Galactic center iron line emission
Abstract
Data from the Goddard Space Flight Center experiment on HEAO 1 were examined for galactic center iron line emission. Evidence for a 6.8 keV line from the summed flux within 10 deg longitude and 10 deg latitude of the galactic center was found; however, firm limits cannot be put on the intrinsic line width. If the line emission is diffuse and cosmic-ray-induced, the calculations of Bussard et al (1978) yield an upper limit to c-12 4.44 MeV line emission, which is not inconsistent with the results of Haymes et al (1975). Significant contributions to the iron line from discrete sources can not be ruled out.
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Worrall, D. M., Boldt, E. A., Holt, S. S., Pravdo, S. H., Serlemitsos, P. J.. 1978-08-01. Galactic center iron line emission. https://ntrs.nasa.gov/citations/19780024044
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