Wheaton, William A.; Ling, J. C.; Skelton, R. T.; Paciesas, W. S.; Harmon, B. A.; Fishman, G. J.
(1993-09-22)
We present available BATSE Earth-occultation observations of Cen A (the brightest extragalactic hard X-ray source) and NGC 4151 (the archetypical Seyfert I) from 1991 May through 1992 February, in the 20 keV to 1.5 MeV ...