Abstract
This paper reports upon an observation of hard X-radiation from the direction of M87. Earlier (Haymes et al., 1968a), we reported the apparent detection of hard radiation from the general direction of Virgo; the experiment discussed here, conducted 16 months later, recorded approximately the same flux from a smaller region of sky that tends to isolate M87 as the most likely candidate for the source.
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Fishman, G.J., Harnden, F.R., Haymes, R.C. (1970). The Flux of Hard Radiation from M87. In: Gratton, L. (eds) Non-Solar X- and Gamma-Ray Astronomy. International Astronomical Union/Union Astronomique Internationale, vol 37. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3311-4_16
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DOI: https://doi.org/10.1007/978-94-010-3311-4_16
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