Abstract
THE X-ray telescopes on OAO-Copernicus have been used to search for X-ray emission from η Carinae. The instrumentation has been described elsewhere1–2; briefly, it comprises two paraboloidal X-ray telescopes operating in the energy ranges 0.5–1.5 and 1.5–4.6 keV, with a separate collimated proportional counter operating from 2.5–7.5 keV.
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GRIFFITHS, R., PEACOCK, A. & PAGEL, B. Absence of soft X rays from Eta Carinae. Nature 250, 714–715 (1974). https://doi.org/10.1038/250714a0
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DOI: https://doi.org/10.1038/250714a0
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