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Angular Size of the High Energy X-ray Source in the Crab Nebula

Nature volume 226, pages 733–734 (1970)Cite this article

Abstract

THIS article reports new data on the spatial structure of the source of 25 to 100 keV X-rays in the Crab nebula, obtained with a balloon-borne X-ray modulation collimator. The angular diameter of the Crab for energies of 1.2 to 12 keV has been measured previously in two rocket experiments by lunar occultation1 and by modulation collimator2. Both measurements showed that the low energy X-rays come from an extended region one to two arc minutes in diameter centred on the visible nebula. Since then the radio3 and optical4 pulsar NP 0532 has been identified with a central star in the nebula5.

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Authors and Affiliations

  1. Lincoln Laboratory, Massachusetts Institute of Technology,

    F. W. FLOYD JUN.

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  1. F. W. FLOYD JUN.
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FLOYD, F. Angular Size of the High Energy X-ray Source in the Crab Nebula. Nature 226, 733–734 (1970). https://doi.org/10.1038/226733a0

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