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Rapid Variations in the High Energy X-ray Flux from Cyg X-1

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Abstract

THE intensity of X-rays in the energy range 22.5–154 keV from the X-ray source Cyg X–1 was monitored for about 3 h on the night of April 5, 1971, using a balloon-borne telescope. There were pronounced variations in the intensity and presumably energy spectrum of the source in time periods of the order of a few minutes.

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Authors and Affiliations

  1. Tata Institute of Fundamental Research, Bombay, 5

    P. C. AGRAWAL, G. S. GOKHALE, V. S. IYENGAR, P. K. KUNTE, R. K. MANCHANDA & B. V. SREEKANTAN

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  1. P. C. AGRAWAL
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  2. G. S. GOKHALE
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  3. V. S. IYENGAR
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  4. P. K. KUNTE
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  5. R. K. MANCHANDA
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  6. B. V. SREEKANTAN
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AGRAWAL, P., GOKHALE, G., IYENGAR, V. et al. Rapid Variations in the High Energy X-ray Flux from Cyg X-1. Nature 232, 38–40 (1971). https://doi.org/10.1038/232038a0

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  • DOI: https://doi.org/10.1038/232038a0

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