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Galactic X-Rays from Unresolved Flare Stars

Nature Physical Science volume 234, pages 75–76 (1971)Cite this article

An Erratum to this article was published on 10 January 1972

Abstract

HUDSON et al.1 have suggested the existence of a class of unresolved low intrinsic luminosity X-ray sources to account for their own observations and those of Cooke et al.2 of a galactic disk component of diffuse X-radiation. I shall show that X-ray bursts from red dwarf flare stars may generate a time averaged disk intensity above 1.5 keV, which, conservatively estimated, satisfies the observational requirements, and that current estimates of the luminosity3,4 of individual flare X-ray bursts imply a disk intensity substantially greater than that observed.

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References

  1. Hudson, H. S., Peterson, L. E., and Schwartz, D. A., Nature, 230, 177 (1971).

    Article  ADS  Google Scholar 

  2. Cooke, B. A., Griffiths, R. E., and Pounds, K. A., Nature, 224, 134 (1969).

    Article  ADS  Google Scholar 

  3. Grindlay, J. A., Astrophys. J., 162, 187 (1970).

    Article  ADS  Google Scholar 

  4. Gurzadyan, G. A., Astron. Astrophys., 13, 348 (1971).

    ADS  Google Scholar 

  5. Lovell, A. C. B., Quart. J. Roy. Astron. Soc., 12, 98 (1971).

    ADS  Google Scholar 

  6. Unsold, A., Intern. Astron. Union Symp. No. 4, Radio Astronomy (edit, by van de Hülst, H. C.) (Reidel, Dordrecht, 1957).

    Google Scholar 

  7. Edwards, P. J., and McQueen, M., Paper OG-90, Twelfth Intern. Conf. Cosmic Rays, Hobart, 1971, Conference Papers, 1, 323 (1971).

    ADS  Google Scholar 

  8. Kunkel, W. E., Astrophys. J., 161, 503 (1970).

    Article  ADS  Google Scholar 

  9. Kunkel, W. E., Pub. Astron. Soc. Pacific, 82, 1341 (1970).

    Article  ADS  Google Scholar 

  10. Arakelian, M. A., Intern. Astron. Union Colloquium, Non-Periodic Phenomena in Variable Stars, Budapest (1968).

    Google Scholar 

  11. Thomas, R. J., and Teske, R. G., Solar Phys., 16, 431 (1971).

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Physics Department, University of Otago, Dunedin

    P. J. EDWARDS

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  1. P. J. EDWARDS
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EDWARDS, P. Galactic X-Rays from Unresolved Flare Stars. Nature Physical Science 234, 75–76 (1971). https://doi.org/10.1038/physci234075a0

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