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Absence of detectable X rays from supercluster candidate 4U0134—11

Nature volume 270, pages 158–159 (1977)Cite this article

Abstract

A CORRELATION between a small subset of high galactic latitude X-ray sources and superclusters of galaxies has been suggested1. The existence of superclusters (that is, clusters of clusters of galaxies) was first discussed in the context of optical observations2,3. A hot intrasupercluster gas could lead to detectable X-ray emission as well as provide a large fraction of the mass necessary to close the universe4. The Goddard, Space Flight Center Cosmic X-ray Spectroscopy experiment onboard Orbiting Solar Observatory 8 (OSO 8) scanned directly over the position of 4U0134—11, one of the three 4U sources associated with a supercluster. We did not observe X rays from this source with an upper limit to the source strength a factor of 6 below the catalogued Fourth Uhuru (4U) strength.

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Authors and Affiliations

  1. Laboratory for High Energy Astrophysics, NASA/Goddard Space Flight Center, Greenbelt, Maryland, 20771

    S. H. PRAVDO, R. F. MUSHOTZKY, R. H. BECKER, E. A. BOLDT, S. S. HOLT, P. J. SERLEMITSOS & J. H. SWANK

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  1. S. H. PRAVDO
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  2. R. F. MUSHOTZKY
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  3. R. H. BECKER
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  4. E. A. BOLDT
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  5. S. S. HOLT
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  6. P. J. SERLEMITSOS
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  7. J. H. SWANK
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PRAVDO, S., MUSHOTZKY, R., BECKER, R. et al. Absence of detectable X rays from supercluster candidate 4U0134—11. Nature 270, 158–159 (1977). https://doi.org/10.1038/270158a0

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  • DOI: https://doi.org/10.1038/270158a0

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