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A new view of the galactic plane with EXOSAT

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Abstract

A new X-ray image of the galactic plane has been produced using the 45 arcmin square field of view of the Medium Energy Instrument on EXOSAT. This image shows a total of 64 sources including 18 new ones which include the first observation of persistent emission from the globular cluster bursters Terzan 1 and Terzan 5. The most important discovery from this image is a 2° wide ridge of diffuse emission symmetrical about the plane and extending from the galactic centre to 1″=±40°. The spectrum of this emission appears to be hard (α ∼ 1.2) with no significant absorption.

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Authors and Affiliations

  1. X-ray Astronomy Group, Physics Department, University of Leicester, LE1 7RH, Leicester, UK

    M. J. L. Turner, R. S. Warwick, M. G. Watson & R. Willingale

Authors
  1. M. J. L. Turner
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  2. R. S. Warwick
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  3. M. G. Watson
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  4. R. Willingale
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Turner, M.J.L., Warwick, R.S., Watson, M.G. et al. A new view of the galactic plane with EXOSAT. Space Sci Rev 40, 437–441 (1985). https://doi.org/10.1007/BF00179854

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