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High frequency radio observations of the Stephan's Quintet region

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Abstract

RADIO observations have been reported for several apparently interacting astronomical systems1,4. These observations do not provide conclusive data as to the frequency of occurrence of radio emission from multiple systems compared with that for normal galaxies. Although the detected radio fluxes do not generally fall in the ‘radio galaxy’ range, there is evidence that for some interacting systems at least, there is a statistical excess of the number of radio sources in their vicinity5,6. The aperture synthesis observations mostly show sources coincident with member galaxies; a few show emission from regions between the galaxies. In the case of Stephan's Quintet, observations7 with the Westerbork Synthesis Radio Telescope (WSRT) at 1.415 GHz suggest an arc-shaped source partially encircling a point source centred on NGC7319.

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Authors and Affiliations

  1. Department of Astronomy and Space Science, State University of New York at Albany, Albany, New York, 12222

    MAY A. KAFTAN-KASSIM, JACK W. SULENTIC & GOPAL SISTLA

Authors
  1. MAY A. KAFTAN-KASSIM
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  2. JACK W. SULENTIC
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  3. GOPAL SISTLA
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KAFTAN-KASSIM, M., SULENTIC, J. & SISTLA, G. High frequency radio observations of the Stephan's Quintet region. Nature 253, 176–177 (1975). https://doi.org/10.1038/253176a0

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  • DOI: https://doi.org/10.1038/253176a0

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