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The 26.13 MHz absorption line in the direction of Cassiopeia A

Nature volume 294, pages 135–136 (1981)Cite this article

Abstract

It has recently been suggested1 that the absorption line v = 26.13 MHz that we had detected2 in the direction of Cassiopeia A might be a recombination line due either to carbon (C631α) present in H I clouds or to heavier elements of hot gas. Observations reported here taken in February 1981 suggest that the low-frequency attenuation in the spectrum of Cas A is due to the presence of a cold cloud of ionized carbon.

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References

  1. Blake, D. H., Crutcher, R. M. & Watson, W. D. Nature 287, 707–708 (1980).

    Article  ADS  CAS  Google Scholar 

  2. Konovalenko, A. A. & Sodin, L. G. Nature 283, 360–361 (1980).

    Article  ADS  CAS  Google Scholar 

  3. Konovalenko, A. A. & Sodin, L. G. Soviet astr. J. Lett. 5, 663–664 (1979).

    CAS  Google Scholar 

  4. Shaver, P. A. Pramana 5, 1–29 (1975).

    Article  ADS  Google Scholar 

  5. Shaver, P. A. Astr. Astrophys. 49, 1–16 (1976).

    ADS  CAS  Google Scholar 

  6. Casse, J. L. & Shaver, P. A. Astr. Astrophys. 61, 805–808 (1977).

    ADS  Google Scholar 

  7. Shaver, P. A., Pedlar, A. & Davis, R. D. Mon. Not. R. astr. Soc. 177, 45–50 (1976).

    Article  ADS  CAS  Google Scholar 

  8. Braude, S. Ya. & Tchayevski, E. V. Izv. Vuzov, Radiofiz. 5, 211–215 (1962).

    Google Scholar 

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Authors and Affiliations

  1. Division of Radio Astronomy at the Institute of Radiophysics and Electronics, Ukrainian Academy of Sciences, Kharkov, USSR

    A. A. Konovalenko & L. G. Sodin

Authors
  1. A. A. Konovalenko
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  2. L. G. Sodin
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Konovalenko, A., Sodin, L. The 26.13 MHz absorption line in the direction of Cassiopeia A. Nature 294, 135–136 (1981). https://doi.org/10.1038/294135a0

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