Skip to main content
SpringerLink
Log in

Red-Shift Absorption Spectrum of the Cygnus-A Radio Source

  • Letter
  • Published:

From Nature

View current issue Submit your manuscript

Abstract

A MEASUREMENT to check the 21-cm. hydrogen line absorption spectrum of Cygnus-A (19N4A) reported by Lilley and McClain1 is important in view of the cosmological significance of their result. The absorption was observed by these authors within a 3 Mc./s. band centred on 1341 Mc./s. and was considered to be due to absorption in a neutral hydrogen cloud associated with the Cygnus-A source and receding with it at the optically determined2 velocity of 16,800 km./sec.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Lilley, A. E., and McClain, E. F., Astrophys. J., 123, 172 (1956).

    Article  ADS  Google Scholar 

  2. Baade, W., and Minkowski, R., Astrophys. J., 119, 206 (1954).

    Article  ADS  CAS  Google Scholar 

  3. Muller, C. A., Paris Symposium on Radio Astronomy, edit. Bracewell, R. N. (Stanford University Press, 1959).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Jodrell Bank Experimental Station, University of Manchester,

    R. D. DAVIES & R. C. JENNISON

Authors
  1. R. D. DAVIES
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. C. JENNISON
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

DAVIES, R., JENNISON, R. Red-Shift Absorption Spectrum of the Cygnus-A Radio Source. Nature 184, 803–804 (1959). https://doi.org/10.1038/184803b0

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/184803b0

  • Springer Nature Limited

Search

Navigation