Discrete Sources of Galactic Radio Frequency Noise

Article metrics


IN a recent communication1 an outline was given of investigations of the variable galactic noise received from the constellation of Cygnus, first noticed by Hey, Parsons and Phillips2. The characteristics of the radiation were described, and evidence was given of its origin in a discrete source. A search has since been made over about one quarter of the celestial sphere for other such sources. The region investigated is roughly enclosed by the co-ordinates : The frequency used was 100 Mc./s., with an overall sensitivity of 10−24 watts m.−2 (c./s.)-1, and the technique and equipment employed were as previously described1,3.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Bolton, J. G., and Stanley, G. J., Nature, 161, 312 (1948).

  2. 2

    Hey, J. S., Parsons, S. J., and Phillips, J. W., Nature, 158, 234 (1946).

  3. 3

    Bolton, J. G., and Stanley, G. J., Aust. J. Sci. Res., A, 1 (1) (1948).

  4. 4

    Henyey, L. G., and Keenan, P. C., Astrophys. J., 91, 625 (1940).

  5. 5

    Townes, C. H., Astrophys. J., 105, 235 (1947).

  6. 6

    Moxon, L. A., Nature, 158, 758 (1946).

  7. 7

    Pawsey, J. L., Nature, 158, 633 (1946).

  8. 8

    Greenstein, J. L., Henyey, L. G., and Keenan, P. C., Nature, 157, 806 (1946).

  9. 9

    Saha, M. N., Nature, 158, 549 (1946).

  10. 10

    Reber, G., and Greenstein, J. L., Observatory, 67, 15 (1947).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

BOLTON, J. Discrete Sources of Galactic Radio Frequency Noise. Nature 162, 141–142 (1948) doi:10.1038/162141a0

Download citation

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.