Letter | Published:

Radio structure of the ‘double quasar’ 4C11.50

Naturevolume 247pages527528 (1974) | Download Citation

Subjects

Abstract

WAMPLER et al.1 have recently announced the discovery of a close pair of optical quasars associated with the radio source 4C11.50. The brighter quasar (a) has a redshift of 0.436, whereas its companion (b), 4.8 arc s away in position angle 95°, has a much larger redshift of 1.901. The statistical probability of a chance coincidence is small and this has led to speculation that, despite the discordant redshifts and the lack of any visible connection, the objects may be physically associated. Hazard et al.2 report unpublished observations from Cambridge and Westerbork which suggest that the radio structure is double, with one component coincident with quasar a. Here, we investigate further the alignment of the radio structure, seeking in particular any evidence of a radio connection between the two optical quasars.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Wampler, E. J., Baldwin, J. A., Burke, W. L., Robinson, L. B., and Hazard, C., Nature, 246, 203–205 (1973).

  2. 2

    Hazard, C., Sargent, W. L., Baldwin, J. A., and Wampler, E. J., Nature, 246, 205–207 (1973).

  3. 3

    Wills, B. J., Wills, D., and Douglas, J. N., Astr J., 78, 521–535 (1973).

Download references

Author information

Affiliations

  1. University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire

    • D. STANNARD
    • , P. N. WILKINSON
    • , R. S. WARWICK
    •  & R. J. DAVIS

Authors

  1. Search for D. STANNARD in:

  2. Search for P. N. WILKINSON in:

  3. Search for R. S. WARWICK in:

  4. Search for R. J. DAVIS in:

About this article

Publication history

Received

Issue Date

DOI

https://doi.org/10.1038/247527a0

Comments

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.