Abstract
We report simultaneous observations of circular polarization of 3C 138, 3C 279, and BL Lacertae (VRO 42.22.01) at frequencies 1,666, 2,695, 8,085, and 13,500 MHz. In addition we report separate observations of the same sources made at other epochs at 3,240 MHz and 13,500 MHz. The observations are used to examine the frequency dependence of the circular polarization of these three sources.
This is a preview of subscription content, access via your institution
Access options
Similar content being viewed by others
References
Gilbert, J. A., & Conway, R. G., Nature, 227, 585 (1970).
Conway, R. G., Gilbert, J. A., Raimond, E., & Weiler, K. W., Mon. Not. Roy. Astron. Soc., 152, IP (1971).
Roberts, J. A., Ribes, J. C., Murray, J. D., & Cooke, D. J., Nature Physical Science, 236, 3 (1972).
Seaquist, E. R., Astron. Astrophys. (in the press).
Legg, M. P. C., & Westfold, K. C., Astrophys. J., 154, 499 (1968).
Kellerman, K. I., Clark, B. G., Bare, C. C., Rydbeck, O., Ellder, J., Hansson, B., Kollberg, E., Hoglund, B., Cohen, M. H., & Jauncey, D. L., Astrophys. J. Lett., 153, L209 (1968).
Seaquist, E. R., Astrophys. Space Sci., 15, 284 (1972).
Berge, G. L., & Sieilstad, G. A., Astron. J. (in the press).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
SEAQUIST, E., GREGORY, P., BIRAUD, F. et al. Frequency Dependence of Circular Polarization in Three Compact Radio Sources. Nature Physical Science 242, 20–23 (1973). https://doi.org/10.1038/physci242020a0
Received:
Issue date:
DOI: https://doi.org/10.1038/physci242020a0
