Abstract
Results of studies of bright radio sources in the constellation Cetus are presented. More than 50% of the sources have radio spectral indices steeper than 0.9. Optical identifications have been determined for 35 sources. A large fraction of the radio sources are identified with weak blue galaxies. Given their spectral indices, it is likely that these objects have redshifts z=0.4–1.0. More than 20% of the steep-spectrum sources do not have optical identifications and appear to be weak galaxies with z>2.
Similar content being viewed by others
References
E. Chavira, Rev. Mex. Astron. Astrofis. 7, 109 (1989).
G. Haro, Bol. Obs. Tonantzintla Tacubaya 2(14), 8 (1956).
A. Serrano, O. Cardona, E. Chavira, et al., Preprint No. 116 (St. Petersburg, 1996).
E. Chavira, O. V. Kiyaeva, N. M. Lipovka, et al., Astron. Astrophys. Trans. 10, 161 (1996).
H. Butcher and A. Oemler, Jr., Astrophys. J. 219, 18 (1978).
W. J. Couch and R. M. Sharoles, Mon. Not. R. Astron. Soc. 229, 423 (1987).
O. Cardona, E. Chavira, and N. M. Lipovka, Proc. of the Meeting “The Universe as Seen by ISO,” 1998 (http://www.iso.vilspa.esa.es/meetings/paris/proceedings/).
L. Fullmer and C. Lonsdale, Catalog of Galaxies and Quasars Observed in the IRAS Survey. Version 2 (1989).
M. Irwin, http://www.ast.cam.ac.uk/@apmcat/ (1998).
J. J. Condon, W. D. Cotton, E. W. Greisen, et al., The NRAO VLA Sky Survey, http://www.nrao.edu (1996).
J. N. Douglas, F. N. Bash, F. A. Bozyan, et al., Astron. J. 111, 1945 (1996).
O. V. Verkhodanov, S. A. Trushkin, H. Andernach, et al., Astronomical Data Analysis Software and Systems VI ASP Conf. Ser., 125, 322 (1997).
Yu. N. Pariiskii, N. S. Soboleva, A. V. Temirova, et al., Preprint No. 121 (St. Petersburg, 1997).
Yu. N. Pariiskii, W. M. Goss, A. I. Kopylov, et al., Bull. Spec. Astrophys. Obs. 40, 5 (1996).
M. J. Larg, B. Y. Mills, A. G. Little, et al., Mon. Not. R. Astron. Soc. 194, 693 (1981).
Author information
Authors and Affiliations
Additional information
__________
Translated from Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 77, No. 1, 2000, pp. 3–8.
Original Russian Text Copyright © 2000 by N. Lipovka, A. Lipovka, Verkhodanov, Chavira.
Rights and permissions
About this article
Cite this article
Lipovka, N.M., Lipovka, A.A., Verkhodanov, O.V. et al. Studies of bright steep-spectrum radio sources. Astron. Rep. 44, 1–5 (2000). https://doi.org/10.1134/1.163820
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.163820