Radio Source Spectra Towards Clusters of Galaxies as Drawn from Large Surveys
We have used three large-scale radio surveys to study the spectral behaviour of radio sources towards Abell clusters of galaxies. Without attempting to separate genuine cluster sources from background sources, we find a steeper median spectral index within 0.5 Abell radii (r_A_) than between 0.5 and 1 r_A_ (1 r_A_=3 h_50^-1 Mpc, and H_0 = 50 h_50_
Reuter, H.-P. et al.
Fecha de publicación:
9
1992