Mathematics – Probability
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esoc...43..481r&link_type=abstract
ESO Conference & Workshop Proceedings, vol. 43, p. 481-486 eds. A. Heck & F. Murtagh, ESO, Garching, Germany
Mathematics
Probability
1
Radio Sources, Clusters Of Galaxies, Spectra Of Radio Sources
Scientific paper
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_ km/s/Mpc). Removal of sources with extreme spectral indices yields a high probability for the presence of a correlation (within 1 r_A_) between projected distance from the cluster centre and source spectral index. This precludes a previous conjecture that the trend may be due to a few very steep spectrum sources only. Restriction to stronger sources improves the correlation and increases its slope, suggesting these sources to be more likely associated with cluster members.
Andernach Heinz
Reuter H.-P.
No associations
LandOfFree
Radio Source Spectra Towards Clusters of Galaxies as Drawn from Large Surveys does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radio Source Spectra Towards Clusters of Galaxies as Drawn from Large Surveys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio Source Spectra Towards Clusters of Galaxies as Drawn from Large Surveys will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1767521