Imaging the Environments of Steep Spectrum Radio Sources

Details Imaging the Environments of Steep Spectrum Radio Sources Imaging the Environments of Steep Spectrum Radio Sources

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.1511k&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #15.11; Bulletin of the American Astronomical Society, Vol. 24, p.1145

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We have started a program of optical identifications of steep spectrum radio sources which have a high probability of being associated with very distant galaxies. Blumenthal and Miley (1979) selected a sample of steep spectrum radio sources where subsequent optical identification has revealed them to be associated with galaxies at high redshift. Our sample is defined as follows : we have chosen sources in the declination range 13-20 degrees with radio spectral index greater than or equal to 1.15 and a size smaller than 15 arc seconds. The flux at 5000MHz is from the MIT-GB survey and the flux at 365 MHz comes from the Texas survey of Douglas et al. These radio galaxies all correspond to empty fields on the Palomar Sky Survey. We have observed four of these sources with the Canada France Hawaii telescope (V and R imaging). We have searched for clustering about these sources by running the FOCAS algorithm on these images. We will present the images and a clustering analysis in the poster.

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