Most distant large sized FRII radio sources from SDSS, FIRST and NVSS catalogues

Elżbieta Kuligowska and Agnieszka Kuźmicz

Once again we address the problem of double-lobed radio sources detection. Due to the increasing number of the available radio and optical data and the resolution of the astronomical surveys, the methods of automated detection of the FFII-type radio sources need to be implemented. However, the full automation of this detection process is difficult because of the risk of neglecting the objects with slightly non-typical radio morphology. Here we present the results of the extensive attempt to detect all the potential candidates for the double-lobed FRIIs at z ≥ 2, corresponding to the optical objects selected from the SDSS survey DR 14. Based on the modified cross-correlation algorithm, we conducted the complete search of the northern hemisphere. We present the preliminary results and the list of the most promising candidates for the remotest large-sized FRIIs.

Proceedings of the Polish Astronomical Society, vol. 7, 82-87 (2018)

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