Radio-optical identification of very-steep spectrum radio sources from the UTR-2 catalogue
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We used radio source catalogues accessible from the CATS database (http://cats.sao.ru) to establish radio continuum spectra for decametric radio sources in the UTR-2 catalogue (Braude et al., 1978--1994). From these, we select a sample of 23 sources with ultra steep radio spectra (α<=-1.2, S ~ ν^α) and present accurate positions and sizes from FIRST and NVSS. The search for optical counterparts from the APM (object) and DSS (image) databases, as well as infrared and X-ray identifications of these UTR sources are in progress.
7 pages, 5 figures. This was the poster as presented on IAU Symp 199. The short (final) version was submitted the Symp. Proceedings
7 pages, 5 figures. This was the poster as presented on IAU Symp 199. The short (final) version was submitted the Symp. Proceedings