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RC J1148+0455 identification: gravitational lens or group of galaxies ?

The structure of the radio source RC B1146+052 of the ``Cold'' catalogue is investigated by data of the MIT-GB-VLA survey at 4850 MHz. This source belongs to the steep spectrum radio sources subsample of the RC catalogue. Its spectral index is $α$ = -1.04. The optical image of this source obtained with 6m telescope is analysed. The radio source center is situated in a group of 8 galaxies of about 24$^m$ in the R-filter. The possible explanations of the complex structure of radio components are considered.

preprint1999arXivOpen access
O. V. VerkhodanovA. I. KopylovYu. N. ParijskijN. S. SobolevaO. P. ZhelenkovaA. V. TemirovaJ. WinnA. FletcherB. Burke
astro-ph
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Open access9 authors1 topic
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O. V. VerkhodanovA. I. KopylovYu. N. ParijskijN. S. SobolevaO. P. ZhelenkovaA. V. TemirovaJ. WinnA. FletcherB. Burke

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