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

O. V. Verkhodanov·A. I. Kopylov·Yu. N. Parijskij·N. S. Soboleva·O. P. Zhelenkova·A. V. Temirova·J. Winn·A. Fletcher·B. Burke
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Abstract

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.

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O. V. Verkhodanov, A. I. Kopylov, Yu. N. Parijskij, N. S. Soboleva, O. P. Zhelenkova, A. V. Temirova, J. Winn, A. Fletcher, B. Burke. 1999-12-23. RC J1148+0455 identification: gravitational lens or group of galaxies ?. https://doi.org/10.1080/10556790008238599

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