Radio Emission towards Lensed Arcs in Galaxy Clusters

Details Radio Emission towards Lensed Arcs in Galaxy Clusters Radio Emission towards Lensed Arcs in Galaxy Clusters

1998-02-10

arxiv.org/abs/astro-ph/9802108v1

Astronomy and Astrophysics

Astrophysics

11 pages, 2 figures

Scientific paper

We present initial results from a search to detect radio emission at 1.4 GHz from gravitationally lensed arcs towards galaxy clusters. Using the FIRST survey observations of galaxy cluster fields, we have clearly detected 1.4 GHz emission at the location of bright arc towards the galaxy cluster Abell 370. The possibility that this emission is associated with a projected galaxy superimposed on the arc cannot be completely ruled out. However, the detection of CO(2-1) line towards this arc by Casoli et al. (1996) and the increase in 1.4 GHz diffuse emission near the arc region strongly suggest a lensed origin for detected radio emission.

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