Searching (the) FIRST radio arcs near ACO clusters

Details Searching (the) FIRST radio arcs near ACO clusters Searching (the) FIRST radio arcs near ACO clusters

1997-04-15

arxiv.org/abs/astro-ph/9704136v1

Astronomy and Astrophysics

Astrophysics

6 pages; 8 figures and 1 style file are included; to appear in Proc. "Observational Cosmology with the New Radio Surveys", eds

Scientific paper

Gravitational lensing (GL) of distant radio sources by galaxy clusters should produce radio arc(let)s. We extracted radio sources from the FIRST survey near Abell cluster cores and found their radio position angles to be uniformly distributed with respect to the cluster centres. This result holds even when we restrict the sample to the richest or most centrally condensed clusters, and to sources with high S/N and large axial ratio. Our failure to detect GL with statistical methods may be due to poor cluster centre positions. We did not find convincing candidates for arcs either. Our result agrees with theoretical estimates predicting that surveys much deeper than FIRST are required to detect the effect. This is in apparent conflict with the detection of such an effect claimed by Bagchi & Kapahi (1995).

Affiliated with

Also associated with

No associations

Rating

Searching (the) FIRST radio arcs near ACO clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Searching (the) FIRST radio arcs near ACO clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Searching (the) FIRST radio arcs near ACO clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-489707