Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses

Details Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses

2004-11-16

arxiv.org/abs/astro-ph/0411464v2

Mon.Not.Roy.Astron.Soc. 361 (2005) L38-L41

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, accepted for publication in MNRAS Letters

Scientific paper

10.1111/j.1745-3933.2005.00061.x

The fraction of substructures required to account for anomalous flux ratios in gravitational lens systems appears to be higher than that predicted in the standard cold dark matter cosmology. We present a possible alternative route to anomalous flux ratios from lens galaxy environments. We consider the compound lens system such that a lens galaxy lie in a group or cluster, and estimate the contribution of substructures in the group/cluster to the fraction using an analytic model of substructures. We find that the contribution becomes dominant when the impact parameter of the lens is less than ~30% of the virial radius of the group/cluster. This indicates that the environmental effect can partly explain the high incidence of anomalous flux ratios.

Affiliated with

Also associated with

No associations

Rating

Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses 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 Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens Galaxy Environments and Anomalous Flux Ratios in Gravitational Lenses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-212050