Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear

Details Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear

2005-08-03

arxiv.org/abs/astro-ph/0508118v2

Astropart.Phys.24:409-419,2005

Astronomy and Astrophysics

Astrophysics

17 pages, 6 figures; added references, corrected typos, matches published version

Scientific paper

10.1016/j.astropartphys.2005.09.

We explore the use of the tangential component of weak lensing shear to characterize the ellipticity of clusters of galaxies. We introduce an ellipticity estimator, and quantify its properties for isolated clusters from LCDM N-body simulations. We compare the N-body results to results from smooth analytic models. The expected distribution of the estimator for mock observations is presented, and we show how this distribution is impacted by contaminants such as noise, line of sight projections, and misalignment of the central galaxy used to determine the orientation of the triaxial halo. We examine the radial profile of the estimator and discuss tradeoffs in the observational strategy to determine cluster shape.

Affiliated with

Also associated with

No associations

Rating

Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear 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 Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-613797