The Sloan Nearby Cluster Weak Lensing Survey

TL;DR

This paper presents initial results from a weak lensing survey of nearby galaxy clusters using SDSS data, aiming to analyze approximately 200 clusters for detailed mass measurements.

Contribution

It introduces a large-scale weak lensing survey of low-redshift galaxy clusters, utilizing SDSS data, and reports initial measurements for seven clusters as part of this ongoing project.

Findings

Initial weak lensing measurements for seven clusters.

Survey will eventually include about 200 clusters.

First large-scale weak lensing study of nearby clusters.

Abstract

We describe and present initial results of a weak lensing survey of nearby ($\rm{z}\lesssim0.1$) galaxy clusters in the Sloan Digital Sky Survey (SDSS). In this first study, galaxy clusters are selected from the SDSS spectroscopic galaxy cluster catalogs of \citet{miller05} and \citet{berlind06}. We report a total of seven individual low redshift cluster weak lensing measurements which include: A2048, A1767, A2244, A1066, A2199, and two clusters specifically identified with the C4 algorithm. Our program of weak lensing of nearby galaxy clusters in the SDSS will eventually reach $\sim 200$ clusters, making it the largest weak lensing survey of individual galaxy clusters to date.