Weak Lensing by Nearby Clusters of Galaxies: A Complete Sample of Clusters

Details Weak Lensing by Nearby Clusters of Galaxies: A Complete Sample of Clusters Weak Lensing by Nearby Clusters of Galaxies: A Complete Sample of Clusters

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001noao.prop..113n&link_type=abstract

NOAO Proposal ID #2001A-0113

Computer Science

Scientific paper

We propose to carry out deep, multicolor, MOSAIC II imaging of 5 nearby (z< 0.1) clusters which will be used to measure the weak lensing shear toward these galaxy clusters. We will use the color information to separate cluster members from background galaxies. The lensing signal in low-redshift clusters is relatively insensitive to the background galaxy redshift distribution, eliminating one of the major uncertainties in the interpretation of previous, high redshift, cluster lensing measurements. These 5 clusters - in addition to the 13 already observed at CTIO - will finish a complete X-ray luminosity-limited sample of 18 nearby southern clusters scheduled for Sunyaev-Zel'dovich (SZ) observations by the Viper telescope. We will combine this lensing data with extensive X-ray and radio data, optical redshifts and high- quality SZ observations to perform detailed studies of their baryon fractions, morphologies and total masses. This wide variety of data is uniquely available for these low-z clusters. This entire completed survey will be a major tool in the determination of the local cluster mass function, a fundamental goal of cosmology. This proposal covers clusters for which we were granted observing time in 2000A, however they were not observed as the entire observing run was lost due to extreme weather.

Affiliated with

Also associated with

No associations

Rating

Weak Lensing by Nearby Clusters of Galaxies: A Complete Sample of 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 Weak Lensing by Nearby Clusters of Galaxies: A Complete Sample of Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weak Lensing by Nearby Clusters of Galaxies: A Complete Sample of Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1215623