Weak Lensing Masses of Nearby Clusters of Galaxies: Towards a Complete Sample of Clusters

Details Weak Lensing Masses of Nearby Clusters of Galaxies: Towards a Complete Sample of Clusters Weak Lensing Masses of Nearby Clusters of Galaxies: Towards a Complete Sample of Clusters

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..248n&link_type=abstract

NOAO Proposal ID #1999A-0248

Mathematics

Logic

Scientific paper

We propose to carry out deep, multicolor BTC observations of 4 z~eq0.05 clusters which will be used to measure the weak lensing shear towards these nearby clusters of galaxies. The color information will allow us to define photometric redshifts for all galaxies thus separating cluster galaxies from the background population. When combined with the relatively insensitivity of the lensing signal towards low redshift clusters to the background galaxy redshift distribution, we will eliminate a major source of uncertainty in present, higher redshift, lensing studies. We will combined these lensing data with the extensive X-ray data, optical redshifts, and high quality Sunyaev-Zel'dovich (SZ) observations available on these clusters to obtain a robust determination of the total masses of these systems. These 4 clusters - in addition to 2 clusters observed in semester 98B - are part of a complete, X-ray luminosity limited sample of 24 nearby southern clusters scheduled for SZ observations by the Viper telescope at the South Pole. These 6 clusters - 25% of the sample - will be the first step towards a robust determination of the local cluster mass function: a fundamental goal of cosmology which will be used to constrain the underlying cosmological model and Ω_0.

Affiliated with

Also associated with

No associations

Rating

Weak Lensing Masses of Nearby Clusters of Galaxies: Towards 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 Masses of Nearby Clusters of Galaxies: Towards 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 Masses of Nearby Clusters of Galaxies: Towards a Complete Sample of Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-948212