Galaxy Populations at Very Large Cluster Radii III: The Outskirts of CL J1226.9+3332 at z=0.89

Details Galaxy Populations at Very Large Cluster Radii III: The Outskirts of CL J1226.9+3332 at z=0.89 Galaxy Populations at Very Large Cluster Radii III: The Outskirts of CL J1226.9+3332 at z=0.89

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10696f&link_type=abstract

HST Proposal ID #10696

Physics

Hst Proposal Id #10696

Scientific paper

We propose to use the Advanced Camera for Surveys to image 10 selected fields in the outskirts of X-ray luminous cluster Cl J1226.9+3332 at z=0.89, for a detailed study of those galaxies entering the cluster for the first time. These data will be combined with the existing ACS imaging of the inner portions of the cluster, and be analyzed in parallel with our wide-field two-color ACS mosaics of MS 1054-03 {z=0.83} and RX J0152-13 {z=0.83}. Together, these studies of the galaxy populations well beyond the virial radii of the clusters will allow us to directly {1} study the transformation of infalling field spirals into cluster early-types using the morphology-density relation to large radii and very low local densities; {2} measure the frequency of galaxy-galaxy mergers and interactions in the infall region; and {3} determine the star-formation histories of those field galaxies most recently accreted by the cluster, using accurate colors, morphologies, and M/L ratios. The wide-field HST/ACS data will be supplemented with both wide-field multi-object spectroscopy and photometric redshifts from ground-based broadband optical and near-IR imaging. By studying the clusters out to twice their virial radii, the three clusters in our sample will directly test predictions for the formation of early-type galaxies and for the transformation of field galaxies into present-day cluster galaxies.

Affiliated with

Also associated with

No associations

Rating

Galaxy Populations at Very Large Cluster Radii III: The Outskirts of CL J1226.9+3332 at z=0.89 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 Galaxy Populations at Very Large Cluster Radii III: The Outskirts of CL J1226.9+3332 at z=0.89, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galaxy Populations at Very Large Cluster Radii III: The Outskirts of CL J1226.9+3332 at z=0.89 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1250510