Probing the Mass Distribution to High Redshift in the UDF

Details Probing the Mass Distribution to High Redshift in the UDF Probing the Mass Distribution to High Redshift in the UDF

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9956w&link_type=abstract

HST Proposal ID #9956

Statistics

Hst Proposal Id #9956 Cosmology

Scientific paper

We propose to study two aspects of galaxy mass assembly using galaxy-galaxy lensing in the Ultra Deep Field {UDF}: evolution of galaxy mass and mass-to-light ratio {M/L} with cosmic time, and mass profiles in the inner 1-10 kpc. The UDF data will enable detection of changes in the average galaxy mass of as little as 10% from 11 Gyr ago to now. The mean mass profile will also be tightly constrained over the same range of lookback times. Lensing probes all types of galaxies equally well, and the large-number statistics will easily support subdivision into various galaxy types. Our data products will be a calibrated set of galaxy mass evolution results to complement the more traditional galaxy luminosity/number/type evolution results which will undoubtedly spring from the UDF, plus an independent photometric-redshift catalog of the UDF and mass maps of the 30' x 30' area surrounding the UDF.

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