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Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7495f&link_type=abstract
HST Proposal ID #7495
Other
Hst Proposal Id #7495 Cosmology
Scientific paper
We propose to carry out a complete survey of all known galaxy- mass gravitational lens systems {with image separations DeltaTheta <= 10''}, by obtaining deep, high-resolution images in the optical and near IR. We request H band observations with NICMOS/NIC2, complemented by WFPC2/PC1 images in the V and I bands where they do not yet exist. Our goals for this survey are to: {1} identify simple lens systems for Hubble's constant estimates; {2} obtain photometric redshifts for the lens galaxies; {3} measure the M/L ratio of lens galaxies; {4} compare the dark matter to the stellar light distribution; {5} probe the interstellar medium in the lens galaxies; and to {6} find as yet undetected lens galxies. With this information, we will address a number of problems central to modern cosmology and galaxy evolution. PLEASE NOTE: This project is a collaboration between two groups, one at the Smithsonian Astrophysical Observatory {SAO}, and the other at the University of Arizona {UA}. SAO would like to establish UA as an equal partner to the project, with PI E.Falco and Co-PI C.Impey. Both institutions should have access to the data, and we would like to have notifications sent to: J.Lehar {jlehar@cfa.harvard.edu}, C.Impey {impey@as.arizona.edu}, E.Falco {efalco@cfa.harvard.edu}.
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