Proposal code
v094
Proposal title
High Resolution Observations of the Gravitational Lens MG 0414+0534
The |
Investigators and their |
Affiliations |
| P.I. |
Christopher B. Moore |
M.I.T |
| |
Jacqueline N. Hewitt |
M.I.T. |
Proposal Abstract
We propose VSOP observations of MG 0414+0534, a
four-image gravitational lens, in order to probe high-resolution
structure of the images. Such structure can be used to constrain
models for the lensing potential, revealing information about the
gravitational potential of a distant galaxy. Furthermore, given a
model for the lensing potential and a measurement of the differential
time delay between two images, one can derive a unique measure of the
angular diameter distance to the lensing galaxy that is independent of
cosmological assumptions. Measurements of this kind provides a
measurement of the angular diameter distance--redshift relation at
redshifts large enough for the effects of Omega_0 and Lambda to
be important.
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Note that many proposals were reduced in extent by the Scientific Review Committee
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may therefore have changed.