Diagnostic properties of moving gravitational lenses

Details Diagnostic properties of moving gravitational lenses Diagnostic properties of moving gravitational lenses

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.341...38c&link_type=abstract

Nature (ISSN 0028-0836), vol. 341, Sept. 7, 1989, p. 38-41. Research supported by NSF.

Statistics

Computation

3

Computational Astrophysics, Gravitational Lenses, Image Velocity Sensors, Relativistic Velocity, Very Long Base Interferometry, Very Long Baseline Array (Vlba)

Scientific paper

Several properties of gravitational moving lenses that do not appear to have been noted before are pointed out. Moving lenses always produce two-dimensional velocities, they impose specific relations between observed velocities and positions, they magnify relative source velocities, they convert linear into rotary motion, and they convert radial into transverse velocity. The mass and distance of a moving lens can be separately determined. Some useful astronomical diagnostic properties of moving lenses are pointed out for which the Very Long Baseline Array under construction will be particularly useful.

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