...galaxies.

The work is similar to current efforts to map the dark matter distribution around clusters using weak lensing (e.g., Kaiser et al. 1995).

...galaxies.

Because the orbits diverge from pure Keplerian orbits when the galaxies interpenetrate, the simple scaling of 147#147 does not apply.

John Dubinski
Mon Aug 28 13:57:18 PDT 1995