
TY  - JOUR
A1  - Mortlock, Daniel J. 
A1  - Turner, Edwin L. 
T1  - Gravitational Lensing and Modified Newtonian Dynamics
JF  - Publications of the Astronomical Society of Australia
JO  - Publ. Astron. Soc.  Aust.
Y1  - 2001
VL  - 18
IS  - 2
SP  - 189
EP  - 191
KW  - gravitational lensing &#8212; gravitation &#8212; dark matter
UR  - https://doi.org/10.1071/AS01017 
N2  - Received 2001 January 21, accepted 2001 March 20 Gravitational lensing is most often used as a tool to investigate the distribution of (dark) matter in the universe, but, if the mass distribution is known a priori, it becomes, at least in principle, a powerful probe of gravity itself. Lensing observations are a more powerful tool than dynamical measurements because they allow measurements of the gravitational field far away from visible matter. For example, modified Newtonian dynamics (MOND) has no relativistic extension, and so makes no firm lensing predictions, but galaxy&#8211;galaxy lensing data can be used to empirically constrain the deflection law of a MONDian point-mass. The implied MONDian lensing formalism is consistent with general relativity, in so far as the deflection experienced by a photon is twice that experienced by a massive particle moving at the speed of light. With the deflection law in place and no invisible matter, MOND can be tested wherever lensing is observed. 
ER  -

