Speaker
Ernesto Barrientos Rodríguez
(Universidad Nacional Autónoma de México)
Description
In this work we construct a relativistic extension of the MODified
Newtonian Dynamics (MOND) in the metric formalism $f(\chi)$ using the
Palatini approach. We show that a simple power law: $f(\chi)=\chi^b$,
with $b = 3/2$ corresponds to the non-relativistic form of MOND.
Amongst the many approaches proposed to extend MOND to a relativistic
regime, the Palatini metric formalism discussed here, yields second order
field equations, which is a desirable (but not a necessary) requirement
in a gravitational theory. We briefly discuss lensing applications of
this proposal.
Author
Ernesto Barrientos Rodríguez
(Universidad Nacional Autónoma de México)
