Parkes observations for project P361 semester 2015APRS

The extreme neutron star-white dwarf relativistic binary J1141-6545 is an important target for testing General Relativity and its competing alternatives. Our past decade of timing observations of this system have enabled measurements of its orbital decay that are in agreement with general relativistic predictions. Our limits for the strongly non-linear coupling parameter of tensor-scalar theories of gravity are expected to improve dramatically in the near future, as the pulsar's proper motion measurement is made from our ongoing LBA astrometry project and systematics in our timing data are accounted for. This holds great prospects for conducting further stringent tests of the theories of gravity. We therefore propose to continue timing observations of this system.