Title: Probing gravitation with high-precision pulsar timing

Speaker: Weiwei Zhu(UBC, Canada)

Time: Wednesday, 10:30 am,17th July

Location: Middle Conference Room, 3rd floor

　　 Pulsars are excellent test grounds for fundamental physics. As precise cosmic clocks, they have been used in many experiments, especially in testing gravitational theories. We report 20-year timing of one of the most stable pulsar---J1713+0747, achieved using the world’s largest telescopes. These results set new records on pulsar timing precision, constrain alternative gravitational theories and test the constancy of gravitational constant.