Friday April 3, 2015: Morningside Center AMSS. To find the Morningside Center, check  this Chinese location http://kitpc.itp.ac.cn/VISITINFO/pic/transinfo2.jpg  (it is close to ITP/KITPC, same campus, near 4th ring road). Chinese Address:
 保福寺桥西南角，中关村东路55号基础科学园区内

3:00 p.m.: Coffee

4:00 p.m.: Talk starts

Kejia Lee (KIAA): Hunting gravitational waves using the natural beacons, the pulsars

Abstract: We are finally at the dawn of direct gravitational wave detection, after fifty-year struggling march of experimental gravity research, where
both the ground based laser interferometers and pulsar timing arrays are  both expected to take a leap to the final detection, and the space laser
interferometer is also of great expectations.

The pulsars are compact stars with radius of 10 km and mass of 1.4 solar mass. Their rotation stability can be comparable to the current international
atomic clock ensemble time scale. In this way, by monitoring a group of carefully selected pulsars, and using the radio pulses from the pulsars
as frequency standard can deliver direct evidences for the gravitational waves.

In this talk, I will introduce the basic pulsar astronomy and pulsar timing techniques. The gravitational wave detection using pulsar timing array will
be also covered. The progress of currently on-going European pulsar timing array data analysis will be presented as an example of current efforts in
the community. At the end of the talk, I will present the future perspectives and discuss the major challenges in current projects.