##### Hsin-Yu Chen

*Harvard University*

**"From LIGO-Virgo detections to the measurement of the expansion rate of the Universe"**

The discovery of gravitational-wave from the binary mergers and the joint detection of the electromagnetic counterparts have triggered extensive exploration of gravitational-wave science. In this talk, I will discuss the gravitational-wave detection statistics, the electromagnetic follow-up strategies, and focus on one of the many scientific outcomes enabled by the gravitational-wave/electromagnetic-wave multimessenger astronomy--to measure the expansion rate of the Universe. In particular, I will talk about the precision of Hubble constant measured by this method and the expected challenges.

**About the speaker**

Hsin-Yu Chen's research will focus on gravitational-wave multi-messenger astronomy. Hsin-Yu's research interests include electromagnetic counterpart follow-up of gravitational-wave sources, origin and astrophysics of stellar mass compact binary mergers, and cosmological measurement with gravitational-wave observations.

More details can be found here.