ITC Seminar - Kenta Hotokezaka (Princeton)
Date and Time
December 10, 2019
12:00PM - 01:00PM EST
Location
Phillips
Late-time kilonovae and superluminal jet in neutron star merger Abstract: The discovery of electromagnetic counterparts of the first GW neutron star merger event, GW170817, has opened a new era of gravitational-wave astronomy. The observed light curve and spectrum of the GW170817 kilonova suggest that this merger produced a substantial amount of r-process elements. One of the next challenges will be to identify atomic signatures of heavy elements and to understand the origin of elements. In this talk, I will discuss a modeling of late-time kilonovae, which contain the information of atoms. I'll also talk about the superluminal jet in GW170817 resolved by VLBI. This measurement allows us to put a strong constraint on the viewing angle and therefore improves the Hubble constant measurement.