LIGO Seminar

https://caltech.zoom.us/j/87546916051?pwd=aTByZU5WamhUKzlkRVY2bW05bytDdz09

Speaker: Andrew Toivonen

Title: Low-latency gravitational-wave data products intended for multi-messenger searches in the fourth observing run of the International Gravitational-Wave Network 

Abstract: With the fourth observing run of the International Gravitational-Wave Network (O4) underway, the search for gravitational-wave counterparts, including gamma-ray bursts and kilonovae, continues. Observations of gravitational waves and their counterparts, like with GW170817 and AT 2017gfo, are crucial for our understanding of the neutron star equation of state and of r-process nucleosynthesis expected to take place in the ejecta of compact binary mergers with at least one neutron star. Here, we present a summary of open public alerts in the first half of O4, the current data products used to classify compact binary mergers, and those under current development. These include, amongst others, exciting proposed data products designed to maximize multi-messenger follow-up opportunities, such as estimates of the likelihood that a candidate will produce a kilonova, estimates of the mass ejecta and light curves produced by such a kilonova, as well as estimates for the binary viewing angle.