Mattia Bulla, "Measuring the Hubble constant with kilonovae"

Europe/Stockholm
Description

On August 17, 2017, the simultaneous detection of gravitational waves and light from a binary neutron star merger led to independent measurements of distance and redshift, thus providing a direct estimate of the local expansion of the Universe, a.k.a. Hubble constant. In my talk, I will show that the radioactively-powered transient following the coalescence of compact binaries with at least one neutron star, a.k.a. kilonova, has characteristics that can improve on existing measurements or perform an independent measurement of the Hubble constant without gravitational-wave information. With the detection of more kilonovae in the future, this approach holds promise to arbitrate the current tension in the Hubble constant measurements between the Early and the Late Universe. 

The agenda of this meeting is empty