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Speaker: Juan Calderón Bustillo, Chinese University of Hong Kong & University of Santiago de Compostela
Title: Searching for signatures of boson-star mergers in gravitational-wave data
Abstract: To date, the gravitational-wave observatories LIGO and Virgo have detected almost one hundred compact mergers. While these have been canonically interpreted as mergers of neutron stars or black holes, there is a plethora of theoretical alternative compact objects that may produce similar signals. In particular, high-mass events for which barely any pre-merger information is available should be thoroughly compared to such alternative scenarios. In this talk I will show a possible interpretation of the high-mass event GW190521 as a boson-star merger, providing an estimate of the mass of the putative boson forming the stars. If time permits, I will also discuss the possibility of interpreting further GW events under this scenario.