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A kilonova from an ultra-quick merger of a neutron star binary
Abstract GRB 060505 was the first well-known nearby (at redshift 0.089) “hybrid” gamma-ray burst that has a duration longer than 2 seconds but without the association of a supernova down to very stringent limits1. The prompt γ−ray flash lasting ∼ 4 sec could consist of an intrinsic short burst and …