Associazione Arma Aeronautica Sezione Roma 2 Luigi Broglio

A nearby neutron-star merger explains the actinide abundance in the Early Solar System.

                         Artist's impression of two neutron stars merging(Credit: ESO/L. Calçada/M. Kornmesser)

Astrophysicists Imre Bartos at the University of Florida and Szabolcs Márka at Columbia University have identified a violent collision of two neutron stars 4.6 billion years ago as the likely source of some of the most coveted matter on Earth. This single cosmic event, close to our Solar System, gave birth to 0.3 percent of the Earth’s heaviest elements, including gold, platinum and uranium.

The researchers’ findings are published in the May 2 issue of the journal Nature. ……..

Credit: University of Florida, by Gigi Marino, May 1, 2019

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