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59 (Fifty-nine!) Binary Neutron Star Merger Simulations

11 Oct 2018, 21:28 UTC
59 (Fifty-nine!) Binary Neutron Star Merger Simulations
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Title: Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts and NucleosynthesisAuthors: David Radice, Albino Perego, Kenta Hotokezaka, Steven A. Fromm, Sebastiano Bernuzzi, Luke F. RobertsFirst Author’s Institutions: Institute for Advanced Study, Princeton, NJ, USA; Department of Astrophysical Sciences, Princeton University, Princeton, NJ, USAStatus: To be submitted to ApJ [open access on arXiv]Neutron star mergers are absolutely fascinating. These events are not just sources of gravitational waves but of electromagnetic radiation all across the spectrum – and of neutrinos as well. If you missed the amazing multimessenger observations last year that gave us a peek into what binary neutron star (BNS) systems are up to, please check out this bite about GW170817! The observations had major implications for many fundamental questions in astrophysics. The gravitational wave signal from the merger was detected along with the electromagnetic radiation produced. As a result, we were able to confirm that neutron star mergers are a site where heavy elements (those beyond iron) can be made via the r-process.While all of this has undoubtedly been extremely cool (and we’re holding our collective breath for more data), there’s a lot of work that remains to be done. We need accurate predictions of the quantity and composition ...

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