GW190521 as a Merger of Proca Stars: A Potential New Vector Boson of 8.7 × 10⁻¹³ eV
February 1, 2021·,,,,,,,,·
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Juan Calderón Bustillo
Nicolas Sanchis-Gual
Alejandro Torres-Forné
José A. Font
Avi Vajpeyi
Rory Smith
Carlos Herdeiro
Eugen Radu
Samson H. W. Leong