Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole
Publication information:
By D. Psaltis al. 2020. “Gravitational Test Beyond the First Post-Newtonian Order With the Shadow of the M87 Black Hole”. Physical Review Letters, 125, 14, Pp. 141104. https://ui.adsabs.harvard.edu/abs/2020PhRvL.125n1104P/abstract.