First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
Publication information:
By The EHT Collaboration al. 2019. “First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole”. ApJL, 875, Pp. 6. https://iopscience.iop.org/article/10.3847/2041-8213/ab1141.