The first black hole image: A gravitomagnetic monopole as an alternative explanation – Phys.org

Shadow shapes resulting from the four different settings on the spin (a) and the NUT parameter (n), i.e., (a,n)=(0,0) (Schwarzschild metric), (1, 0) (extremely rotating Kerr metric), (0.9, 0.7) (KTN BH), and (5, 0.9) (KTN NS), respectively, for i=17. This…

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