High-Order Photon Rings around Kerr Naked Singularities

Hina Suzuki, Yosuke Mizuno, Akhil Uniyal +3

We present a detailed study of higher-order photon rings of an accreting Kerr naked singularity (KNS) with dimensionless spin parameter $a=1.01$; i.e., a horizonless, overly spinni…