Spacetime measurements with the photon ring Spacetime measurements with the photon ringDOI: info:10.1103/PhysRevD.111.104074v. 111APS104074Walia, Rahul Kumar, Kocherlakota, Prashant, Chang, Dominic O., and Salehi, Kiana. 2025. "Spacetime measurements with the photon ring." Physical Review D, 111 104074. https://doi.org/10.1103/PhysRevD.111.104074.More...ID: 176376Type: articleKeywords: sao