13 citations · 24 across the 6 of their papers we have counts for
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gr-qc2024★ 3 cited
Neutral particle collisions near Gibbons-Maeda-Garfinkle-Horowitz-Strominger black holes after shadow observations
Naoki Tsukamoto, Ryotaro Kase
A Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) black hole with a magnetic charge (or an electric charge) has noteworthy features that its scalar curvature near the event hor…
gr-qc2024★ 13 cited
Constraints on the black-hole charges of M87* and Sagittarius A* by changing rates of photon spheres can be relaxed
Naoki Tsukamoto, Ryotaro Kase
The Event Horizon Telescope (EHT) Collaboration observed ring images called the shadows of M87* and Sagittarius~A* (Sgr~A*), which are supermassive objects in M87 and our galaxy, r…
gr-qc2024★ 6 cited
Circular light orbits of a general, static, and spherical symmetrical wormhole with symmetry
Naoki Tsukamoto
Recently, the ring images or the shadow images of the centers of the galaxy M87 and the Milky way have been reported by Event Horizon Telescope Collaboration. It is believed that t…