Exact WKB analysis reveals a bow-shaped Stokes geometry in the complex plane for JMN naked singularities, originating from the central logarithmic branch point and absent in black hole spacetimes.
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An RG-improved Schwarzschild-like black hole yields a multipole-independent SCC ratio at the 6% level, a bell-shaped Hawking temperature, and remains the most Schwarzschild-like among regular black hole models while shadow-degenerate with Hayward and Bonanno-Reuter at the 1% level.
citing papers explorer
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Quasinormal modes of the generalized JMN naked singularity using exact WKB analysis
Exact WKB analysis reveals a bow-shaped Stokes geometry in the complex plane for JMN naked singularities, originating from the central logarithmic branch point and absent in black hole spacetimes.
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Renormalization-group improved Schwarzschild black hole: shadow, ringdown, and strong cosmic censorship
An RG-improved Schwarzschild-like black hole yields a multipole-independent SCC ratio at the 6% level, a bell-shaped Hawking temperature, and remains the most Schwarzschild-like among regular black hole models while shadow-degenerate with Hayward and Bonanno-Reuter at the 1% level.