A Lorentz–Euclidean black hole is a geodesically complete spacetime with a signature change at the event horizon, where causal geodesics never reach the central singularity at r=0. We studied the shadows of this geometry to identify differences from the Schwarzschild solution. The analysis shows an excess intensity in the inner shadow region, pointing to a potential observational signature of novel light-ray behavior near the horizon. This feature could serve as a tool to test modifications of physics at the horizon scale. It is also shown that although the horizon surface continuously accumulates photons and energy, its backreaction differs from the behavior of stable photon rings typical of exotic compact objects.
An ordinary black hole is an abyss into which everything falls irretrievably. But a new model paints a different picture: at its edge, time freezes, and the hole becomes a frozen whirlpool. Light and matter don't fall in but stick fast to the surface—causing a bright spot to appear within the shadow.
Astronomers could spot such an object by an excess of brightness inside the shadow, because light bends around it differently. The most surprising part is that there is no bottom inside. An ordinary black hole crushes everything into an infinitely small point, but here the very idea of falling loses meaning: the center is as if sealed off. This contradicts the classical picture by Schwarzschild and indicates that spacetime near the horizon is more complex. Detecting such an anomaly with the telescope networks that already photograph black hole shadows would be a breakthrough toward understanding quantum gravity.
🎯 In such a black hole, there is no point of infinite compression—the effect is simply turned off.