Black Hole Evaporation Predictions
Theoretical advances remove singularities for black hole evaporation predictions, showing slower late-stage Hawking radiation detectable by gamma-ray telescopes. A new paper unifies galactic rotation curves and Hubble tension via a "quantum galactic medium" of fractal hexagonal dark energy hydrogen in a Fermi-Dirac condensate.
- Stephen Hawking first proposed the theory of Hawking radiation in 1974, suggesting that black holes are not entirely "black" but can emit particles due to quantum effects near their event horizon. For a black hole with the mass of our sun, this evaporation process is incredibly slow, estimated to take around 10^67 years, which is vastly longer than the current age of the universe. - A singularity is a theoretical point of infinite density and zero volume at the center of a black hole where the laws of physics as we know them are predicted to break down. The "cosmic censorship" hypothesis posits that these singularities are always concealed behind an event horizon, making them impossible to observe directly from the outside. - The final moments of a primordial black hole's evaporation are predicted to result in a powerful burst of high-energy gamma rays. Observatories such as the Fermi Gamma-ray Space Telescope are actively searching for these gamma-ray signals, which would provide strong observational evidence for the existence of Hawking radiation. - Galactic rotation curves are plots of the orbital speeds of stars and gas at various distances from a galaxy's center. Observations consistently show that objects in the outer regions of galaxies rotate much faster than can be accounted for by the visible matter alone, a major piece of evidence supporting the existence of dark matter. - The Hubble tension refers to a significant disagreement between two primary methods of measuring the expansion rate of the universe, known as the Hubble constant. Measurements of the early universe via the cosmic microwave background suggest a slower rate of expansion than measurements from the local universe using objects like Cepheid variable stars. - A Fermi-Dirac condensate is a state of matter in which fermionic particles, which are subject to the Pauli exclusion principle, pair up to form bosons and then condense into a superfluid state at extremely low temperatures. This phenomenon is the underlying principle of superconductivity. - The interstellar medium (ISM) is the very diffuse matter and radiation that exists in the space between stars within a galaxy, primarily composed of hydrogen and helium. In contrast, the intergalactic medium (IGM) is the even more tenuous matter found between galaxies, which is thought to contain a significant fraction of the universe's normal matter in a hot, ionized state known as the warm-hot intergalactic medium (WHIM).
