Other names for black holes
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Other Names for Black Holes
Introduction to Black Holes
Black holes are regions in spacetime where gravity is so intense that nothing, not even light, can escape their pull. This phenomenon is characterized by a boundary known as the event horizon, beyond which escape is impossible Herdeiro2018Sandhu2019. The concept of black holes has evolved significantly since the first mathematical description by Karl Schwarzschild in 1916 .
Schwarzschild and Kerr Black Holes
The most commonly known types of black holes are the Schwarzschild black hole and the Kerr black hole. A Schwarzschild black hole is non-rotating and has no charge, while a Kerr black hole is rotating . These names are derived from the solutions to Einstein's field equations in general relativity, provided by Karl Schwarzschild and Roy Kerr, respectively .
Topological Black Holes
Another type of black hole is the topological black hole. In four-dimensional spacetime, when the two-sphere of black hole event horizons is replaced by a two-dimensional hypersurface with zero or negative constant curvature, the black hole is referred to as a topological black hole . These black holes are solutions in the Einstein-Maxwell-dilaton theory with a Liouville-type dilaton potential .
Historical Context and Alternative Names
The term "black hole" itself has an interesting history. It was popularized by physicist John Wheeler in 1968, although the concept had been discussed earlier. The name is also linked to the "Black Hole of Calcutta," a historical prison in India, which influenced physicist Robert Dicke to draw parallels between the prison and gravitationally collapsed stars Rathore2018Sandhu2019.
Conclusion
Black holes, whether referred to as Schwarzschild, Kerr, or topological black holes, represent some of the most fascinating and extreme objects in the universe. Their names and classifications are deeply rooted in both historical context and mathematical theory, reflecting the rich tapestry of scientific discovery and human curiosity.
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Most relevant research papers on this topic
The black hole fifty years after: Genesis of the name
The term black hole was coined by a partnership between John Wheeler and Robert Dicke, influenced by the Black Hole of Calcutta, a prison in India, and the collapsed stars of the universe.
Survey on black hole
Black holes are regions of space from which nothing, including light, can escape, due to the curving of space-time caused by dense mass.
Black-bounce to traversable wormhole
This paper presents a novel regular black hole spacetime, which interpolates between the standard Schwarzschild black hole and the Morris-Thorne traversable wormhole, with a unique origin r=0 that can be either spacelike, null, or timelike.
A Brief Review on Primordial Black Holes as Dark Matter
Primordial black holes are a potential candidate for dark matter, with their formation, abundance, and signatures potentially impacting the evolution of the Universe and the formation of structures.
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