For a black hole to physically exist as a solution to Einstein's equation, it must form an event horizon in finite time relative to outside observers. 1972 James Bardeen, Brandon Carter, and Stephen Hawking propose four laws of black hole mechanics in analogy with the laws of thermodynamics. Preceding unsigned comment added by 212.201.71.52 (talk) 21:53, 16 February 2008 (UTC). "Observe matter falling into a black hole". The words at the top of the list are the ones most associated with nonsingular black hole . Preceding unsigned comment added by 212.201.74.10 (talk) 17:30, 4 November 2007 (UTC), Please see the new comments about alternative black hole models in the main talk. [8] The model was proposed by Eloy Ayn Beato and Alberto Garca in 1998 based on the minimal coupling between a nonlinear electrodynamics model and general relativity, considering a static and spherically symmetric spacetime. SamuelRiv 23:41, 4 November 2007 (UTC) [ reply] Please see the new comments about alternative black hole models in the main talk. Hi SamuelRiv, Communication . Andrew Hamilton, one of the leading experts in GRT goes into detail about this misbeliev on his page [2]. We describe a possible generalization of a non-singular black-hole metric to the case when this equality is violated. gmrs ghost antenna guard dawg keyless ignition for indian scout a body is projected from the ground with a speed u Unlike CGHS, the modified models are non-singular and Of the four fundamental interactions in nature, gravity is geodesically complete. Black stars (Tanmay Vachaspati and Lawrence M. Krauss): Later the same authors reinterpreted the first non-singular black hole geometry, the Bardeen toy Model,[9] as a nonlinear-electrodynamics-based regular black hole. [11], Avoiding paradoxes in the standard black hole model. Zhang, Shuang Nan; Tang, Sumin (2007-07-06). Model for nonsingular black hole collapse and evaporation. As we shall see, the maximal curva- There is an explanation why the Krauss model is wrong.The simply reason why these models are not ruled out by other is that one does't take them serious except some persons who have no idea of GR, too. Hayward, Sean A. [citation needed]Nonsingular black hole models have been proposed since theoretical problems with black holes were first realized. ably similar to the Schwarzschild solution of general relativ- have black hole solutions ~solutions with event horizons!. ; ESA An artist concept of a black hole. We employ a probability distribution inspired mass function m ( r) to replace the Kerr black hole mass M to represent a nonsingular rotating black hole that is identified asymptotically ( r \gg k, k>0 constant) exactly as the Kerr-Newman black hole, and as the Kerr black hole when k=0. [citation needed] Today some of the most viable candidates for the result of the collapse of a star with mass well above the Chandrasekhar limit include the gravastar and the dark energy star. Avoiding paradoxes in the standard black hole model. They come up with crazy ideas which has nothing to do with real science. Download Unionpedia on your Android device! While black holes were a well-established part of mainstream physics for most of the end of the 20th century, alternative models received new attention when models proposed by George Chapline and later by Lawrence Krauss, Dejan Stojkovic, and Tanmay Vachaspati of Case Western Reserve University showed in several separate models that black hole horizons could not form.[3][4]. There is an explanation why the Krauss model is wrong.The simply reason why these models are not ruled out by other is that one does't take them serious except some persons who have no idea of GR, too. https://en.wikipedia.org/w/index.php?title=Talk:Nonsingular_black_hole_models&oldid=410159268, This page was last edited on 26 January 2011, at 12:51. Avoiding paradoxes in the standard black hole model, "Witnessing matter falling into a black hole by a distant observer", Black holes don't exist, Case physicists report, Magnetospheric eternally collapsing object, https://infogalactic.com/w/index.php?title=Nonsingular_black_hole_models&oldid=704978721, Last edited on 14 February 2016, at 19:11, Creative Commons Attribution-ShareAlike License. A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. [1][2] This solution does not solve the information paradox, however. Abstract. The root cause of all black holesbe they tiny primordial black holes, solar mass black holes, or supermassive galactic black holesis gravity. Signal/ Indicator Suites. I would like to include more summary articles and less scientific papers. Nevertheless, the existence of a stable model of a nonsingular black hole is still an open question. Ayn-Beato, Eloy; Garca, Alberto (8 June 1998). The topic is also known as: nonsingular black hole model. This Paper. . SamuelRiv 19:17, 3 November 2007 (UTC). These results also attracted media attention [5] , since the issue of black holes has long been popular with the public. In particular, in 2007, Shuan Nan Zhang from Tsinghua University proposed a model in which the event horizon of a potential black hole is formed (or expanded) only after the falling object reaches the existing horizon, or after the horizon exceeds the critical density . Property Value; dbo:abstract: "Electrically charged black holes in linear and nonlinear electrodynamics: Geodesic analysis and scalar absorption". Today some of the most viable candidates for the end result of the collapse of a star with mass well above the Chandrasekhar limit include the gravastar and the dark energy star. We investigate how the resolution of the singularity problem for the Schwarzschild black hole could be related to the presence of quantum gravity effects at horizon scales. This requires an accurate theory of black hole formation, of which several have been proposed. Explore contextually related video stories in a new eye-catching way. Bardeen, JM (1968). We describe a possible generalization of a nonsingular black-hole metric to the case when this equality is violated. In other words, a falling object causes an expansion of the event horizon of the black hole, which occurs only after the object fell into the black hole, which allows observing the event horizon at a finite time [1] [2] . In 2007, Shuan Nan Zhang of Tsinghua University proposed a model in which the event horizon of a potential black hole only forms (or expands) after an object falls into the existing horizon, or after the horizon has exceeded the critical density. pgw bill pay as guest mortal kombat harem wattpad http ultra box club c Nevertheless, the existence of a stable model of a nonsingular black hole is still an open question. Today some of the most viable candidates for the result of the collapse of a star with mass well above the Chandrasekhar limit include the gravastar and the dark energy star. Abstract In this paper we present a nonsingular black hole model as a possible end-product of gravitational collapse. The Hayward metric is the simplest description of a black hole that is non-singular. Download Download PDF. The U.S. Department of Energy's Office of Scientific and Technical Information A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. RSI Strategy Suite for MultiCharts - The RSI Strategy Suite for MultiCharts offers a primary RSI -based PowerLanguage formula , along with accessory formulas , that together implement a collection of analysis, visualization, presentation, and optimization techniques to create a complete solution for 4-line indicator. If Vachaspati and Co. were right, the supermassive black hole at the center of the milky way would evaporate due to "pree-Hawking radiation" within hours- but you know that this is not the case. At present, several models have been developed to describe the collapse of stars with a mass significantly exceeding the Chandrasekhar limit , including a gravastar and a dark energy star . Alternative models of black holes attracted attention when , and later Lawrence Krauss, Dejan Stojkovic and Tenmey Vachaspati from the Case Western University reserve showed that in some models the black . "Witnessing matter falling into a black hole by a distant observer", http://www.cfa.ustc.edu.cn/meeting/aco/papers/5-7morning/Witnessing%20matter%20falling%20into%20a%20black%20hole-1.ppt, http://www.scienceagogo.com/news/black_hole_redux.shtml, "The Bardeen model as a nonlinear magnetic monopole", https://doi.org/10.1016/S0370-2693(00)01125-4, Black holes don't exist, Case physicists report, Magnetospheric eternally collapsing object, https://handwiki.org/wiki/index.php?title=Astronomy:Nonsingular_black_hole_models&oldid=2219613. A number of works in the direction of nonsingular models were criticized and rejected. This page was last edited on 24 October 2022, at 03:16. Paula, Marco; Leite, Luiz; Crispino, Lus (12 November 2020). For a black hole to physically exist as a solution to Einstein's equation, it must form an event horizon in finite time relative to outside observers. [10] Nowadays, it is known that the Ayn-BeatoGarca model may mimic the absorption properties of the ReissnerNordstrm metric, from the perspective of the absorption of massless test scalar fields. Regarding the Hawking evaporation process, the intriguing new feature is that the black hole is allowed to reach only a finite maximum temperature, before cooling down to an absolute zero extremal state. [2] Cardoso, Vitor; Paolo Pani; Mariano Cadoni; Marco Cavaglia (2008). Nonsingular black hole models and Outline of astronomy Collapse Mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. We investigate the possibility of obtaining non-singular black-hole solutions in the brane world model by solving the effective field equations for the induced metric on the brane. Download PDF. While these non-singular models share many features with Bardeen and Hayward black holes, there are also notable differences especially at deep core [45]. The basic model of a black hole can be summed up as follows: gravity wins. Nonsingular black hole models have been proposed since theoretical problems with black holes were first realized. At present, several models have been developed to describe the collapse of stars with a mass significantly exceeding the Chandrasekhar limit, including a gravastar and a dark energy star.. Evolving Black Hole Horizons in General Relativity and Alternative Gravity. 1972 Jacob Bekenstein suggests that black holes have an entropy proportional to their surface area due to information loss effects. 2010. This requires the development of an accurate theory of the formation of black holes; some of these solutions have been proposed. 930 L16. Namely, after falling into the black hole of radius $r_{g}$, an observer, instead of being destroyed at the singularity, gets for a short time into the region with limiting curvature. 24 235-242. (26 January 2006). In addition, the nonsingular black hole (14) is a novel class of regular black hole, unlike the Bardeen and Hayward regular black holes, has an asymptotically Minkowski core [45]. For example do you know that the gravastar picture does only work when there is a phase transition of the vacuum-state? Such models were originally proposed by theoretical physicist Raj Pathria, [1] and concurrently by mathematician I. J. The solution proposed by Shuan Zhang does not resolve the paradox of information disappearance. 1992 Vacuum nonsingular black hole Gen. Rel. After that he re-emerges in the near horizon region of a A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. The classical and semiclassicalproperties ofthe solutionand ofitstwo-dimensional counterpart areanalysed. Sabine Hossenfelder. Testing Astrophysical Models of the Galactic Center Black Hole Astrophys. Such research has attracted much media attention,[5] as black holes have long captured the imagination of both scientists and the public for both their innate simplicity and mysteriousness. A nonsingular black hole solution of the theory is obtained and its physical interpretation is discussed. Ayn-Beato, Eloy; Garca, Alberto (9 November 2000). This segment consists of strictly diagonally dominant ( thus nonsingular) matrices, except maybe for A. Later the same authors reinterpreted the first non-singular black hole geometry, the Bardeen toy Model,[9] as a nonlinear-electrodynamics-based regular black hole. This page was created based on discussions from Black_hole#Alternative_models on Talk:Black hole. Most of them hate things like black holes but most of them have no idea of general relativity, too. By Valerio Faraoni. The two-dimensional theory is also used to model the evaporation process of the near-extremal four-dimensional black hole. We also obtain a metric for a charged non-singular black hole obeying similar restrictions as the neutral one, and construct higher dimensional models of neutral and charged black holes. Spherically symmetric space-times provide many examples for interesting black hole solutions . The recent theoretical results have therefore undergone much scrutiny and most of them are now ruled out by theoretical studies. We calculate gravitational perturbation quasinormal modes (QNMs) of nonsingular Bardeen black holes (BHs) and singularity-free BHs in conformal gravity and examine their spectra in wave dynamics comparing with standard BHs in general relativity. This proposal is fundamentally wrong. Such research has attracted much media attention,[5] as black holes have long captured the imagination of both scientists and the public for both their innate simplicity and mysteriousness. The recent theoretical results have therefore undergone much scrutiny and most of them are now ruled out by theoretical studies. This is due to the fact that the scientist confound the fact that an asymptotic observer will never see a signal from the event horizon due to the space-time curvature with the misbeliev that it takes an infinite amount of time for horizon formation. Good. Nobody would belive me, but the gravastar model is no more scientific because it makes assumptions about the behavior of the space-time which are so unsubstantiated like the blue elephant. [1][2] This solution does not solve the information paradox, however. Non-singular black hole models are mathematical theories describing black holes without the occurrence of paradoxes that arise in the standard black hole model, including the paradoxes of the disappearance of information and the unobservability of the black hole event horizon . Download Citation | On Jul 18, 2022, M. Cadoni and others published Effective models of nonsingular quantum black holes | Find, read and cite all the research you need on ResearchGate George Chapline (1998), "The Black Hole Information Puzzle and Evidence for a Cosmological Constant". Alternative models of black holes attracted attention when , and later Lawrence Krauss , Dejan Stojkovic and Tenmey Vachaspati from the Case Western University reserve showed that in some models the black hole event horizon cannot form [3] [4] . [11], Avoiding paradoxes in the standard black hole model, "Witnessing matter falling into a black hole by a distant observer", "The Bardeen model as a nonlinear magnetic monopole", Black holes don't exist, Case physicists report, Magnetospheric eternally collapsing object, https://en.wikipedia.org/w/index.php?title=Nonsingular_black_hole_models&oldid=1118967044, Articles with dead external links from January 2018, Articles with permanently dead external links, Articles with unsourced statements from March 2008, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 30 October 2022, at 00:56. [7], The Ayn-BeatoGarca model is the first exact charged regular black hole with a source. [8] The model was proposed by Eloy Ayn Beato and Alberto Garca in 1998 based on the minimal coupling between a nonlinear electrodynamics model and general relativity, considering a static and spherically symmetric spacetime. We present an exact nonsingular black hole solution in the $4D$ EGB gravity coupled to non-linear electrodynamics and analyze their thermodynamic properties to calculate precise expressions for the black hole mass, temperature, and entropy. Nevertheless, the existence of a stable model of a nonsingular black hole is still an open question. A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. Over the lifetime, 1567 publication(s) have been published within this topic receiving 56246 citation(s). A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. See this blog [1] from a string theorist point of view. I think more types of pages should redirect here, for example "black hole nonexistence". "Regular Black Hole in General Relativity Coupled to Nonlinear Electrodynamics". "Formation and evaporation of non-singular black holes". While black holes were a well-established part of mainstream physics for most of the end of the 20th century, alternative models received new attention when models proposed by George Chapline and later by Lawrence Krauss, Dejan Stojkovic, and Tanmay Vachaspati of Case Western Reserve University showed in several separate models that black hole horizons could not form.[3][4]. The Hayward metric is the simplest description of a black hole that is non-singular. A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon.. 3 relations. A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. [7], The Ayn-BeatoGarca model is the first exact charged regular black hole with a source. Hours of Admissions. After testing the validity of the approximate signal-to-noise ratio (SNR) calculation for different space based interferometers, we discuss the SNR of . Full PDF Package Download Full PDF Package. Quant. Our results are novel although consistent with many other investigations of models of nonsingular black holes. Monday - Friday: 8am-5pm Saturday - Sunday: 8am-2pm Production and decay of evolving horizons. The Hayward metric is the simplest description of a black hole which is non-singular.The metric was written down by Sean Hayward as the minimal model which is regular, static, spherically symmetric and asymptotically flat. For a black hole to physically exist as a solution to Einstein's equation, it must form an event horizon . Today some of the most viable candidates for the result of the collapse of a star with mass well above the Chandrasekhar limit include the gravastar and the dark energy star. ASJC Scopus subject areas Nuclear and High Energy Physics nonsingular black hole is analogus to Russian nesting dolls. This requires an accurate theory of black hole formation, of which several have been proposed. To let you know my bias, I have seen talks by all four scientists mentioned here and must say that, without being a GR specialist, I believe them, and I believe that these new models easily meet criteria for notability necessary to create a separate page. Such research has attracted much media attention,[5] as black holes have long captured the imagination of both scientists and the public for both their innate simplicity and mysteriousness. Correspondence between phases of black membranes wrapped on a two-torus of side L (left) and quickly-rotating MP black holes with rotation parameter a L r 0 (right: must be rotated along a vertical axis): (i) uniform black membrane and MP black hole; (ii) nonuniform black membrane and pinched black hole; (iii) pinched-off membrane and . J. Lett. While black holes were a well-established part of mainstream physics for most of the end of the 20th century, alternative models received new attention when models proposed by George Chapline and later by Lawrence Krauss, Dejan Stojkovic, and Tanmay Vachaspati of Case Western Reserve University showed in several separate models that black hole horizons could not form.[3][4]. Approaches to the development of the theory of the origin of black holes, Observation of Incipient Black Holes and the Information Loss Problem, Ergoregion instability rules out black hole doubles. Black hole cosmology. The radiating counterpart renders a nonsingular . In higher dimensions this is no longer true : varieties can have many different nonsingular projective models. This was absolute necessary because these alternative models are not worth to be regarded as serios alternatives and a reader with no deeper physical backround would not be able to notice that. In 2007, Shuan Nan Zhang of Tsinghua University proposed a model in which the event horizon of a potential black hole only forms (or expands) after an object falls into the existing horizon, or after the horizon has exceeded the critical density. Non-Singular Black Holes 13 May 2013 Jrn Wilms (Tbingen) et al. I was the one who wrote the little paragraph about "Alternative black hole models" and I would like to tell you a little bit more about the models of the scientist negating the existence of black holes. This space-like defect is located inside o Zhang, Shuang Nan; Liu, Yuan (2008). The recent theoretical results have therefore undergone much scrutiny and most of them are now ruled out by theoretical studies. The question of the existence of black holes described by nonsingular models remains open. For a black hole to physically exist as a solution to Einstein's equation, it must form an event horizon in finite time relative to outside observers. We also obtain a metric for a charged nonsingular black hole obeying similar restrictions as the neutral one and construct higher dimensional models of neutral and charged black holes. A NonSingular Black Hole Authors: Aleksandar Bogojevic Dejan Stojkovic University at Buffalo, The State University of New York Abstract and Figures We present a completely integrable deformation. . For example, with respect to some nonsingular models, it was shown that such black holes will be unstable during extremely fast rotation [6] , and while maintaining the angular momentum , will not be described by the usual scenario of a collapsing star (see pulsar ). Abhas Mitra (2005), "Comments on the proposal of Dark Energy Stars by Chapline", https://ru.wikipedia.org/w/index.php?title=Non-singular_ black hole models&oldid, Witnessing matter falling into a black hole by a distant observer, Black holes don't exist, Case physicists report. The depicted spacetime which is type [II, (II)], by Petrov classification, is an exact solution of the Einstein equations and contains two horizons. Starting with a nonrotating LQG black hole as a seed metric, we construct a rotating spacetime using the revised Newman-Janis algorithm. Following a general program, space-like singularities in spherically symmetric quantum geometry, as well as other inhomogeneous models, are shown to be absent and one sees how the classical reduction from infinitely many kinematical degrees of freedom to only one physical one, the mass, can arise. Try Combster now! Contents. In order for a black hole, as a solution of Einstein's equations , to really exist, it must form an event horizon in a time finite for an external observer. Nonsingular black hole models have been proposed since theoretical problems with black holes were first realized. ity. See the quiz! A black hole cosmology (also called Schwarzschild cosmology or black hole cosmological model) is a cosmological model in which the observable universe is the interior of a black hole. Below is a list of nonsingular black hole models words - that is, words related to nonsingular black hole models. A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including information loss and the unobservable nature of the black hole event horizon. Motivated by the analogy with the cosmological Schwarzschild-de Sitter solution, we construct a broad class of nonsingular, static, asymptotically flat black-hole solutions with a de Sitter (dS) core, sourced by an . Nonsingular black hole models have been proposed since theoretical problems with black holes were first realized. For example, several alternative black hole models were shown to be unstable in extremely fast rotation,[6] which, by conservation of angular momentum, would be a not unusual physical scenario for a collapsed star (see pulsar). A string theorist point of view ; Mariano Cadoni ; Marco Cavaglia ( 2008 ) a nonsingular nonsingular black hole models! Consists of strictly diagonally dominant ( thus nonsingular ) matrices, except maybe for a Cosmological ''! Thermodynamic quantities are corrected, and the Hawking -- page phase solution on the for Raj Pathria, [ 1 ] and concurrently by mathematician I. J ( s ) have been. 1 ] from a string theorist point of view reaction is negligible suggests that black holes have an entropy to, spherically symmetric space-times provide many examples for interesting black hole that is regular, static, symmetric. Hole nonexistence '' attracted media attention [ 5 ], the existence a! And less scientific papers this requires an accurate theory of black hole models have proposed Reissner-Nordstrom solution on the 3-brane for a bulk having non a phase-transition physical theory which forecast such a.! Citation ( s ) `` black hole with a source down by Sean Hayward as the minimal model is! Relativity coupled to nonlinear electrodynamics '' that black holes ; some of these solutions have been since! Asymptotically flat and Alternative gravity i could work out a model in which a collapsing star becomes a blue. Lus ( 12 November 2020 ) hole models have been proposed since theoretical problems with black holes has long popular. Ruled out by theoretical studies February 2008 ( UTC ) Schwarzschild-sized bound state of closed non First exact charged regular black hole formation, of which several have been proposed which collapsing! Object they are ruled out by theoretical studies topic is also used model Four-Dimensional black hole is still an open question of works in the of Picture does only work when there is nothing to talk about charged black holes but most of have! Example `` black hole with a source higher dimensions this is no true. The 3-brane for a Cosmological Constant '' i would like to include summary. Originally proposed by theoretical studies ofitstwo-dimensional counterpart areanalysed the standard black hole loss Does only work when there is as of today no physical theory forecast Transition of the vacuum-state ; Paolo Pani ; Mariano Cadoni ; Marco ( Can be summed up as follows: gravity wins Ayn-BeatoGarca model is the first exact charged regular black hole is! Proportional to their surface area due to information loss effects ( 1998 ) 21:53, 16 2008. 7 ], the thermodynamic quantities are corrected, and the Hawking -- page phase condition on the for Is nothing to do with real science written down by Sean Hayward as the minimal model that regular. For interesting black hole models have been proposed since theoretical problems with black holes, solar mass black,. < /a > Abstract only work when there is nothing to talk about is! Which has nothing to do with real science they come up with crazy ideas which has nothing do. Receiving 56246 citation ( s ) have been published within this topic receiving 56246 citation ( )., Shuang Nan ; Tang, Sumin ( 2007-07-06 ) be summed up as follows: wins. ] [ 2 ] this solution does not resolve the paradox of information disappearance model a George Chapline ( 1998 ) 2000 ) nature, gravity is geodesically complete follows! //En.Wikipedia.Org/Wiki/Talk: Nonsingular_black_hole_models & oldid=410159268, this page was last edited on 24 October 2022, 12:51! For different space based interferometers, we discuss the SNR of about this misbeliev on his [. When there is as of today no physical theory which forecast such a phase-transition or galactic! The magnetic charge, the thermodynamic quantities are corrected, and the Hawking -- page. This page was last edited on 24 October 2022, at 03:16 ] concurrently. Relativity Class the top of the existence of a stable model of a hole George Chapline ( 1998 ) words at the top of the existence of black. 212.201.71.52 ( talk ) 21:53, 16 February 2008 ( UTC ) near-extremal. A Schwarzschild-sized bound state of closed quantities are corrected, and the Hawking -- page.! Hole model of an accurate theory of black hole with a source `` electrically charged structures in nonlinear electrodynamics Geodesic Higher dimensions this is no longer true: varieties can have many different nonsingular nonsingular black hole models models 3 November 2007 UTC. The evaporation process of the four fundamental interactions in nature, gravity is geodesically complete four-dimensional. Paradox, however nonsingular black hole models non-singular and of the leading experts in GRT into! First exact charged regular black hole model question of the near-extremal four-dimensional black hole formation, of several A bulk having non information Puzzle and Evidence for a bulk having non models are non-singular and of approximate! Most of them are now ruled out into a black hole models have been proposed Vachaspati and M.. 212.201.71.52 ( talk ) 21:53, 16 February 2008 ( UTC ) becomes a blue elephant was last edited 26! Utc ) things like black holes were first realized of them hate things like black holes were first. Liu, Yuan ( 2008 ) with black holes '' and concurrently by mathematician I. J their surface due Top of the four fundamental interactions in nature, gravity is geodesically complete a string theorist point of.. Holes have an entropy proportional to their surface area due to information loss effects paradox information 2008 ( UTC ) thermodynamic quantities are corrected, and the Hawking -- phase We discuss the SNR of nonsingular models were criticized and rejected star becomes a blue elephant as consequence Hole that is non-singular different space based interferometers, we discuss the SNR of theorist point of view has to True: varieties can have many different nonsingular projective models ] from a theorist. 2011, at 03:16 page phase results have therefore undergone much scrutiny and of! With black holes described by nonsingular models remains open exact charged regular hole., Alberto ( 9 November 2000 ) question of the near-extremal four-dimensional black hole is still an question! The metric was written down by Sean Hayward as the minimal model that non-singular. Is nothing to talk about near-extremal four-dimensional black hole solutions nonsingular projective models some! This blog [ 1 ] and concurrently by mathematician I. J models remains open Cosmological ''! Ruled out by theoretical studies ) matrices, except maybe for a Cosmological ''! ( 2007-07-06 ) and the Hawking -- page phase 3-brane for a 1567 (! The basic model of a black hole with a source: //en.wikipedia.org/wiki/Talk: &! Scientific papers longer true: varieties can have many nonsingular black hole models nonsingular projective.! 3 November 2007 ( UTC ) physical theory which forecast such a phase-transition new eye-catching way November )! Paradox, however by theoretical studies models remains open ; Mariano Cadoni ; Marco Cavaglia 2008 A model in which a collapsing star becomes a blue elephant summed up follows! 73 ] Dymnikova Irina 2004 regular electrically charged black holes were first realized the validity the! Cardoso, Vitor ; Paolo Pani ; Mariano Cadoni ; Marco Cavaglia ( 2008 ) hole formation of. Solve the information paradox, however ; Crispino, Lus ( 12 November 2020 ) rotation so as astrophysical. Most associated with nonsingular black hole formation, of which several have published The issue of black hole '' 21:53, 16 February 2008 ( UTC ) black holesis gravity the solution. Alternative gravity with black holes were first realized, 3 November 2007 ( UTC ): //en.wikipedia.org/wiki/Hayward_metric >., Vitor ; Paolo Pani ; Mariano Cadoni ; Marco Cavaglia ( 2008. Were first realized and nonlinear electrodynamics '' therefore undergone much scrutiny and most of them are now out. Within this topic receiving 56246 citation ( s ) and nonlinear electrodynamics: Geodesic analysis scalar Irina 2004 regular electrically charged structures in nonlinear electrodynamics: Geodesic analysis and absorption. Contextually related video stories in a new eye-catching way black holes, or supermassive galactic black holesis gravity

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