Showing 261 - 280 results of 319 for search '"black hole"', query time: 0.08s Refine Results
  1. 261

    A Possible Solution of the Cosmological Constant Problem Based on GW170817 and Planck Observations with Minimal Length Uncertainty by Abdel Magied Diab, Abdel Nasser Tawfik

    Published 2022-01-01
    “…We propose generalized uncertainty principle (GUP) with an additional term of quadratic momentum motivated by string theory and black hole physics and providing a quantum mechanical framework for the minimal length uncertainty, at the Planck scale. …”
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    Article
  2. 262

    Why the Length of a Quantum String Cannot Be Lorentz Contracted by Antonio Aurilia, Euro Spallucci

    Published 2013-01-01
    “…In the latter case, we determine the critical boost that separates the ordinary “particle phase,” characterized by the Compton wavelength, from the “black hole phase,” characterized by the effective Schwarzschild radius of the colliding system.…”
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  3. 263

    F(R) Gravity’s Rainbow and Its Einstein Counterpart by S. H. Hendi, B. Eslam Panah, S. Panahiyan, M. Momennia

    Published 2016-01-01
    “…In this paper, we introduce charged black hole solutions with power Maxwell invariant source in the context of gravity’s rainbow. …”
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  4. 264

    AGN Obscuration and the Unified Model by Stefano Bianchi, Roberto Maiolino, Guido Risaliti

    Published 2012-01-01
    “…In this paper, we review the various pieces of evidence for obscuring media on different scales, from the vicinity of the black hole to the host galaxy, in order to picture an updated unification scenario explaining the complex observed phenomenology. …”
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  5. 265

    Minimum asymptotic energy of a charged spherically symmetric thin-shell wormhole and its stability by S. Habib Mazharimousavi

    Published 2025-02-01
    “…Abstract The static spherically symmetric thin shell of proper mass m and electric charge q around a central star or black hole of mass M is in general unstable. Although with fine-tuned m, q,  and M it can be considered quasi-stable. …”
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  6. 266

    Evidence for AGN Feedback in Galaxy Clusters and Groups by Myriam Gitti, Fabrizio Brighenti, Brian R. McNamara

    Published 2012-01-01
    “…It has thus become clear that the feedback from the central black hole must be taken into account in any model of galaxy evolution. …”
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  7. 267

    Mutual Correlation in the Shock Wave Geometry by Xiao-Xiong Zeng, Hong-Bo Shao, Ling Li, Xian-Ming Liu

    Published 2018-01-01
    “…We probe the shock wave geometry with the mutual correlation in a spherically symmetric Reissner-Nordström AdS black hole on the basis of the gauge/gravity duality. …”
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  8. 268

    Circular Antenna Array Synthesis Using Multiverse Optimizer by Ahmet Emre Taser, Kerim Guney, Erhan Kurt

    Published 2020-01-01
    “…During the exploration, exploitation, and local search phases of calculation, MVO uses three concepts in cosmology; white hole, black hole, and wormhole. Convergence capability of this nature-inspired algorithm is employed for finding optimum amplitude and position values of CAA elements in order to achieve an array pattern with low maximum sidelobe level (MSL) and minimum circumference. …”
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  9. 269

    Herrera complexity and shadows of spherically symmetric compact objects by Subhasis Nalui, Subhra Bhattacharya

    Published 2025-02-01
    “…Advanced observational data analysis tools augments the hope for identification of exotic gravitational objects, like the so called “black hole mimickers” and may serve as testing ground for other gravity theories. …”
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  10. 270

    The cosmic timeline implied by the highest redshift quasars by Fulvio Melia

    Published 2024-12-01
    “…Abstract The conventional picture of supermassive black-hole growth in the standard model had already been seriously challenged by the emergence of $$\sim 10^9\;M_\odot $$ ∼ 10 9 M ⊙ quasars at $$z\sim 7.5$$ z ∼ 7.5 , conflicting with the predicted formation of structure in the early $$\varLambda $$ Λ CDM Universe. …”
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  11. 271

    Improved Clonal Selection Algorithm Based on Biological Forgetting Mechanism by Chao Yang, Bing-qiu Chen, Lin Jia, Hai-yang Wen

    Published 2020-01-01
    “…This part of inactive antibody forms a “black hole” of the antibody set, which is difficult to remove and update in a timely manner, thus affecting the speed at which the algorithm approximates the optimal solution. …”
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  12. 272

    Kilonova/Macronova Emission from Compact Binary Mergers by Masaomi Tanaka

    Published 2016-01-01
    “…We review current understanding of kilonova/macronova emission from compact binary mergers (mergers of two neutron stars or a neutron star and a black hole). Kilonova/macronova is emission powered by radioactive decays of r-process nuclei and it is one of the most promising electromagnetic counterparts of gravitational wave sources. …”
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  13. 273

    Detection of selective forwarding attacks based on adaptive learning automata and communication quality in wireless sensor networks by Hongliang Zhu, Zhihua Zhang, Juan Du, Shoushan Luo, Yang Xin

    Published 2018-11-01
    “…Simulation results indicate the effectiveness of the proposed method in detecting ordinary selective forwarding attacks, black-hole attacks, on-off attacks, and energy exhaustion attacks. …”
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  14. 274

    Neural ODEs for holographic transport models without translation symmetry by Zhuo-Fan Gu, Yu-Kun Yan, Shao-Feng Wu

    Published 2025-01-01
    “…This allows us to determine $$\eta _{\textrm{re}}(\omega )$$ η re ( ω ) of a strongly coupled field theory by the black hole metric and the graviton mass. The latter serves as the bulk dual to the translation symmetry breaking on the boundary. …”
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  15. 275

    Detection and Prevention of Man-in-the-Middle Spoofing Attacks in MANETs Using Predictive Techniques in Artificial Neural Networks (ANN) by Robert A. Sowah, Kwadwo B. Ofori-Amanfo, Godfrey A. Mills, Koudjo M. Koumadi

    Published 2019-01-01
    “…These networks are more susceptible to attacks such as black hole and man-in-the-middle (MITM) than their corresponding wired networks. …”
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  16. 276

    Information scrambling with higher-form fields by Karunava Sil, Sourav Maji, Stavros Christodoulou, Abhishek Chowdhury

    Published 2025-02-01
    “…We started by computing the late time behavior of OTOCs involving U(1) current operators in five dimensional AdS-Schwarzschild black hole geometry for the 2-form antisymmetric B-fields. …”
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  17. 277

    Circular light orbits of a general, static, and spherical symmetrical wormhole with $$Z_2$$ Z 2 symmetry by Naoki Tsukamoto

    Published 2024-12-01
    “…In this study, we categorize the numbers of the circular light orbits of the $$Z_2$$ Z 2 -symmetrical wormhole and their stability from the derivatives of an effective potential at the throat and we investigate the circular light orbits around a Simpson–Visser black-bounce spacetime, a Damour–Solodukhin wormhole spacetime, a Reissner–Nordström black-hole-like wormhole spacetime or a charged Damour–Solodukhin wormhole spacetime as examples. …”
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  18. 278

    Aspects of rotating anisotropic dark energy stars by O. P. Jyothilakshmi, Lakshmi J. Naik, V. Sreekanth

    Published 2024-12-01
    “…The dimensionless quadrupole moment $$QM/J^2$$ Q M / J 2 measuring deviation from a Kerr metric black hole was obtained for anisotropic dark energy stars. …”
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  19. 279

    Interaction of an Outflow with Surrounding Gaseous Clouds as the Origin of Late-time Radio Flares in Tidal Disruption Events by Jialun Zhuang, Rong-Feng Shen, Guobin Mou, Wenbin Lu

    Published 2025-01-01
    “…Close encounter between a star and a supermassive black hole (SMBH) results in the tidal disruption of the star, known as a tidal disruption event (TDE). …”
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  20. 280

    Phase-transition-induced Collapse of Proto-compact Stars and Its Implication for Supernova Explosions by Xu-Run Huang, Shuai Zha, Ming-chung Chu, Evan P. O’Connor, Lie-Wen Chen

    Published 2025-01-01
    “…A small portion (∼0.04%−1%) of the released binding energy Δ E _B transforms into the diagnostic explosion energy E _exp,diag , which saturates at  ∼6 × 10 ^51 erg near the black hole formation. Note that our E _exp,diag represents an upper limit of the final explosion energies in realistic supernova simulations. …”
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