Results 11 to 20 of about 55,540 (200)
Possibility of hypothetical stable micro black hole production at future 100 TeV collider
European Physical Journal C: Particles and Fields, 2017 We study the phenomenology of TeV-scale black holes predicted in theories with large extra dimensions, under the further assumption that they are absolutely stable. Our goal is to present an exhaustive analysis of safety of the proposed 100 TeV collider,
A. V. Sokolov, M. S. Pshirkov
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Surrounded Vaidya solution by cosmological fields
European Physical Journal C: Particles and Fields, 2018 In the present work, we study the general surrounded Vaidya solution by the various cosmological fields and its nature describing the possibility of the formation of naked singularities or black holes.
Y. Heydarzade, F. Darabi
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Growth of a Massive Black Hole in a Dense Star Cluster Via Tidal Disruption Accretion
The Astrophysical Journal, 2023 Stars that are tidally disrupted by a massive black hole (MBH) may contribute significantly to the growth of the MBH, especially in dense nuclear star clusters.
Seungjae Lee, Ji-hoon Kim, Boon Kiat Oh
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“Black Star” or Astrophysical Black Hole? [PDF]
AIP Conference Proceedings, 2008 Recently wide publicity has been given to a claim by T. Vachaspati that "black holes do not exist", that the objects known as black holes in astrophysics should rather be called "black stars" and they not only do not have event horizons but actually can be the source of spectacular gamma ray bursts.
K. Petrovay +3 more
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Constraints on the Cosmological Coupling of Black Holes from the Globular Cluster NGC 3201
The Astrophysical Journal Letters, 2023 Globular clusters are among the oldest stellar populations in the Milky Way; consequently, they also host some of the oldest known stellar-mass black holes, providing insight into black hole formation and evolution in the early ( z ≳ 2) universe.
Carl L. Rodriguez
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Radio Emission From a z = 10.1 Black Hole in UHZ1
The Astrophysical Journal, 2023 The recent discovery of a 4 × 10 ^7 M _⊙ black hole (BH) in UHZ1 at z = 10.3, just 450 Myr after the Big Bang, suggests that the seeds of the first quasars may have been direct-collapse BHs from the collapse of supermassive primordial stars at z ∼ 20 ...
Daniel J. Whalen +2 more
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The Astrophysical Journal Letters, 2023 The recent Chandra-JWST discovery of a quasar in the z ≈ 10.1 galaxy UHZ1 reveals that accreting supermassive black holes were already in place 470 million years after the Big Bang. The Chandra X-ray source detected in UHZ1 is a Compton-thick quasar with
Priyamvada Natarajan +5 more
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What is the final state of a black hole merger? [PDF]
, 2018 In this short paper we discuss the possibility of testing the nature of astrophysical black holes using the recently observed black hole mergers. We investigate the possibility that a secondary black hole is created in the merger of two astrophysical ...
Calmet, Xavier, Casadio, Roberto
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Quantum black hole seismology. II. Applications to astrophysical black holes [PDF]
Physical Review D, 2020 14 pages, 14 figures. NO and DT equally contributed to this work.
Oshita, Naritaka +2 more
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European Physical Journal C: Particles and Fields, 2020 The possible existence of naked singularities, hypothetical astrophysical objects, characterized by a gravitational singularity without an event horizon is still an open problem in present day astrophysics.
Shahab Shahidi +2 more
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