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Black holes [PDF]

open access: yesReviews of Modern Physics, 1999
13 pages, To appear in the American Physical Society Centenary issue of Reviews of Modern Physics, March ...
Horowitz, Gary T., Teukolsky, Saul A.
openaire   +5 more sources

Black holes [PDF]

open access: yesProceedings of the National Academy of Sciences, 2001
Recent progress in black hole research is illustrated by three examples. We discuss the observational challenges that were met to show that a supermassive black hole exists at the center of our galaxy. Stellar-size black holes have been studied in x-ray binaries and microquasars.
Brügmann, B., Ghez, A., Greiner, J.
openaire   +3 more sources

Validation of pencil beam scanning proton therapy with multi‐leaf collimator calculated by a commercial Monte Carlo dose engine

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract This study aimed to evaluate the clinical beam commissioning results and lateral penumbra characteristics of our new pencil beam scanning (PBS) proton therapy using a multi‐leaf collimator (MLC) calculated by use of a commercial Monte Carlo dose engine.
Yuki Tominaga   +5 more
wiley   +1 more source

First Detection of an Overmassive Black Hole Galaxy UHZ1: Evidence for Heavy Black Hole Seed Formation from Direct Collapse

open access: yesThe 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
doaj   +1 more source

Black Holes [PDF]

open access: yes, 2021
10 pages, 5 figures, published entry in Encyclopedia of ...
openaire   +2 more sources

Black hole excision for dynamic black holes [PDF]

open access: yesPhysical Review D, 2001
5 pages, 7 figures, published version with changes to equation (2)
Denis Pollney   +5 more
openaire   +3 more sources

Moulting Black Holes [PDF]

open access: yesJournal of High Energy Physics, 2012
Abstract We find a family of novel supersymmetric phases of the D1-D5 CFT, which in certain ranges of charges have more entropy than all known ensembles. We also find bulk BPS configurations that exist in the same range of parameters as these phases, and have more entropy than a BMPV black hole; they can be thought of as coming ...
I. Bena   +4 more
openaire   +6 more sources

Instability of charged anti-de Sitter black holes

open access: yesPhysics Letters B, 2016
We have studied the instability of charged anti-de Sitter black holes in four- or higher-dimensions under fragmentation. The unstable black holes under fragmentation can be broken into two black holes.
Bogeun Gwak, Bum-Hoon Lee, Daeho Ro
doaj   +1 more source

Martin Heidegger and the Being and Time of Black Holes [PDF]

open access: yesФилософия и космология, 2020
Scientific narratives about cosmology often present black holes as frightening objects of both creation and destruction, the centres of which are concealed behind event horizons.
Gregory Phipps
doaj   +1 more source

Black holes and fourfolds [PDF]

open access: yesJournal of High Energy Physics, 2012
Abstract We establish a relation between the structure governing four- and five- dimensional black holes and multicenter solutions on the one hand and Calabi-Yau flux compactifications of M-theory and type IIB string theory on the other hand, for both supersymmetric and non-supersymmetric solutions.
Iosif Bena   +2 more
openaire   +7 more sources

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