Results 11 to 20 of about 365,775 (289)

UV–Optical Disk Reverberation Lags despite a Faint X-Ray Corona in the Active Galactic Nucleus Mrk 335

The Astrophysical Journal, 2023
 We present the first results from a 100-day Swift, NICER, and ground-based X-ray–UV–optical reverberation mapping campaign of the Narrow-line Seyfert 1 Mrk 335, when it was in an unprecedented low X-ray flux state.
Erin Kara, Aaron J. Barth, Edward M. Cackett, Jonathan Gelbord, John Montano, Yan-Rong Li, Lisabeth Santana, Keith Horne, William N. Alston, Douglas Buisson, Doron Chelouche, Pu Du, Andrew C. Fabian, Carina Fian, Luigi Gallo, Michael R. Goad, Dirk Grupe, Diego H. González Buitrago, Juan V. Hernández Santisteban, Shai Kaspi, Chen Hu, S. Komossa, Gerard A. Kriss, Collin Lewin, Tiffany Lewis, Michael Loewenstein, Anne Lohfink, Megan Masterson, Ian M. McHardy, Missagh Mehdipour, Jake Miller, Christos Panagiotou, Michael L. Parker, Ciro Pinto, Ron Remillard, Christopher Reynolds, Daniele Rogantini, Jian-Min Wang, Jingyi Wang, Dan Wilkins   +39 more
doaj   +1 more source

String physics and black holes [PDF]

Nuclear Physics B - Proceedings Supplements, 1996
20 pages, Latex (needs espcrc2.sty), 6 ...
Susskind, Leonard, Uglum, John
openaire   +3 more sources

Nonquasinormal Modes and Black Hole Physics [PDF]

Physical Review Letters, 2004
The near-horizon geometry of a large class of extremal and near-extremal black holes in string and M theory contains three-dimensional asymptotically anti-de Sitter space. Motivated by this structure, we are led naturally to a discrete set of complex frequencies defined in terms of the monodromy at the inner and outer horizons of the black hole.
Birmingham, Danny, Carlip, S.
openaire   +3 more sources

Burns space and holography

Journal of High Energy Physics, 2023
We elaborate on various aspects of our top-down celestial holographic duality wherein the semiclassical bulk spacetime is a 4d asymptotically flat, self-dual Kähler geometry known as Burns space.
Kevin Costello, Natalie M. Paquette, Atul Sharma   +2 more
doaj   +1 more source

QCD and spin effects in black hole airshowers [PDF]

, 2007
In models with large extra dimensions, black holes may be produced in high-energy particle collisions. We revisit the physics of black hole formation in extensive airshowers from ultrahigh-energy cosmic rays, focusing on collisional QCD and black hole ...
Arunava Roy, Marco Cavaglià, S. C. Park   +2 more
core   +3 more sources

Quantum vortex instability and black hole superradiance

Physical Review Research, 2022
Vortices and black holes set the scene for many interesting dynamical processes in physics. Here, we study the dynamical instability of quantized vortices and rotational superradiance around rotating black holes, illustrating in the process that the same
Sam Patrick, August Geelmuyden, Sebastian Erne, Carlo F. Barenghi, Silke Weinfurtner   +4 more
doaj   +1 more source

Radial fall of a test particle onto an evaporating black hole [PDF]

, 2005
A test particle falling into a classical black hole crosses the event horizon and ends up in the singularity within finite eigentime. In the `more realistic' case of a `classical' evaporating black hole, an observer falling onto a black hole observes a ...
Andreas Aste, Babichev V., Dirk Trautmann, Hajicek W., Stephens G.   +4 more
core   +3 more sources

On the Intrinsic Parity of Black Holes [PDF]

, 2002
We investigate the intrinsic parity of black holes. It appears that discrete symmetries require the black hole Hilbert space to be larger than suggested by the usual quantum numbers M (mass), Q (charge) and J (angular momentum).
't Hooft, 't Hooft, Aichelburg, Amati, Amati, Amati, Amati, Amati, Anchordoqui, Anchordoqui, Banks, Cardoso, Cheung, Coleman, D'Eath, D'Eath, D'Eath, D'Eath, Dimopoulos, Eardley, Emparan, Feng, Giddings, Giddings, Gould, Hsu, Hsu, Kohlprath, Krauss, Peskin, Peskin, Ringwald, Ringwald, Solodukhin, Stephen D.H Hsu, Uehara, Wald   +36 more
core   +2 more sources

Catfish: A Monte Carlo simulator for black holes at the LHC [PDF]

, 2006
We present a new Fortran Monte Carlo generator to simulate black hole events at CERN's Large Hadron Collider. The generator interfaces to the PYTHIA Monte Carlo fragmentation code.
Abazov, Abbiendi, Abreu, Acciarri, Acosta, Ahn, Ahn, Ahn, Ahn, Aichelburg, Alberghi, Amati, Anchordoqui, Antoniadis, Arkani-Hamed, Arkani-Hamed, Banks, Barger, Berti, Bjorken, Boos, Brandt, Brock, Cardoso, Cardoso, Cardoso, Cardoso, Casals, Casanova, Cavaglià, Cavaglià, Cavaglià, Cavaglià, Chamblin, Chamblin, Cheung, Cheung, Cornell, D. Summers, Dimopoulos, Duffy, Emparan, Emparan, Fairbairn, Fox, Fox, Frolov, Garay, Giddings, Giddings, Godang, Hall, Hannestad, Hannestad, Harris, Harris, Harris, Harris, Hawking, Heister, Hossenfelder, Ida, Ida, Ida, Jung, Kanti, Kanti, Kanti, Koch, Kohlprath, L. Cremaldi, Lai, Landsberg, Lonnblad, M. Cavaglià, Maartens, Nayak, Park, R. Godang, Randall, Randall, Rizzo, Rychkov, Sjostrand, Stocker, Tanaka, Thorne, Vasilenko, Voloshin, Voloshin, Yao, Yoshino, Yoshino, Yoshino   +93 more
core   +3 more sources

Critical collapse of collisionless matter - a numerical investigation [PDF]

, 1998
In recent years the threshold of black hole formation in spherically symmetric gravitational collapse has been studied for a variety of matter models. In this paper the corresponding issue is investigated for a matter model significantly different from ...
A. D. Rendall, A. D. Rendall, Alan D. Rendall, C. K. Birdsall, C. R. Evans, D. Christodoulou, D. Christodoulou, D. Christodoulou, D. Christodoulou, G. Rein, G. Rein, G. Rein, Gerhard Rein, J. A. Smoller, J. Schaeffer, Jack Schaeffer, L. I. Petrich, L. I. Petrich, M. W. Choptuik, M. W. Choptuik, R. Bartnik, S. L. Shapiro, S. L. Shapiro, S. L. Shapiro   +23 more
core   +3 more sources