Results 61 to 70 of about 2,804,318 (294)

Which Black Hole Is Spinning? Probing the Origin of Black Hole Spin with Gravitational Waves

open access: yesThe Astrophysical Journal Letters
Theoretical studies of angular momentum transport suggest that isolated stellar-mass black holes are born with negligible dimensionless spin magnitudes χ ≲ 0.01.
Christian Adamcewicz   +3 more
doaj   +1 more source

Features of globular cluster’s dynamics with an intermediate-mass black hole

open access: yesOpen Astronomy, 2018
In this paper, we address the question of how a central intermediate-mass black hole (IMBH) in a globular cluster (GC) affects dynamics, core collapse, and formation of the binary population.
Ryabova Marina V.   +3 more
doaj   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald   +7 more
wiley   +1 more source

Enhanced black hole mergers in binary–binary interactions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
We study the orbital evolution of black hole (BH) binaries in quadruple systems, where the tertiary binary excites large eccentricity in the BH binary through Lidov-Kozai (LK) oscillations, causing the binary BHs to merge via gravitational radiation. For typical BH binaries with masses $m_{1,2}\simeq 20M_\odot-30M_\odot$ and initial semimajor axis $a_0\
Liu, Bin, Lai, Dong
openaire   +2 more sources

Trapping black hole remnants [PDF]

open access: yes, 2005
Large extra dimensions lower the Planck scale to values soon accessible. The production of TeV mass black holes at the LHC is one of the most exciting predictions.
Bleicher, Marcus   +2 more
core  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

Quantum Aspects of Black Holes [PDF]

open access: yes, 2006
In this thesis we study two quantum aspects of black holes, their entropy and the Hawking effect. First, we present a model for the statistical interpretation of black hole entropy and show that this entropy emerges as a result of missing information ...
Deeg, Dorothea
core   +1 more source

Reassessing the spin of second-born black holes in coalescing binary black holes and its connection to the χeff – q correlation

open access: yesAstronomy & Astrophysics
Context. The mass ratio q and effective inspiral spin χeff of binary black hole mergers in the Gravitational-Wave Transient Catalog 4.0 (GWTC-4.0) have been reported to display a weaker anticorrelation compared to GWTC-3.0, a feature whose origin has ...
Wang Zi-Yuan   +5 more
doaj   +1 more source

GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs

open access: yesPhysical Review X, 2019
We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1  M_{⊙} during the first and second observing runs of the advanced gravitational-wave detector network.
B. P. Abbott   +1148 more
doaj   +1 more source

Metric for two arbitrary Kerr sources

open access: yesPhysics Letters B, 2019
The full metric describing a stationary axisymmetric system of two arbitrary Kerr sources, black holes or hyperextreme objects, located on the symmetry axis and kept apart in equilibrium by a massless strut is presented in a concise explicit form ...
V.S. Manko, E. Ruiz
doaj   +1 more source

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