Results 71 to 80 of about 170,936 (294)

Binary black hole mergers from field triples: properties, rates and the impact of stellar evolution [PDF]

, 2017
We consider the formation of binary black hole mergers through the evolution of field massive triple stars. In this scenario, favorable conditions for the inspiral of a black hole binary are initiated by its gravitational interaction with a distant ...
Antonini, Fabio, Hamers, Adrian S., Toonen, Silvia   +2 more
core   +4 more sources

Unlocking Photodetection Mode Switching from a Simple Lateral Design

Advanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong, Keng‐Te Lin, Joel van Embden, Taimur Ahmed, Yumeng Du, Dashen Dong, Yiwen Mai, Junlin Lu, Sumeet Walia, Baohua Jia, Tianyi Ma   +10 more
wiley   +1 more source

Dynamical Formation of the GW150914 Binary Black Hole

, 2016
We explore the possibility that GW150914, the binary black hole merger recently detected by Advanced LIGO, was formed by gravitational interactions in the core of a dense star cluster. Using models of globular clusters with detailed $N$-body dynamics and
Chatterjee, Sourav, Haster, Carl-Johan, Kalogera, Vicky, Rasio, Frederic A., Rodriguez, Carl L.   +4 more
core   +1 more source

Birth of massive black-hole binaries [PDF]

, 2011
If massive black holes (BHs) are ubiquitous in galaxies and galaxies experience multiple mergers during their cosmic assembly, then BH binaries should be common albeit temporary features of most galactic bulges. Observationally, the paucity of active BH pairs points toward binary lifetimes far shorter than the Hubble time, indicating rapid inspiral of ...
Colpi, M., Dotti, M., Mayer, L., Kazantzidis, S.   +3 more
openaire   +2 more sources

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

Monthly 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

Packed for Ossification: High‐Density Bioprinting of hPDC Spheroids in HAMA Toward Endochondral Ossification

Advanced Healthcare Materials, EarlyView.
Human periosteum‐derived cell spheroids bioprinted at high density within a hyaluronic acid matrix promote fusion and hypertrophic cartilage formation in vitro. Early encapsulation enhances spheroid interaction and matrix maturation, generating scalable cartilage templates intended for endochondral bone regeneration.
Ane Albillos Sanchez, Maria Paula Marks, Paula Casademunt, Adrián Seijas‐Gamardo, Ioannis Papantoniou, Lorenzo Moroni, Carlos Mota   +6 more
wiley   +1 more source

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

Astronomy & 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, Qin Ying, Hu Rui-Chong, Wang Yuan-Zhu, Meynet Georges, Song Han-Feng   +5 more
doaj   +1 more source

Metric for two arbitrary Kerr sources

Physics 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

Charged and rotating multi-black holes in an external gravitational field

European Physical Journal C: Particles and Fields, 2022
We construct analytical and regular solutions in four-dimensional General Relativity which represent multi-black hole systems immersed in external gravitational field configurations.
Marco Astorino, Adriano Viganò
doaj   +1 more source

Binary black holes on a budget: Simulations using workstations [PDF]

, 2007
Binary black hole simulations have traditionally been computationally very expensive: current simulations are performed in supercomputers involving dozens if not hundreds of processors, thus systematic studies of the parameter space of binary black hole ...
Bernd Brügmann, Brügmann B Gonzalez J Hannam M Husa S Sperhake U Tichy W, Duez M D, Hannam M Husa S Pollney D Brügmann B O'Murchadha N, Herrmann F, Jose González, Mark Hannam, Marronetti P, Marronetti P, Pedro Marronetti, Press W H, Pretorius F, Sascha Husa, Sperhake U, Tichy W Marronetti P, Ulrich Sperhake, Wolfgang Tichy   +16 more
core   +2 more sources