Results 131 to 140 of about 63,717 (334)

MERGERS OF STELLAR-MASS BLACK HOLES IN NUCLEAR STAR CLUSTERS [PDF]

, 2009
M. Coleman Miller, Vanessa M. Lauburg
openalex   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

Covariance Spectrum of MAXI J1820+070: On the Nature of the Comptonizing Flow

The Astrophysical Journal
We present an analysis of the covariance spectrum of the black hole X-ray binary MAXI J1820+070 during its hard state. For the first time, we extend coherence and covariance studies into the hard X-ray band up to ∼150 keV.
Shuai-Kang Yang, Bei You, Niek Bollemeijer, Phil Uttley, A. J. Tetarenko, Andrzej A. Zdziarski, Liang Chen, P. Casella, J. A. Paice, Yang Bai, Sai-En Xu   +10 more
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Highly Coherent Quasiperiodic Oscillations in the “Heartbeat” Black Hole X-Ray Binary IGR J17091–3624

The Astrophysical Journal
IGR J17091–3624 is a black hole X-ray binary (BHXB), often referred to as the “twin” of GRS 1915+105 because it is the only other known BHXB that can show exotic “heartbeat”-like variability that is highly structured and repeated.
Jingyi Wang, Erin Kara, Jeroen Homan, James F. Steiner, Diego Altamirano, Tomaso Belloni, Michiel van der Klis, Adam Ingram, Javier A. García, Guglielmo Mastroserio, Riley Connors, Matteo Lucchini, Thomas Dauser, Joseph Neilsen, Collin Lewin, Ron A. Remillard   +15 more
doaj   +1 more source

Tidal disruption flares from stars on eccentric orbits

EPJ Web of Conferences, 2012
We study tidal disruption and subsequent mass fallback for stars approaching supermassive black holes on bound orbits, by performing three dimensional Smoothed Particle Hydrodynamics simulations with a pseudo-Newtonian potential.
Loeb A., Stone N., Hayasaki K.
doaj   +1 more source

Relationship of Black Holes to Bulges [PDF]

, 2001
Supermassive black holes appear to be uniquely associated with galactic bulges. The mean ratio of black hole mass to bulge mass was until recently very uncertain, with ground based, stellar kinematical data giving a value roughly an order of magnitude ...
Ferrarese, Laura, Merritt, David
core   +1 more source

MOCCA Survey Database I: Dissolution of tidally filling star clusters harbouring BH subsystems

, 2019
We investigate the dissolution process for dynamically evolving star clusters embedded in an external tidal field by exploring the MOCCA Survey Database I, with focus on the presence and evolution of a stellar-mass black hole subsystem. We argue that the
Askar, Abbas, Giersz, Mirek, Hypki, Arkadiusz, Leveque, Agostino, Spurzem, Rainer, Wang, Long   +5 more
core   +2 more sources

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

The Redshift Evolution of the M •–M ⋆ Relation for JWST’s Supermassive Black Holes at z > 4

The Astrophysical Journal
JWST has detected many overmassive galactic systems at z > 4, where the mass of the black hole, M _• , is 10–100 times larger than expected from local relations, given the host’s stellar mass, M _⋆ .
Fabio Pacucci, Abraham Loeb
doaj   +1 more source