Results 171 to 180 of about 237,520 (386)

Bright Monocompound Metal Halide Scintillator for Fast Neutron Radiography

Advanced Functional Materials, EarlyView.
Metal halide scintillator, tetraphenylphosphonium manganese bromide (TPP2MnBr4), provides a significant benefit for fast neutron imaging. A fourfold increase in efficiency over traditional zinc sulfide screens is achieved by efficiently utilizing neutron interactions within its homogeneous structure.
Aditya Bhardwaj, Kostiantyn Sakhatskyi, Anastasiia Sakhatska, Pavel Trtik, Ye Wu, Yevhenii Padniuk, Yuliia Kominko, Kai Han, Vladyslav Orlov, Markus Strobl, Andrey L. Rogach, Zhiguo Xia, Sergii Yakunin, Maksym V. Kovalenko   +13 more
wiley   +1 more source

Intermediate-mass Black Hole Progenitors from Stellar Collisions in Dense Star Clusters

The Astrophysical Journal
Very massive stars (VMSs) formed via a sequence of stellar collisions in dense star clusters have been proposed as the progenitors of massive black hole seeds.
Elena González Prieto, Newlin C. Weatherford, Giacomo Fragione, Kyle Kremer, Frederic A. Rasio   +4 more
doaj   +1 more source

Another Intermediate‐Mass Black Hole in a Starburst Galaxy? The Luminous X‐Ray Source in NGC 3628 Reappears [PDF]

, 2001
David Strickland, E. J. M. Colbert, Timothy M. Heckman, K. A. Weaver, Michael Dahlem, I. R. Stevens   +5 more
openalex   +1 more source

Additive‐Driven Phase Control for Stable and Efficient CsPbI₃ Solar Cells Via Ambient Low‐Temperature Processing

Advanced Functional Materials, EarlyView.
CsPbI₃ perovskite solar cells face stability issues due to high annealing temperatures and moisture. Butylammonium acetate (BAAc) enables stable phase formation at 160°C in ambient laboratory conditions, enhancing efficiency and stability, achieving 18.6% PCE, and maintaining over 81% efficiency after 1,000 hours of maximum power point tracking under 1
Narendra Pai, Aaron Seeber, Wen Liang Tan, Luke J. Sutherland, Chris Easton, Wenqi Yan, Yogesh Gulia, Yesim Gozukara, Jueng‐Eun Kim, Mei Gao, Dechan Angmo   +10 more
wiley   +1 more source

Intermediate Mass Ratio Inspirals in Milky Way Galaxies

The Astrophysical Journal
A consequence of a nonzero occupation fraction of massive black holes (MBHs) in dwarf galaxies is that these MBHs can become residents of larger galaxy halos via hierarchical merging and tidal stripping.
Jillian Bellovary, Yuantong Luo, Thomas R. Quinn, Ferah Munshi, Michael Tremmel, James Wadsley   +5 more
doaj   +1 more source

Inner radius and energy conditions of dark matter halos surrounding Schwarzschild black holes

Physics Letters B
We study a class of analytic models for a dark matter halo surrounding a Schwarzschild black hole sitting at the center of a galaxy, with a variable inner radius rin at which the density profile of the dark matter halo vanishes.
Zibo Shen, Anzhong Wang, Shaoyu Yin
doaj   +1 more source

The stars of the galactic center

, 2005
We consider the origin of the so-called S stars orbiting the supermassive black hole at the very center of the Galaxy. These are usually assumed to be massive main-sequence stars.
Andrew King, Eckart A., Melvyn B. Davies
core   +2 more sources

The Runaway Growth of Intermediate‐Mass Black Holes in Dense Star Clusters [PDF]

, 2002
Simon Portegies Zwart, Stephen L. W. McMillan   +1 more
openalex   +1 more source

Tailored Reconstruction of Polycrystalline CuO Nanorods Promotes C─C Coupling in CO2 Electroreduction

Advanced Functional Materials, EarlyView.
Controlling the polycrystallinity of CuO nanorods enables directional reconstruction into rod‐like structures that stabilize Cu(OH)2 and increase Cu+ ratios, while modulating interfacial water dynamics to enhance C─C coupling and boost C2+ product formation in CO2 electroreduction.
Hyeon‐Seok Bang, Young‐Jin Ko, Hyo Sang Jeon, Eugene Huh, Eung Dab Kim, Min Gwan Ha, Chulwan Lim, Jiho Jeon, Seohyeon Ka, Dogyeong Kim, Xiaojie Zhang, Yeongjin Kim, Kyeongsu Kim, Woong Hee Lee, Jae‐Young Choi, Hyung‐Suk Oh   +15 more
wiley   +1 more source

Thermodynamics of Asymptotically Flat Charged Black Holes in Third Order Lovelock Gravity

, 2005
We present a new class of asymptotically flat charge static solutions in third order Lovelock gravity. These solutions present black hole solutions with two inner and outer event horizons, extreme black holes or naked singularities provided the ...
D. Lust, J. Polchinski, M. H. Dehghani, M. Shamirzaie, M. B. Greens   +4 more
core   +1 more source