Results 91 to 100 of about 113,730 (333)

MOXE: An X-ray all-sky monitor for Soviet Spectrum-X-Gamma Mission [PDF]

, 1989
A Monitoring Monitoring X-Ray Equipment (MOXE) is being developed for the Soviet Spectrum-X-Gamma Mission. MOXE is an X-ray all-sky monitor based on array of pinhole cameras, to be provided via a collaboration between Goddard Space Flight Center and Los ...
Fenimore, E. E., Holt, S. S., Kelley, R. L., Moss, C. E., Priedhorsky, W.   +4 more
core   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Spectral Hardening Reveals Afterglow Emergence in Long-duration Fast X-Ray Transients: A Case Study of GRB 250404A/EP250404a

The Astrophysical Journal Letters
The prompt emission and afterglow phases of gamma-ray bursts (GRBs) have been extensively studied, yet the transition between these two phases remains inadequately characterized due to limited multiwavelength observational coverage.
Yi-Han Iris Yin, Yuan Fang, Bin-Bin Zhang, Chen Deng, Jun Yang, Run-Chao Chen, Yuan Liu, Yehao Cheng, Dong Xu, Xiaofeng Wang, Rongfeng Shen, Rui-Zhi Li, Jirong Mao, Wen-Xiong Li, Alberto Javier Castro-Tirado, Weihua Lei, Shao-Yu Fu, Yuan-Pei Yang, Shuai-Qing Jiang, Jie An, Chun Chen, Zhong-Nan Dong, Guowang Du, Ali Esamdin, Zhou Fan, Haicheng Feng, Lu Feng, Emilio Fernández-García, Xing Gao, Maria Gritsevich, Wei-Jian Guo, Jingwei Hu, You-Dong Hu, Yanlong Hua, Abdusamatjan Iskandar, Junjie Jin, Niu Li, Xia Li, Ziwei Li, Jia-Qi Lin, Dezi Liu, Jinzhong Liu, Qichun Liu, Xiaowei Liu, Xing Liu, Daniele B. Malesani, Ignacio Pérez-García, Hui Sun, Xue-Feng Wu, Yun-Ao Xiao, Ding-Rong Xiong, Shengyu Yan, Beibei Zhang, Jinghua Zhang, Haichang Zhu, Zipei Zhu, Hu Zou, Weimin Yuan, Bing Zhang   +58 more
doaj   +1 more source

Gamma-Ray Bursts and Hypernova Explosions of Some Galactic Sources [PDF]

, 2007
Knowing the Kerr parameters, we can make quantitative calculations of the rotational energy of black holes. We show that Nova Sco, Il Lupi, XTE J1550-564, and GS 2023+338 are relics of gamma-ray bursts (GRBs) and hypernova explosions.
G. E. Brown, C. -. Lee, Enrique Moreno Méndez   +2 more
semanticscholar   +1 more source

Symmetry Enhanced Unconventional Spin Current Anisotropy in a Collinear Antiferromagnet

Advanced Functional Materials, EarlyView.
Spin‐orbit torques (SOTs) are investigated in epitaxial FeSn, a topological antiferromagnet with kagome lattice symmetry. Combining experimental and theoretical approaches, the study identifies a six‐fold conventional damping‐like spin‐orbit torque (DL SOT), along with the coexistence of both six‐fold and uniaxial unconventional field‐like torque (FL ...
Pankhuri Gupta, Kacho Imtiyaz Ali Khan, Akash Kumar, Pratik Sahu, Rekha Agarwal, Artem Litvinenko, Nidhi Kandwal, Ram Singh Yadav, Birabar Ranjit Kumar Nanda, Johan Åkerman, Pranaba Kishor Muduli   +10 more
wiley   +1 more source

The Radio Counterpart to the Fast X-Ray Transient EP240414a

The Astrophysical Journal
Despite being operational for only a short time, the Einstein Probe mission, with its large field of view and rapid localization capabilities, has already significantly advanced the study of rapid variability in the soft X-ray sky.
Joe S. Bright, Francesco Carotenuto, Rob Fender, Carmen Choza, Andrew Mummery, Peter G. Jonker, Stephen J. Smartt, David R. DeBoer, Wael Farah, James Matthews, Alexander W. Pollak, Lauren Rhodes, Andrew Siemion   +12 more
doaj   +1 more source

A Universal Way to Manipulate Droplet via Light‐Fueled Thermocapillary Convection

Advanced Functional Materials, EarlyView.
A non‐contact light‐induced droplet manipulation strategy fueled by mid‐infrared (MIR) light irradiation is introduced. No additional additives and/or complex substrate are required. Here, thermocapillary convection, directly generated by temperature gradient at outer surface of droplet via localized surface heating, plays a key role to propel the ...
Hyesun Hwang, Yinggang Zhao, Kun Li, Jaeseung Lee, Cunjing Lv, Sanghyuk Wooh   +5 more
wiley   +1 more source

A Unified Model of Kilonovae and Gamma-Ray Bursts in Binary Mergers Establishes Neutron Stars as the Central Engines of Short GRBs

The Astrophysical Journal
We expand the theoretical framework by O. Gottlieb et al., which connects binary merger populations with long and short binary gamma-ray bursts (lbGRBs and sbGRBs, respectively), incorporating kilonovae (KNe) as a key diagnostic tool. We show that lbGRBs,
Ore Gottlieb, Brian D. Metzger, Francois Foucart, Enrico Ramirez-Ruiz   +3 more
doaj   +1 more source

High-Energy Emission Induced by Ultra-High-Energy Photons as a Probe of Ultra-High-Energy Cosmic-Ray Accelerators Embedded in the Cosmic Web

, 2011
The photomeson production in ultra-high-energy cosmic-ray (UHECR) accelerators such as gamma-ray bursts and active galaxies may lead to ultra-high-energy (UHE) gamma-ray emission.
Murase, Kohta
core   +1 more source

Understanding Postdeposition Treatments of Hole‐Transporting Self‐Assembling Molecules for Perovskite/Silicon Tandem Solar Cells

Advanced Functional Materials, EarlyView.
The influence of postdeposition treatments on the formation of self‐assembling (mono)layers commonly utilized as hole transport layers in perovskite‐based solar cells is thoroughly investigated. The implementation of a washing step and an annealing step at temperatures exceeding the current literature standards leads to an enhanced layer quality and ...
Jann B. Landgraf, Yashika Gupta, Adi Prasetio, Stefan Lange, Christoph Messmer, Christian Schwarz, Oliver Fischer, Sithisak Chanthalavong, Oussama Er‐raji, María B. Camarada, Stefaan De Wolf, Patricia S. C. Schulze, Anna Fischer, Stefan W. Glunz, Juliane Borchert   +14 more
wiley   +1 more source