Results 51 to 60 of about 5,905 (257)

The Formation of Hard Very High Energy Spectra from Gamma-ray Burst Afterglows via Two-zone Synchrotron Self-Compton Emission

The Astrophysical Journal, 2023
Electron Compton scattering of target photons into the gamma-ray energy band (inverse Compton scattering; IC) is commonly expected to dominate the very high energy (VHE) spectra in gamma-ray bursts (GRBs) especially during the afterglow phase.
Dmitry Khangulyan, Andrew M. Taylor, Felix Aharonian   +2 more
doaj   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

The Nature of Optical Afterglows without Gamma-Ray Bursts: Identification of AT2023lcr and Multiwavelength Modeling

The Astrophysical Journal
In the past few years, the improved sensitivity and cadence of wide-field optical surveys have enabled the discovery of several afterglows without associated detected gamma-ray bursts (GRBs).
Maggie L. Li, Anna Y. Q. Ho, Geoffrey Ryan, Daniel A. Perley, Gavin P. Lamb, Nayana A.J., Igor Andreoni, G. C. Anupama, Eric C. Bellm, Edo Berger, Joshua S. Bloom, Eric Burns, Ilaria Caiazzo, Poonam Chandra, Michael W. Coughlin, Kareem El-Badry, Matthew J. Graham, Mansi Kasliwal, Garrett K. Keating, S. R. Kulkarni, Harsh Kumar, Frank J. Masci, Richard A. Perley, Josiah Purdum, Ramprasad Rao, Antonio C. Rodriguez, Ben Rusholme, Nikhil Sarin, Jesper Sollerman, Gokul P. Srinivasaragavan, Vishwajeet Swain, Zachary Vanderbosch   +31 more
doaj   +1 more source

Single‐Step Recovery of Water from Stable Crude Oil‐Water Emulsion Using Surface Engineered Hybrid Inorganic‐Polymer Membranes

Advanced Functional Materials, EarlyView.
Atomic layer deposition is used to conformally surface engineer polymeric membranes to fabricate inorganic–organic hybrid membranes. These membranes have exceptionally strong attraction toward water even in high oil containing emulsions, which leads to an extremely strong hydration layer at the interface.
Bratin Sengupta, Yining Liu, Gaurab Sarkar, Rouke Cai, Katrina Sparks, Chi Thang Nguyen, Tamar Segal‐Peretz, Seth B. Darling, Jeffrey W. Elam   +8 more
wiley   +1 more source

Triggering the Untriggered: The First Einstein Probe-detected Gamma-Ray Burst 240219A and Its Implications

The Astrophysical Journal Letters
The Einstein Probe (EP) achieved its first detection and localization of a bright X-ray flare, EP240219a, on 2024 February 19, during its commissioning phase.
Yi-Han Iris Yin, Bin-Bin Zhang, Jun Yang, Hui Sun, Chen Zhang, Yi-Xuan Shao, You-Dong Hu, Zi-Pei Zhu, Dong Xu, Li An, He Gao, Xue-Feng Wu, Bing Zhang, Alberto Javier Castro-Tirado, Shashi B. Pandey, Arne Rau, Weihua Lei, Wei Xie, Giancarlo Ghirlanda, Luigi Piro, Paul O’Brien, Eleonora Troja, Peter Jonker, Yun-Wei Yu, Jie An, Run-Chao Chen, Yi-Jing Chen, Xiao-Fei Dong, Rob Eyles-Ferris, Zhou Fan, Shao-Yu Fu, Johan P. U. Fynbo, Xing Gao, Yong-Feng Huang, Shuai-Qing Jiang, Ya-Hui Jiang, Yashaswi Julakanti, Erik Kuulkers, Qing-Hui Lao, Dongyue Li, Zhi-Xing Ling, Xing Liu, Yuan Liu, Jia-Yu Mou, Xin Pan, Varun, Daming Wei, Qinyu Wu, Muskan Yadav, Yu-Han Yang, Weimin Yuan, Shuang-Nan Zhang   +51 more
doaj   +1 more source

A Search for Gamma-Ray Emission from Variable or Transient Galactic Radio Sources

, 2013
2012 Fermi Symposium proceedings - eConf ...
Shrader, C. R., Macomb, D. J.
openaire   +2 more sources

Advancements in Hypersaline Wastewater Treatment: The Promise of Quasi‐Liquid Surfaces to Reduce Salt Scaling

Advanced Functional Materials, EarlyView.
Durable quasi‐liquid polymer brush surfaces provide an anti‐scaling strategy for hypersaline brine evaporation and zero‐liquid‐discharge desalination. The smooth, liquid‐like QLS interface suppresses substrate‐side salt nucleation, promotes compact crystallization and dewetting, reduces crystal–surface contact area, and enables low‐adhesion salt ...
Mohammed Imran Khan, Bei Fan
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

Mechanically Mutable Matrices: A Hierarchical Investigation of Decellularized Sea Cucumber Collagen as an Adaptable Scaffold Material

Advanced Functional Materials, EarlyView.
Sea cucumber mutable collagenous tissue (MCT) is a remarkable collagen‐based material which can rapidly undergo large changes in stiffness through transiently bound effector proteins. Here, we investigate the hierarchical structure and mechanical response of MCT from Cucumaria frondosa across length scales with a wide range of methods, also exploring ...
Nathalie R. H. Singh, Amy K. Lin, Sabra Rostami, Cameron Hastie, Paul W. Wiseman, Patrick Flammang, Christopher Moraes, Matthew J. Harrington   +7 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