Results 121 to 130 of about 131,026 (299)

Small-scale Magnetic Fields Are Critical to Shaping Solar Gamma-Ray Emission

The Astrophysical Journal
The Sun is a bright gamma-ray source due to hadronic cosmic-ray interactions with solar gas. While it is known that incoming cosmic rays must generally first be reflected by solar magnetic fields to produce outgoing gamma rays, theoretical models have ...
Jung-Tsung Li, John F. Beacom, Spencer Griffith, Annika H. G. Peter   +3 more
doaj   +1 more source

Gamma-ray bursts

22 pages, 6 figures.
openaire   +2 more sources

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Gamma Rays from Molecular Clouds [PDF]

, 2000
I discuss the spectral features of pi-0 decay gamma-radiation from clouds/targets located in proximity of relatively young proton accelerators, and speculate that such ``accelerator+target'' systems in our Galaxy can be responsible for a subset of ...
Aharonian, F. A.
core   +2 more sources

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Multiple Mixing Ratios of Gamma Rays

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
The -mixing of  - transition in Er 168 populated in  Er(n,n ) Er 168 168  reaction is calculated in the present work by using a2- ratio method.
T. A. Younis
doaj  

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling, Haoran Wang, Pan Yang, Rishav Agrawal, Alex R. Neale, Laurence J. Hardwick, Tom Hasell, Esther García‐Tuñón   +7 more
wiley   +1 more source

Multimessenger Emission by Magnetically Arrested Disks and Relativistic Jets of Black Hole X-Ray Binaries

The Astrophysical Journal
Black hole X-ray binaries (BHXBs) are observed in various wavelengths from radio to GeV gamma rays. Several BHXBs, including MAXI J1820+070 and Cygnus X-1, are also found to emit ultrahigh-energy (UHE; photon energy > 100 TeV) gamma rays.
Riku Kuze, Shigeo S. Kimura, Ke Fang
doaj   +1 more source

Search for long-term variability of HESS J1745-290

Astronomy & Astrophysics
At the center of our Galaxy lies the bright γ-ray point-like source HESS J1745-290, which is compatible in position with Sgr A⋆, although an association between the two remains uncertain.
Acharyya A., Aharonian F., Backes M., Batzofin R., Berge D., Bernlöhr K., Böttcher M., Boisson C., Bolmont J., Brun F., Bruno B., Burger-Scheidlin C., Bylund T., Celic J., Cerruti M., Chen A., Chernyakova M., Chibueze J. O., Chibueze O., Cornejo B., Cotter G., Mbarubucyeye J. Damascene, de Assis Scarpin J., de Bony de Lavergne M., de Naurois M., de Oña Wilhelmi E., Giler A. G. Delgado, Devin J., Djannati-Ataï A., Dmytriiev A., Egg K., Ernenwein J.-P., Nieves C. Escañuela, Fauverge P., Feijen K., Filipovic M. D., Fontaine G., Funk S., Gabici S., Glicenstein J. F., Glombitza J., Goswami P., Heckmann L., Hess B., Hinton J. A., Hofmann W., Holch T. L., Holler M., Horns D., Jamrozy M., Jankowsky F., Jaroschewski I., Jung-Richardt I., Kerszberg D., Khélifi B., Komin N., Kosack K., Kostunin D., Lang R. G., Lazarević S., Lemière A., Lemoine-Goumard M., Lenain J.-P., Liniewicz P., Mackey J., Malyshev D., Marandon V., Mayer M. G. F., Mehta A., Mitchell A. M. W., Moderski R., Mohrmann L., Montanari A., Niemiec J., Olivera-Nieto L., Moghadam M. O., Panny S., Parsons R. D., Pensec U., Pichard P., Preis T., Pühlhofer G., Punch M., Quirrenbach A., Reimer A., Reimer O., Reis I., Ren H. X., Reville B., Rieger F., Rowell G., Rudak B., Sabri K., Sahakian V., Santangelo A., Sasaki M., Schüssler F., Said W. Si, Sol H., Stawarz Ł., Tanaka T., Taylor G. L., Terrier R., Tsirou M., Unbehaun T., van Eldik C., Vecchi M., Venter C., Vink J., Voitsekhovskyi V., Wach T., Wagner S. J., Wierzcholska A., Zacharias M., Zech A., Zhong W., Zouari S.   +116 more
doaj   +1 more source