Results 51 to 60 of about 9,517 (211)

Supernova Remnants in Gamma Rays

Universe
In the 1960s, the remnants of supernova explosions (SNRs) were indicated as a possible source of galactic cosmic rays through the Diffusive Shock Acceleration (DSA) mechanism.
Andrea Giuliani, Martina Cardillo
doaj   +1 more source

Hamas's October 7 Attack: Analysis of an “Antagonistic” Crisis

Public Administration Review, Volume 86, Issue 1, Page 87-96, January/February 2026.
ABSTRACT The aim of the article is to interpret the Hamas attack of October 7, 2023 in light of crisis management theories, seeking to draw from this event some general lessons about the nature of crises, their determinants, and how they are managed. More specifically, the article addresses three questions: (1) Why did Israel underestimate the warning ...
Federico Toth
wiley   +1 more source

Testing the Weak Cosmic Censorship Conjecture via Test Particle–Induced Overcharging/Overspinning of Kerr–Newman–Modified Gravity Black Hole

Advances in Astronomy, Volume 2026, Issue 1, 2026.
We examine the weak cosmic censorship conjecture (WCCC) violation by throwing a charged and rotating test particle into a Kerr–Newman–modified gravity black hole (KN–MOG BH). The result depends on several factors, such as the relative sign of the particle’s charge and its direction of rotation with respect to black hole (BH).
Waqar Ahmad, Abdul Rehman Kashif, Jose Gaite   +2 more
wiley   +1 more source

Synthesis and Characterization of [MF5(terpy)]+ (M = Mo, W) Salts: Autoionization of MF6 Induced by a Tridentate Ligand

Chemistry – A European Journal, Volume 31, Issue 72, December 23, 2025.
The hexafluorides MoF6 and WF6 autoionize in the presence of the tridentate terpyridine ligand, yielding [MF5(terpy)]+[MF7]– (M = Mo, W). The octacoordinated [MF5(terpy)]+ cations adopt bicapped trigonal prismatic geometries. The [WF7]– can be substituted for [SbF6]– using SbF5SO2, whereas the reaction was unsuccessful for displacing the [MoF7]– anion.
Miriam D. van Hoeve, Taylor P. K. Adamitz, Felix O'Donnell, Stacey D. Wetmore, Michael Gerken   +4 more
wiley   +1 more source

High-resolution Spectra of Supernova Remnants in M83

The Astrophysical Journal, 2023
In order to better characterize the rich supernova remnant (SNR) population of M83 (NGC 5236), we have obtained high-resolution (∼85 km s ^−1 ) spectra of 119 of the SNRs and SNR candidates in M83 with Gemini/GMOS, as well as new spectra of the young ...
P. Frank Winkler, Knox S. Long, William P. Blair, Sean D. Points   +3 more
doaj   +1 more source

Ortho‐Carborane‐Derived Halogen‐Bonded Sandwich Complexes

Chemistry – A European Journal, Volume 31, Issue 71, December 17, 2025.
A systematic co‐crystallization‐study of a tridentate ortho‐carborane‐based halogen‐bond donor with halides was performed. Several association complexes are evaluated to give further insights into the halogen bond‐strength of this moiety. For iodide, rare octahedral coordination via a sandwich‐like complexation was observed in the solid state when ...
Christoph J. Vonnemann, Elric Engelage, Jas S. Ward, Kari Rissanen, Stefan M. Huber   +4 more
wiley   +1 more source

Trigonal Bipyramidal Clusters [Tl5]7−: Synthesis and Characterization of the Zintl Phase K7−xAxTl5 (A = Rb, Cs; 0 < x ≤ 2.35)

Chemistry – A European Journal, Volume 31, Issue 70, December 12, 2025.
Mixed alkali metals, potassium and additional rubidium or cesium, allow for the synthesis of a straightforward, electron‐precise Zintl phase K7−xAxTl5. The new phase is characterized by SCXRD, PXRD, and DFT. Its metastability is proven by DSC measurements.
Vanessa F. Schwinghammer, Tomáš Kovářík, Ilya G. Shenderovich, Ján Minár, Stefanie Gärtner   +4 more
wiley   +1 more source

OBSERVATIONS OF NON TYPICAL MASERS AT THE RT-22 RADIO TELESCOPE IN 2004–2013

Radio Physics and Radio Astronomy, 2017
Purpose: Some peculiarities of emission of Class I methanol masers on the 80–71A+ transition at 95 GHz in sources closely associated with protostar-forming regions and in supernova remnants are studied.
V. M. Shulga, O. V. Antyufeyev, S. Y. Zubrin, V. V. Myshenko, V. I. Piddyachiy, A. M. Korolev, O. M. Patoka   +6 more
doaj   +1 more source

The Black Hole Candidate Swift J1728.9$-$3613 and the Supernova Remnant G351.9$-$0.9 [PDF]

, 2023
M. Balakrishnan, Paul A. Draghis, J. M. Mïller, Joe Bright, R. P. Fender, Mason Ng, Edward M. Cackett, A. C. Fabian, K. D. Küntz, J. C. A. Miller‐Jones, Daniel Proga, Paul S. Ray, J. C. Raymond, Mark Reynolds, Abderahmen Zoghbi   +14 more
openalex   +1 more source

Surface‐Mounted Metal‐Organic Framework for the Adsorption and Sensing of Monoaromatic Pollutants in Water Using Quartz Crystal Microbalance

Advanced Materials Technologies, Volume 10, Issue 23, December 3, 2025.
A hydrophobic metal‐organic framework (UHMOF‐100) is grown on a quartz crystal microbalance sensor for the first time. The device enables real‐time, selective detection of monoaromatic BTEX pollutants in water, demonstrating a new strategy for creating robust chemical sensors for challenging environmental monitoring applications. Abstract Environmental
Per Reichert, Jaskaran Singh Malhotra, Deepthy Krishnan, Sinem Evli, Srihari Yamunan, Clara Dávila Duarte, Mariusz Kubus, Jonas Sundberg   +7 more
wiley   +1 more source