Results 71 to 80 of about 75,738 (243)

Phonons in Single‐Domain κ‐Ga2O3 Studied by Polarization Angle‐Resolved Raman Scattering

Advanced Electronic Materials, EarlyView.
Single‐domain κ‐Ga2O3 is systematically studied using advanced Raman spectroscopy, revealing over 100 Raman‐active phonon modes. These modes are compared with theoretical predictions and organized within a newly established nomenclature, offering a robust reference for future research.
Alwin Wüthrich, Benjamin M. Janzen, Roland Gillen, Hans Tornatzky, Andrea Ardenghi, Oliver Bierwagen, Anna Sacchi, Piero Mazzolini, Maximilian Ries, Temma Ogawa, Hiroyuki Nishinaka, Markus R. Wagner   +11 more
wiley   +1 more source

Section on Prospects for Dark Matter Detection of the White Paper on the Status and Future of Ground-Based TeV Gamma-Ray Astronomy

, 2008
This is a report on the findings of the dark matter science working group for the white paper on the status and future of TeV gamma-ray astronomy. The white paper was commissioned by the American Physical Society, and the full white paper can be found on
Baltz, EA, Bertone, G, Buckley, J, Byrum, K, Dingus, B, Fegan, S, Ferrer, F, FNAL, Gondolo, P, Hall, J, Hooper, D, Horan, D, Horan, D, Insti. d' Astrophysique, Koushiappas, S, Krawczynksi, H, LANL, LeBohec, S, Pohl, M, Profumo, S, Silk, J, Tait, T, Vassilev, V, Wakely, S, Wanger, R, Wood, M, Zaharijas, G   +26 more
core  

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, EarlyView.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

Dual‐Mode Thio‐MacMillan Organocatalysts: Stereoselective Diels–Alder Reactions or Sacrificial Self‐Cyclization to N‐Bridged Bicyclic Lactams

Chemistry – A European Journal, EarlyView.
The study of the Diels–Alder reaction of cinnamaldehyde and cyclopentadiene, catalyzed by chiral imidazolidine‐4‐thiones, led to the discovery of a highly regio‐ and stereoselective Michael‐addition and consecutive ring closure. Here, the imidazolidine‐4‐thione not only catalytically activates cinnamaldehyde but also participates as the nucleophile to ...
Marian S. R. Ebeling, Luca V. Parziale, Marc Sachsenhauser, Christoph J. B. Seifert, Nathalie J. Kurrle, Oliver Trapp   +5 more
wiley   +1 more source

Phosphorus‐Structured Gel Electrolytes Enable Dual Protection for Thermal Runaway‐Resistant Lithium Metal Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The PD‐VI GPE synthesized via in situ γ‐ray polymerization facilitates formation of a dense F/P‐rich SEI layer, enabling stable Li deposition while suppressing interfacial side reactions. The phosphorus‐containing framework enhances separator thermal stability and effectively mitigates O2 release from cathodes, demonstrating improved safety under the ...
Zeyu Zhang, Fan Jiang, Xibang Chen, Mingshu Xie, Sontong Zhang, Pengchen Zhao, Xiayu Zhu, Jintao Li, Jing Peng, Weibo Hua, Wenqi Huang, Jiuqiang Li, Xue Yang, Bin Liao, Le Yu, Maolin Zhai, Jingyi Qiu   +16 more
wiley   +1 more source

Multi-wavelength studies of the gamma-ray pulsar PSR J1907+0602

, 2012
PSR J1907+0602 is a radio-faint, 107-ms GeV gamma-ray pulsar that was discovered with the Fermi LAT in a blind pulsar search. PSR J1907+0602 is located near the bright, extended TeV gamma-ray source MGRO J1908+06 which may be an associated pulsar wind ...
Pandel, Dirk, Scott, Robert
core   +1 more source

Modular and Automated Workflow for Streamlined Raman Signal Analysis

Journal of Raman Spectroscopy, EarlyView.
This study presents an automated workflow for preprocessing and analyzing Raman spectroscopy data, addressing key challenges such as noise suppression, baseline correction, and peak fitting using Voigt profiles. The method is validated on both synthetic and experimental spectra, demonstrating improved spectral fidelity and peak detection for biomedical
Mykyta Kizilov, Vsevolod Cheburkanov, Joseph Harrington, Vladislav V. Yakovlev   +3 more
wiley   +1 more source

Impact of Device Architecture on Proton Detection Efficiency in 2D Perovskite Thick Film Detectors

Small, EarlyView.
This work shows the role of device architecture in MeV proton detection with 2D perovskite thick (> 1 µm) films. A direct comparison between planar and stacked devices demonstrates that the stacked geometry achieves superior response by enabling more efficient charge collection and better exploitation of the active layer volume, ensuring stable and ...
Giulia Napolitano, Sara Cepić, Ilaria Fratelli, Massimo Chiari, Beatrice Fraboni, Laura Basiricò   +5 more
wiley   +1 more source

Expectation for the Hard X-Ray and Gamma-Ray Emission from Pair-instability Supernovae

The Astrophysical Journal
Pair-instability supernovae (PISNe) are predicted thermonuclear explosions of massive stars with helium core masses exceeding ∼65 M _⊙ , and they synthesize substantial amounts of radioactive ^56 Ni ( M ( ^56 Ni) ∼ 60 M _⊙ in extreme cases).
Ryo Sawada
doaj   +1 more source

ESA INTEGRAL and Cataclysmic Variables

Odessa Astronomical Publications, 2017
The satellite INTEGRAL is ESA project operating since January 2003. It is dedicated to high energy astronomy. INTEGRAL is able to detect and perform astrometry, photometry and spectroscopy of sources from X-ray to gamma-ray regime (nominal range of ...
Jan Strobl, René Hudec, Vojtéch Simon, Filip Hroch, INTEGRAL CP CVs Working Group   +4 more
doaj   +1 more source