Results 41 to 50 of about 9,448 (220)
Practical Aspects of X-ray Imaging Polarimetry of Supernova Remnants and Other Extended Sources
Galaxies, 2018 The new generation of X-ray polarisation detectors, the gas pixel detectors, which will be employed by the future space missions IXPE and eXTP, allows for spatially resolved X-ray polarisation studies.
Jacco Vink, Ping Zhou
doaj +1 more source
The Astrophysical Journal, 2023 We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years.
John Banovetz +10 more
doaj +1 more source
Free‐Standing Supramolecular Pyridine N‐Oxide‐Silver(I) Metallogels
Advanced Materials, EarlyView.A comprehensive analysis of pyridine N‐oxide‐silver(I) trifluoroacetate complexes reveals remarkable mechanical strengths that enable the creation of free‐standing objects with shape control, reaching dimensions of up to centimeters and shedding new insights into the gelation mechanisms.
Rakesh Puttreddy +8 more
wiley +1 more source
Advanced Synthesis &Catalysis, EarlyView.In the presence of a Pd0 catalyst, large π‐extended arynes trimerize in an unusual manner to forge extremely compact and strained chiral benzenoids. This new trimerization reaction involves a 1,7‐Pd isomerization, a rare and poorly understood process that is elucidated.
Albert Artigas +6 more
wiley +1 more source
A Supramolecular Material for Controlling Kiwifruit Bacterial Canker
Advanced Science, EarlyView.The matrine‐5‐methylsalicylic acid salt (MOS) is reported for its excellent antibacterial activity against Pseudomonas syringae pv. actinidiae (Psa), with advanced cell membrane penetration ability and strong affinities for potential targets. Furthermore, a nanosupramolecular delivery system MOS@hydroxypropyl‐beta‐cyclodextrin (HPCD) with improved ...
Xile Deng +9 more
wiley +1 more source
Reacceleration of electrons in supernova remnants [PDF]
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2015 A&A submitted, version revised as per referee ...
Pohl, Manuela +2 more
openaire +7 more sources
Proton Acceleration with Relativistic Electromagnetic Shock
Advanced Science, EarlyView.New Ion Acceleration Mechanism! A novel cosmic‐ray proton acceleration mechanism is proposed, where relativistic electromagnetic shocks accelerate protons transversely. Hamiltonian analysis yields a scaling law linking the proton energy to the minimum longitudinal thickness of the shock.
Ting Xiao +5 more
wiley +1 more source
Three-dimensional Velocity Diagnostics to Constrain the Type Ia Origin of Tycho's Supernova Remnant
The Astrophysical JournalWhile various methods have been proposed to disentangle the progenitor system for Type Ia supernovae, their origin is still unclear. A circumstellar environment is key to distinguishing between the double-degenerate and single-degenerate (SD) scenarios ...
Hiroyuki Uchida +5 more
doaj +1 more source
Multifrequency observations of one of the largest supernova remnants in the local group of galaxies, LMC - SNR J0450-709 [PDF]
Serbian Astronomical Journal, 2009 We present the results of new Australia Telescope Compact Array (ATCA) observations of one of the largest supernova remnants, SNR J0450-709, in the Local Group of galaxies.
Čajko K.O. +2 more
doaj +1 more source
Organocatalytic C─O Bond Cleavage and Asymmetric Transformations via [1,3]‐Sigmatropic Rearrangement
Advanced Science, EarlyView.A direct asymmetric strategy for fulfilling the functional group transfer by aryl ether cleavage and migration is developed, representing the first Brønsted base‐catalyzed asymmetric [1,3]‐sigmatropic rearrangement reaction. The resulting chiral benzofuran products generated through this strategy exhibit significant 3D‐dimensionality and demonstrate ...
Lei Peng +7 more
wiley +1 more source