Results 91 to 100 of about 201,431 (246)

Exploring the Radiation Damage of Vacancy‐Ordered Double Perovskites, ((NH4)(1−x)FAx)2SnBr6

ChemPhysChem, EarlyView.
Incident X‐ray photons hν on a newly reported vacancy‐ordered double perovskite FA2SnBr6 results in damage of the compound. This is seen over increasing X‐ray dose using X‐ray photoelectron spectroscopy. Degradation studies of the ASnX3 perovskites to the A2SnX6 vacancy‐ordered double perovskite form have been well researched, but little is known about
Prajna Bhatt, Theo Stucky de Quay, Yuhan Liu, Tim Evans, Orfhlaith McCullough, Nathalie K. Fernando, Curran Kalha, Robert G. Palgrave, Anna Regoutz   +8 more
wiley   +1 more source

Superbubbles [PDF]

, 1981
Individual massive stars with M sub bol -6 have huge stellar winds that create interstellar bubbles. Stars with masses greater than 8 solar mass are considered supernova progenitors.
Bruweiler, F. C., Gull, T. R., Kafatos, M., Sofia, S.   +3 more
core   +2 more sources

Theoretical study of ionization profiles of molecular clouds near supernova remnants: Tracing the hadronic origin of GeV gamma radiation

, 2014
Context: Since a few years, signatures of supernova remnants associated with molecular clouds have been detected in gamma rays. Whether these gamma rays are generated by cosmic ray electrons or by cosmic ray protons is usually not known. The detection of
Röken, Christian, Schuppan, Florian, Tjus, Julia Becker   +2 more
core   +1 more source

Engineering a Stable Solid–Electrolyte Interphase through a Novel Trifluoromethyl‐Free Lithium Salt for Lithium Metal Polymer Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The motivation behind the development of the new lithium salt LiDFFSI is to combine the advantages of both LiFSI and LiDFSI salts. LiDFFSI offers high ionic conductivity and enhanced compatibility with aluminum current collectors. Additionally, it promotes the formation of a conductive SEI layer rich in LiF and LiH, which contributes to an extended ...
Lorena García, David Fraile‐Insagurbe, Izaskun Serna, Itziar Aldalur, Leire Meabe, Mikel Arrese‐Igor, Rosalía Cid, Julen Etxabe, Michel Armand, Maria Martinez‐Ibañez   +9 more
wiley   +1 more source

New Radio Observations of the Supernova Remnant CTA 1

The Astrophysical Journal
We present new radio images of the supernova remnant (SNR) CTA 1 at 1420 and 408 MHz, and in the 21 cm line of H i observed with the Dominion Radio Astrophysical Observatory Synthesis Telescope and at 1420 MHz observed with the Effelsberg 100 m telescope.
Tam Do, Roland Kothes, Alex S. Hill, Andrew Gray, Patricia Reich, Wolfgang Reich   +5 more
doaj   +1 more source

Cosmic ray acceleration in young supernova remnants [PDF]

, 2013
We investigate the appearance of magnetic field amplification resulting from a cosmic ray escape current in the context of supernova remnant shock waves. The current is inversely proportional to the maximum energy of cosmic rays, and is a strong function
K. Schure, A. Bell
semanticscholar   +1 more source

N‐Geranylated Amino Acid Surfactants with Low Critical Micelle Concentrations from Abundant, Naturally Derived Starting Materials

ChemistryOpen, EarlyView.
Cleaning Up Surfactants: Realising critical micelle concentrations lower than sodium dodecyl sulfate with sustainable surfactants prepared from amino acids and naturally occurring aldehydes. In this work, a simple method for the preparation of N‐alkylated amino acid surfactants in 1–2 steps is reported.
Brett L. Pollard, Yumeng Liu, Michael G. Gardiner, Luke A. Connal   +3 more
wiley   +1 more source

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

Signatures of pulsars in the light curves of newly formed supernova remnants [PDF]

, 2013
We explore the effect of pulsars, in particular those born with millisecond periods, on their surrounding supernova ejectas. While they spin down, fast-spinning pulsars release their tremendous rotational energy in the form of a relativistic magnetized ...
K. Kotera, E. Phinney, A. Olinto
semanticscholar   +1 more source

Synthesis, Characterization, and Energetic Performance of a New Copper Complex Based on 3,4,5‐Trinitro‐1H‐pyrazole

Propellants, Explosives, Pyrotechnics, EarlyView.
A new copper compound based on the trinitropyrazolate (TNP−) ligand ammonium copper(II) (tetrakis)trinitropyrazolate [(NH4+)2CuII(TNP−)4] has been prepared and structurally characterized, which displays different thermo‐chemical behaviour and sensitivity properties from the parent compound ammonium 3,4,5‐trinitropyrazolate. ABSTRACT The urgent need for
Ashfaq Afsar, Xiaojiao Liu, Patrick McMaster, Carole A. Morrison, Colin R. Pulham   +4 more
wiley   +1 more source