Results 41 to 50 of about 965 (178)
Invited review at the Frascati Workshop 2007, Vulcano, Italy, May 28 - June 2 on "Multifrequency Behaviour of High Energy Cosmic Sources". ChJAA, in press.
openaire +3 more sources
Muon induced neutron background in rare decay studies [PDF]
Understanding and mitigating background radiation is crucial for rare decay searches. It is also important for very low cross section measurements relevant to nuclear astrophysics.
Santhosh T. +3 more
doaj +1 more source
Abstract The 1962 Starfish Prime high‐altitude 1.4‐megaton nuclear detonation injected large amounts of fission‐produced energetic electrons into the inner magnetosphere (L = 1.12), creating an intense artificial radiation belt that persisted for years. In this study, we revisit historical data from this unprecedented event to investigate the potential
L. Olifer, I. R. Mann
wiley +1 more source
Identification of Extended Emission Gamma-Ray Burst Candidates Using Machine Learning
Gamma-ray bursts (GRBs) have been classified traditionally based on their duration. The increasing number of extended emission (EE) GRBs, lasting typically more than 2s but with properties similar to those of short GRBs, challenges the traditional ...
K. Garcia-Cifuentes +4 more
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Orbital Decay of the Three SNIPE CubeSats During the Super Geomagnetic Storm in May 2024
Abstract The Mother's Day (Gannon) geomagnetic superstorm of May 2024 produced extreme thermospheric heating and expansion, resulting in enhanced atmospheric drag on low Earth orbiting (LEO) satellites. We investigate storm‐time thermospheric drag and density variability using three satellites of the Small‐scale magNetospheric and Ionospheric Plasma ...
Hosub Song +8 more
wiley +1 more source
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez +8 more
wiley +1 more source
Gamma-ray emission of hot astrophysical plasma
11 pages, 10 ...
Kafexhiu, E., Aharonian, F., Barkov, M.
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HESS J1702-420 is a multi-TeV gamma-ray source with an unusual energy-dependent morphology. The recent H.E.S.S. observations suggest that the emission is well described by a combination of the point-like HESS J1702-420A (dominating at highest energies ...
Felix Aharonian +2 more
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Evidence of a local BCC‐type coordination of cobalt in FCC taenite of iron meteorites
Abstract Ni, Co, and Fe K‐edge X‐ray absorption fine structure (XAFS) measurements were performed, revealing an unexpected local structure around Co in well‐known iron and stony‐iron meteorites. Cobalt is enriched in kamacite but remains in taenite at concentrations of at least 0.3 atom%.
Kanako Yoshihara +5 more
wiley +1 more source
Premerger Phenomena in Neutron Star Binary Coalescences
A variety of high-energy events can take place in the seconds leading up to a binary neutron star merger. Mechanisms involving tidal resonances, electrodynamic interactions, or shocks in mass-loaded wakes have been proposed as instigators of these ...
Arthur G. Suvorov +2 more
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