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101
Extended Linear and Nonlinear Lorentz Transformations and Superluminality
Published 2013-01-01“…Particle energies are evaluated in this scenario at c for several particles, including the neutrinos, and are auspiciously found to be below the GKZ energy cutoff and in compliance with a host of worldwide ultrahigh energy cosmic ray data. Section 3 presents two broad scenarios involving a number of novel nonlinear LTs (NLTs) featuring small Lorentz invariance violations (LIVs), as well as resurrecting the notion of simultaneity for limited spacetime events as perceived by two observers in URM. …”
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102
The interplay of geology, climate and tectonics on river incision: the example of the High Verdon Gorges, Southwestern French Alps
Published 2023-07-01“…We collected 24 samples along three polished surfaces for Cosmic Ray Exposure (CRE) $^{36}$Cl dating, which allowed us to constrain short-term incision rates ranging from 0.06 to 0.2 mm/yr between 60 and 15 ka. …”
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103
Mean arrival time distributions of extensive air showers at ultrahigh energies
Published 2024-12-01“…This paper investigates extensive air showers by estimating the muon and electron mean arrival time distributions at ultrahigh energies for various cosmic-ray particles. The Monte Carlo package AIRES (version 19.04.00) was used to perform simulations at energies of 1019 and 1020 eV. …”
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104
Tracing ancient solar cycles with tree rings and radiocarbon in the first millennium BCE
Published 2025-01-01“…To extend this timeline, cosmic ray-produced radionuclides like 14C in tree-rings provide invaluable insights. …”
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105
Nanoscale characterization of space weathering in lunar samples
Published 2025-01-01“…Spatially localized 1050 cm−1/935 cm−1 band ratios in Nano-FTIR hyperspectral maps may further reflect impact-induced shock nanostructures, while shifts in silicate band positions indicate accumulated radiation damage at the nanoscale from prolonged space weathering due to micrometeorites, solar wind, energetic x-rays and cosmic ray bombardment. Our observations demonstrate that space weathering alterations of the surface of lunar samples at the nanoscale may provide a mechanism to distinguish lunar samples of variable surface exposure age.…”
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106
Historical Reconstruction of Astronaut Cancer Risk: Context for Recent Solar Minima
Published 2021-10-01“…Abstract As NASA prepares for longer duration missions beyond the geomagnetic field, the possibility of intensifying galactic cosmic ray (GCR) exposure raises possible concerns for mission planning and crew health and safety. …”
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107
A New Model for Nowcasting the Aviation Radiation Environment With Comparisons to In Situ Measurements During GLEs
Published 2022-08-01“…Under the UK Space Weather Instrumentation, Measurement, Modeling and Risk programme, we have developed a new model to provide nowcasts of the aviation radiation environment, including both the galactic cosmic ray (GCR) background and during GLE events. The Model for Atmospheric Ionising Radiation Effects (MAIRE+) uses multiple data sources to characterize primary GCR and GLE particle spectra and combines these with precalculated geomagnetic and atmospheric response matrices to predict particle fluxes from ground level to 20 km altitude across the entire globe. …”
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108
Intelligent methods for natural data analysis: application to space weather
Published 2024-02-01“…The efficiency of network sharing an Autoencoder with adaptive wavelet threshold filtering is shown in the problem of anomaly detection in cosmic ray flux intensity data.…”
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109
Study of the Impact of Past Extreme Solar Events on the Modern Air Traffic
Published 2021-04-01“…Abstract The ancient solar energetic particle (SEP) events of 774/775 CE and 993/994 CE were characterized thanks to radionuclide productions stored in environmental archives as ice cores or tree rings. Primary cosmic ray spectra deduced from these cosmogenic isotope data indicate that the impact of these extreme SEP events would have been much more significant than any of the ones observed during the modern era. …”
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110
Improving H2RG Performance in SPHEREx Brassboard Model
Published 2025-01-01“…The instrument implements HAWAII-2RG (H2RG) detectors and custom-built Video8 electronics with multiple sampling features to optimize the H2RG noise performance, including nonsequential row reads, voltage monitoring, multiple visits to optically dark reference pixels, as well as onboard slope fitting and cosmic-ray removal. We report here the performance of a single H2RG with the readout electronics. …”
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111
The Mother's Day Geomagnetic Storm on 10 May 2024: Aurora Observations and Low Latitude Space Weather Effects in Mexico
Published 2024-11-01“…Citizen science efforts documented auroras and regional responses, capturing variations in geomagnetic indices, ionospheric disturbances, cosmic ray fluxes, GICs, and technological impacts. …”
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112
Very High Energy Solar Energetic Particle Events and Ground Level Enhancement Events: Forecasting and Alerts
Published 2024-09-01“…GLE Alert++ is a product, built by the Athens Cosmic Ray Group of the National and Kapodistrian University of Athens, that issues alerts when a GLE event starts to register and is based on ground‐based neutron monitor observations. …”
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113
Revisiting ice-marginal positions north-east of Feldberg, southern Black Forest, south-west Germany
Published 2025-01-01“…Determination of the age of glacial landforms with the aid of cosmic-ray exposure (CRE) dating and luminescence methods will allow for the establishment of an integrated regional stratigraphical model. …”
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114
Spherical Accretion in the Schwarzschild Spacetime in the Newtonian Analogous Construct
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115
Observing Supernova Neutrino Light Curves with Super-Kamiokande. V. Distance Estimation with Neutrinos
Published 2025-01-01Get full text
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116
Monster Radio Jet (>66 kpc) Observed in Quasar at z ∼ 5
Published 2025-01-01Get full text
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117
MAMMOTH-Subaru. II. Diverse Populations of Circumgalactic Lyα Nebulae at Cosmic Noon
Published 2024-01-01Get full text
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