Results 91 to 100 of about 29,691 (229)

SuperCam Raman Activities at Jezero Crater, Mars: Observational Strategies, Data Processing, and Mineral Detections During the First 1000 Sols

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract The Mars 2020 Perseverance rover introduced Raman spectroscopy to in situ planetary exploration for the first time when it landed in Jezero crater on Mars in February 2021. The SuperCam instrument onboard Perseverance is a multi‐analytical tool capable of acquiring time‐resolved Raman data from Martian targets at standoff distances of a few ...
G. Lopez‐Reyes, J. A. Manrique, E. Clavé, A. Ollila, O. Beyssac, P. Pilleri, S. Bernard, E. Dehouck, M. Veneranda, S. K. Sharma, M. Nachon, J. Aramendia, O. Forni, F. Rull, T. Acosta‐Maeda, A. Brown, S. M. Angel, K. Castro, E. Cloutis, L. Coloma, J. Comellas, D. Delapp, R. Jakubek, S. Julve‐Gonzalez, E. Kelly, J. M. Madariaga, G. Montagnac, I. Poblacion, S. Schröder, S. A. Connell, I. Reyes‐Rodriguez, Z. U. Wolf, S. Maurice, O. Gasnault, S. Clegg, A. Cousin, R. C. Wiens, the SuperCam Raman Working Group and the SuperCam Team   +37 more
wiley   +1 more source

Probing the Sources of Ultra-High-Energy Cosmic Rays—Constraints from Cosmic-Ray Measurements

Universe
Ultra-high-energy cosmic rays (UHECRs) are the most energetic particles known—and yet their origin is still an open question. However, with the precision and accumulated statistics of the Pierre Auger Observatory and the Telescope Array, in combination ...
Teresa Bister
doaj   +1 more source

Interpolating Electron Diffusion Coefficients in Earth's Radiation Belts: A Neural Network Model Inspired by Video Frame Interpolation

Space Weather, Volume 23, Issue 11, November 2025.
Abstract Many numerical models have been built to uncover the physical mechanisms governing radiation belt dynamics and enable real‐time forecasting. The diffusion coefficient, as a critical input for these models, is usually obtained through linear interpolation from precomputed diffusion coefficient libraries.
Jianhang Wang, Zheng Xiang, Binbin Ni, Junhu Dong, Yangxizi Liu, Jingle Hu, Haozhi Guo, Jiakun Dai   +7 more
wiley   +1 more source

The importance of atmospheric monitoring at the Pierre Auger Observatory

EPJ Web of Conferences, 2017
The Pierre Auger Observatory is an ultra-high energy cosmic ray experiment employing a giant surface array of particle detectors together with telescopes to image fluorescence light from extensive air showers in the atmosphere.
Dawson Bruce R.
doaj   +1 more source

Atomic and Molecular Ions in Atmospheric Chemistry: Interfacial Reactivity, Emerging Mechanisms, and Future Perspectives

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 20, 28 October 2025.
Abstract Atomic and molecular ions (AIs and MIs) play distinct yet complementary roles in atmospheric chemistry, influencing aerosol reactivity, cloud formation, and climate. AIs, with high charge density and structural simplicity, generate intense interfacial fields that accelerate reactions such as halogen activation and sulfate formation.
Xiangrui Kong, Markus Ammann, Christian George, Daniel Knopf   +3 more
wiley   +1 more source

Correlation between the UHECRs measured by the Pierre Auger Observatory and Telescope Array and neutrino candidate events from IceCube

EPJ Web of Conferences, 2016
We present the results of three searches for correlations between ultra-high energy cosmic ray events measured by Telescope Array and the Pierre Auger Observatory and high-energy neutrino candidate events from IceCube.
Christov A., Golup G., Montaruli T., Rameez M., Aublin J., Caccianiga L., Ghia P.L., Roulet E., Unger M., Sagawa H., Tinyakov P.   +10 more
doaj   +1 more source

Results from the Telescope Array and review of HiRes

EPJ Web of Conferences, 2013
A new measurement of the cosmic ray spectrum using the Telescope Array surface arrays is presented. Results on the composition of ultra-high energy cosmic rays from air-fluorescence measurements of shower maximum distributions are presented.
Sokolsky P.
doaj   +1 more source

Ultra-high energy cosmic rays: a probe into new physics [PDF]

, 2002
P. Blasi, P. Blasi
openalex   +1 more source

A Detectable Ultra-high-energy Cosmic-Ray Outburst from GRB 221009A

The Astrophysical Journal
Gamma-ray bursts (GRBs) have been proposed as one of the promising sources of ultra-high-energy cosmic rays (UHECRs), but observational evidence is still lacking.
Hao-Ning He, B. Theodore Zhang, Yi-Zhong Fan   +2 more
doaj   +1 more source

Anisotropy expectations for ultra-high-energy cosmic rays with future high-statistics experiments [PDF]

, 2014
B. Rouillé d’Orfeuil, D. Allard, C. Lachaud, E. Parizot, C. Blaksley, Shigehiro Nagataki   +5 more
openalex   +1 more source