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Related papers: Probabilistic Forecasting of Radiation Exposure fo…

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We present the first real-time predictions of coronal mass ejection (CME) magnetic structure and resulting geomagnetic impact at Earth for two events using far-upstream observations from Solar Orbiter during March 2024. While our approach…

The geographic structure of radiation dose rates at aircraft altitudes in Earth's atmosphere during the irradiation of Earth by proton spectra from incoming solar particle events is examined using the recently developed MAIRE+ software.…

Applied Physics · Physics 2022-12-19 Christopher S. W. Davis , Keith Ryden , Fan Lei , Ben Clewer , Alex Hands , Clive Dyer

We report results from numerical simulations assessing astrometry measurements with the Multiconjugate Adaptive Optics Relay for ELT Observations (MORFEO) instrument on the Extremely Large Telescope (ELT). Using the Advanced Exposure Time…

Ground level enhancements (GLEs) are relativistic sol particles measured at ground level by a worldwide network of cosmic ray detectors. These sporadic events are associated with solar flares and are assumed to be of a quasi-random nature.…

Earth and Planetary Astrophysics · Physics 2013-03-25 Jorge Pérez-Peraza , Alan Juárez-Zúñiga , Julián Zapotitla-Román , Manuel Alvarez-Madrigal

Recent data released by the AMS experiment on the primary spectra and secondary-to-primary ratios in cosmic rays (CRs) can pose tight constraints to astrophysical models of CR acceleration and transport in the Galaxy, thereby providing a…

High Energy Astrophysical Phenomena · Physics 2018-07-31 Nicola Tomassetti

Although space weather events may not directly affect human life, they have the potential to inflict significant harm upon our communities. Harmful space weather events can trigger atmospheric changes that result in physical and economic…

Solar and Stellar Astrophysics · Physics 2024-05-07 Shlesh Sakpal

Laser communication has advances in compared with radio frequency communication as result of much high carrier frequency from ultraviolet to near infrared. Very narrow laser beam is possible to form with very high power density. But laser…

Instrumentation and Methods for Astrophysics · Physics 2017-11-30 Volodymyr Kuzkov , Sergii Kuzkov , Serhii Borysenko

The X-ray Imaging and Spectroscopy Mission (XRISM), launched into low-Earth orbit in 2023, observes the reflection of solar flare X-rays in the Earth's atmosphere as a by-product of celestial observations. Using a $\sim$one-year data set…

Automatic scheduling techniques are becoming a crucial tool for the efficient planning of large astronomical surveys. A specific scheduling method is being designed and developed for the Atmospheric Remote-sensing Infrared Exoplanet…

Instrumentation and Methods for Astrophysics · Physics 2022-01-20 J. C. Morales , N. Nakhjiri , J. Colomé , I. Ribas , E. García , D. Moreno , F. Vilardell

One of the major issues to be solved is the protection from the effects of ionizing radiation. Exploration mission, lasting two to three years in space, represents a very significant step from the point of view of radiation protection: both…

Solar irradiance forecasts can be dynamic and unreliable due to changing weather conditions. Near the Arctic circle, this also translates into a distinct set of further challenges. This work is forecasting solar irradiance with Norwegian…

Machine Learning · Computer Science 2025-01-20 Niklas Erdmann , Lars Ø. Bentsen , Roy Stenbro , Heine N. Riise , Narada Warakagoda , Paal Engelstad

Ambitious satellite constellation projects by commercial entities and the ease of access to space in recent times have led to a dramatic proliferation of low-Earth space traffic. It jeopardizes space safety and long-term sustainability,…

Being able to accurately predict the arrival of coronal mass ejections (CMEs) at Earth has been a long-standing problem in space weather research and operations. In this study, we use the ELlipse Evolution model based on Heliospheric Images…

Solar energetic particle (SEP) events, as one of the most prominent manifestations of solar activity, can generate severe hazardous radiation when accelerated by solar flares or shock waves formed aside from coronal mass ejections (CMEs).…

Machine Learning · Computer Science 2025-11-13 Anli Ji , Pranjal Patil , Chetraj Pandey , Manolis K. Georgoulis , Berkay Aydin

The LHAASO observatory has recently measured details of the cosmic-ray (CR) spectrum in the knee region (1 -- 10 PeV) with unprecedented precision, including its average CR mass composition and the spectrum of the proton component. We use…

High Energy Astrophysical Phenomena · Physics 2025-07-16 C. Prevotat , Zh. Zhu , S. Koldobskiy , A. Neronov , D. Semikoz , M. Ahlers

Studies of the relationships between environmental exposures and adverse health outcomes often rely on a two-stage statistical modeling approach, where exposure is modeled/predicted in the first stage and used as input to a separately fit…

Methodology · Statistics 2022-04-01 Saskia Comess , Howard H. Chang , Joshua L. Warren

Solar flares, especially the M- and X-class flares, are often associated with coronal mass ejections (CMEs). They are the most important sources of space weather effects, that can severely impact the near-Earth environment. Thus it is…

Solar and Stellar Astrophysics · Physics 2022-12-02 Hewei Zhang , Qin Li , Yanxing Yang , Ju Jing , Jason T. L. Wang , Haimin Wang , Zuofeng Shang

In the past two decades, it has been convincingly argued that magnetospheric radio emissions, of cyclotron maser origin, can occur for exoplanetary systems, similarly as solar planets, with the same periodicity as the planetary orbit. These…

Earth and Planetary Astrophysics · Physics 2023-11-17 E. Mauduit , J. -M. Griessmeier , P. Zarka , J. D. Turner

The determination of the full population of Resident Space Objects (RSOs) in Low Earth Orbit (LEO) is a key issue in the field of space situational awareness that will only increase in importance in the coming years. We endeavour to…

Instrumentation and Methods for Astrophysics · Physics 2024-08-12 Benjamin F. Cooke , James A. Blake , Paul Chote , James McCormac , Don Pollacco

This study focuses on the radiation effects of Sr+ ions--generated from high-altitude nuclear explosions (HANE)--on satellite solar cells in low-Earth orbits (LEO). Along four selected satellite orbits, ion fluences are sampled inside the…

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