English
Related papers

Related papers: A forecasting framework for galactic cosmic ray fl…

200 papers

The ability to predict times of greater galactic cosmic ray (GCR) fluxes is important for reducing the hazards caused by these particles to satellite communications, aviation, or astronauts. The 11-year solar cycle variation in cosmic rays…

Solar and Stellar Astrophysics · Physics 2015-06-15 Simon R Thomas , Mathew J Owens , Mike Lockwood

Spectra of Galactic Cosmic Rays (GCRs) measured at the Earth are the combination of several processes: sources production and acceleration, propagation in the interstellar medium and propagation in the heliosphere. Inside the solar cavity…

Earth and Planetary Astrophysics · Physics 2017-08-23 P. Bobik , G. Boella , M. J. Boschini , C. Consolandi , S. Della Torre , M. Gervasi , D. Grandi , K. Kudela , E. Memola , S. Pensotti , P. G. Rancoita , M. Tacconi

The 11-year and 22-year modulation of galactic cosmic rays (GCRs) in the inner heliosphere are studied using a numerical model developed by Qin and Shen in 2017. Based on the numerical solutions of Parker's transport equations, the model…

Space Physics · Physics 2018-02-28 Z. -N. Shen , G. Qin

The time-dependent modulation of galactic cosmic rays in the heliosphere is studied by computing intensities using a time-dependent modulation model. By introducing recent theoretical advances in the transport coefficients in the model,…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Rex Manuel , Stefan Ferreira , Marius Potgieter

Galactic cosmic rays (GCRs) inside the heliosphere are affected by magnetic turbulence and Solar wind disturbances which result in the so-called solar modulation effect. To investigate this phenomenon, we have performed a data-driven…

High Energy Astrophysical Phenomena · Physics 2022-10-13 Nicola Tomassetti , Bruna Bertucci , Federico Donnini , Emanuele Fiandrini , Maura Graziani , Behrouz Khiali , Alejandro Reina Conde

Understanding the time-dependent relationship between the Sun's variability and cosmic rays (GCR) is essential for developing predictive models of energetic radiation in space. When traveling inside the heliosphere, GCRs are affected by…

High Energy Astrophysical Phenomena · Physics 2023-03-23 N. Tomassetti , E. Fiandrini , B. Bertucci , F. Donnini , M. Graziani , B. Khiali , A. Reina Conde

In this paper, we investigate the heliospheric modulation of cosmic rays in interplanetary space, focusing on their propagation times and energy losses over the solar cycle. To perform the calculations, we employed a data-driven model based…

High Energy Astrophysical Phenomena · Physics 2025-03-20 Nicola Tomassetti , Bruna Bertucci , Emanuele Fiandrini , Behrouz Khiali

Our ability to identify the sources of cosmic rays and understand how these particles propagate through the interstellar medium is hindered by the combined effects of the solar wind and its embedded magnetic field, collectively known as…

High Energy Astrophysical Phenomena · Physics 2020-07-03 Ilias Cholis , Dan Hooper , Tim Linden

Galactic cosmic rays (GCRs) are affected by solar modulation while they propagate through the heliosphere. The study of the time variation of GCR spectra observed at Earth can shed light on the underlying physical processes, specifically…

Space Physics · Physics 2023-09-18 Claudio Corti , Peter Sadowski , Nikolay Nikonov , Marius Potgieter , Veronica Bindi

Galactic Cosmic Rays (GCRs) have to travel through the heliosphere before they interact with the Earth's atmosphere. During this, they are deflected by the Sun's magnetic field, causing variations in this field to imprint on the flux,…

The spectra of galactic cosmic rays (GCRs) contain crucial information about their origin and propagation through the interstellar medium. When GCRs reach Earth, they are significantly influenced by the solar wind and the heliospheric…

High Energy Astrophysical Phenomena · Physics 2025-04-23 Cheng-Rui Zhu , Kai-Kai Duan

The solar magnetic activity cycle is responsible for periodic episodes of severe space weather, which can perturb satellite orbits, interfere with communications systems, and bring down power grids. Much progress has recently been made in…

Astrophysics · Physics 2007-05-23 T. S. Metcalfe , T. J. Henry , M. Knolker , D. R. Soderblom

The steady-state gamma-ray emission from the Sun is thought to consist of two emission components due to interactions with Galactic cosmic rays: (1) a hadronic disk component, and (2) a leptonic extended component peaking at the solar edge…

High Energy Astrophysical Phenomena · Physics 2025-08-11 A. Acharyya , A. Adelfio , M. Ajello , L. Baldini , C. Bartolini , D. Bastieri , J. Becerra Gonzalez , R. Bellazzini , B. Berenji , E. Bissaldi , R. D. Blandford , R. Bonino , E. Bottacini , S. Buson , R. A. Cameron , P. A. Caraveo , F. Casaburo , F. Casini , E. Cavazzuti , D. Cerasole , S. Ciprini , G. Cozzolongo , P. Cristarella Orestano , A. Cuoco , S. Cutini , F. D'Ammando , D. Depalo , S. W. Digel , N. Di Lalla , L. Di Venere , A. Domínguez , A. Fiori , Y. Fukazawa , P. Fusco , F. Gargano , C. Gasbarra , D. Gasparrini , S. Germani , F. Giacchino , N. Giglietto , F. Giordano , M. Giroletti , S. Guiriec , R. Gupta , M. Hashizume , E. Hays , J. W. Hewitt , A. Holzmann Airasca , D. Horan , X. Hou , T. Kayanoki , M. Kuss , S. Larsson , A. Laviron , J. Li , I. Liodakis , F. Longo , F. Loparco , S. López Pérez , M. N. Lovellette , P. Lubrano , S. Maldera , A. Manfreda , G. Martí-Devesa , R. Martinelli , M. N. Mazziotta , J. E. McEnery , I. Mereu , M. Michailidis , P. F. Michelson , N. Mirabal , T. Mizuno , P. Monti-Guarnieri , M. E. Monzani , A. Morselli , I. V. Moskalenko , N. Omodei , E. Orlando , J. F. Ormes , D. Paneque , M. Persic , M. Pesce-Rollins , V. Petrosian , R. Pillera , G. Principe , S. Rainò , R. Rando , B. Rani , M. Razzano , A. Reimer , O. Reimer , M. Sánchez-Conde , P. M. Saz Parkinson , D. Serini , C. Sgrò , E. J. Siskind , P. Spinelli , D. Tak , L. Tibaldo , D. F. Torres , J. Valverde , Z. Wadiasingh , W. Zhang

On their way through the heliosphere, Galactic Cosmic Rays (GCRs) are modulated by various effects before they can be detected at Earth. This process can be described by the Parker equation, which calculates the phase space distribution of…

Space Physics · Physics 2017-11-28 Jan Gieseler , Bernd Heber , Konstantin Herbst

The flux of cosmic rays in the heliosphere is subjected to variations that are related to the Sun's magnetic activity. To study this effect, updated time series of multichannel observations are needed. Here we present a web application that…

Space Physics · Physics 2022-10-13 David Pelosi , Nicola Tomassetti , Matteo Duranti

We develop a numerical model to study the time-dependent modulation of galactic cosmic rays (GCRs) in the inner heliosphere. In the model a time-delayed modified Parker heliospheric magnetic field (HMF) and a new diffusion coefficient…

Space Physics · Physics 2017-09-26 Gang Qin , Zhenning Shen

Galactic cosmic rays (GCRs) entering the heliosphere are disturbed by the magnetic field of the Sun, which varies the shape and intensity of their local interstellar spectrum. The force-field approximation is a popular way of dealing with…

High Energy Astrophysical Phenomena · Physics 2019-10-02 Claudio Corti , Veronica Bindi , Cristina Consolandi , Christopher Freeman , Andrew Kuhlman , Christopher Light , Matteo Palermo , Siqi Wang

In recent years (2000-2021), human-space activities have been increasing faster than ever. More than 36000 Earth' orbiting objects, all larger than 10 cm, in orbit around the Earth, are currently tracked by the European Space Agency (ESA).…

Space Physics · Physics 2023-07-12 S. Aljbaae , J. Murcia-Pineros , A. F. B. A. Prado , R. V. Moraes , V. Carruba , G. A. Carita

The cosmic-ray Sun shadow, which is caused by high-energy charged cosmic rays being blocked and deflected by the Sun and its magnetic field, has been observed by various experiments, such as Argo-YBJ, HAWC, Tibet, and IceCube. Most notably,…

High Energy Astrophysical Phenomena · Physics 2020-11-03 Julia Becker Tjus , Paolo Desiati , Niklas Döpper , Horst Fichtner , Jens Kleimann , Mike Kroll , Frederik Tenholt