Results 31 to 40 of about 76,343 (291)

Review of Solar Energetic Particle Models [PDF]

, 2022
Solar Energetic Particles (SEP) events are interesting from a scientific perspective as they are the product of a broad set of physical processes from the corona out through the extent of the heliosphere, and provide insight into processes of particle acceleration and transport that are widely applicable in astrophysics. From the operations perspective,
Whitman, Kathryn, Egeland, Ricky, Richardson, Ian G, Allison, Clayton, Quinn, Philip, Barzilla, Janet, Kitiashvili, Irina, Sadykov, Viacheslav, Bain, Hazel M, Dierckxsens, Mark, Mays, M Leila, Tadesse, Tilaye, Lee, Kerry T, Semones, Edward, Luhmann, Janet G, Nunez, Marlon, White, Stephen M, Kahler, Stephen W, Ling, Alan G, Smart, Don F, Shea, Margaret A, Tenishev, Valeriy, Soukaina F, Boubrahimi, Aydin, Berkay, Martens, Petrus, Angryk, Rafal, Marsh, Michael S, Dalla, Silvia, Crosby, Norma, Schwadron, Nathan A, Kozarev, Kamen, Gorby, Matthew, Young, Matthew A, Laurenza, Monica, Cliver, Edward W, Alberti, Tommaso, Stumpo, Mirko, Benella, Simone, Papaioannou, Athanasios, Anastasiadis, Anastasios, Sandberg, Ingmar, Georgoulis, Manolis K, Ji, Anli, Kempton, Dustin, Pandey, Chetraj, Li, Gang, Hu, Junxiang, Zank, Gary P, Lavasa, Eleni, Giannopoulos, Giorgos, Falconer, David, Kadadi, Yash, Fernandes, Ian, Dayeh, Maher A, Munoz-Jaramillo, Andres, Chatterjee, Subhamoy, Moreland, Kimberly D, Sokolov, Igor V, Roussec, Ilia I, Taktakishvili, Aleksandre, Effenberger, Frederic, Gombosi, Tamas, Huang, Zhenguang, Zhao, Lulu, Wijsen, Nicolas, Aran, Angels, Poedts, Stefaan, Kouloumvakos, Athanasios, Paassilita, Miikka, Vainio, Rami, Belov, Anatoly, Eroshenko, Eugenia A, Abunina, Maria A, Abunin, Artem A, Balch, Christopher C, Malandraki, Olga, Karavolos, Michalis, Herber, Bernd, Labrenz, Johannes, Kühl, Patrick, Kosovichev, Alexander G, Oria, Vincent, Nita, Gelu M, Illarionov, Egor, O'Keefe, PAtrick M, Jiang, Yucheng, Fereira, Sheldon H, Ali, Aatiya, Paouris, Evangelos, Aminalfragia-Giamini, Sigiava, Jiggens, Piers, Jin, Meng, Lee, Christina O, Palmerio, Erika, Bruno, Alessandro, Kasapis, Spiridon, Wang, Xiantong, Cheng, Yang, Sanahuja, Blai, Lario, David, Jacobs, Carla, Strauss, Du Toit, Steyn, Ruhann, den Berg van, Jabus, Swalwell, Bill, Waterfall, Charlotte, Nedal, Mohamed, Miteva, Rositsa, Dechev, Momchil, Zucca, Pietro, Engell, Alec, Maze, Brianna, Farmer, Harold, Kerber, Thuha, Barnett, Ben, Loomis, Jeremy, Grey, Nathan, Thompson, Barbara J, Linker, Jon A, Caplan, Ronald M, Downs, Cooper, Török, Tibor, Linello, Roberto, Titov, Viacheslav, Zhang, Ming, Hosseinzadeh, Pouya   +125 more
openaire   +1 more source

Solar wind turbulence: Connections with energetic particles

New Astronomy, 2021
Abstract For the solar wind, a wealth of observational evidence indicates that turbulence is an important dynamical process for velocity (v), magnetic (b), and other related fluctuations at MHD (fluid) scales. Here we review such observations and turbulence features, including discussion of when wave or turbulence descriptions can (or cannot) explain
Oughton, Sean, Engelbrecht, N. Eugene
openaire   +2 more sources

Effects of interplanetary transport on derived energetic particle source strengths [PDF]

, 2010
We study the transport of solar energetic particles (SEPs) in the inner heliosphere in order to relate observations made by an observer at 1 AU to the number and total energy content of accelerated particles at the source, assumed to be near the Sun.
Chollet, E. E., Giacalone, J., Mewaldt, R. A.   +2 more
core   +1 more source

Temporal Evolution of Solar Energetic Particle Spectra [PDF]

Solar Physics, 2016
During solar flares and coronal mass ejections, solar energetic par- ticles (SEPs) may be released into the interplanetary medium and near-Earth locations. The energy spectra of SEP events at 1 AU are typically averaged over the entire event or studied in a few snapshots.
Doran, Donald Joseph, Dalla, Silvia
openaire   +1 more source

Yield Function of the DOSimetry TELescope Count and Dose Rates Aboard the International Space Station

Space Weather, 2021
The Earth is constantly hit by energetic particles originating from galactic sources. The flux of these particles is altered by the magnetized solar wind in the heliosphere and the Earth's magnetic field.
A. S. Caprotti, M. Brüdern, S. Burmeister, B. Heber, K. Herbst   +4 more
doaj   +1 more source

Experimental Observation Of Energetic Ions Accelerated By Three-Dimensional Magnetic Reconnection In A Laboratory Plasma [PDF]

, 2002
Magnetic reconnection is widely believed responsible for heating the solar corona as well as for generating X-rays and energetic particles in solar flares. On astrophysical scales, reconnection in the intergalactic plasma is a prime candidate for a local
Brown, Michael R., Cothran, C. D., Landreman, Matthew Joseph, , \u2703, Matthaeus, W. H., Schlossberg, David J., , \u2701   +4 more
core   +3 more sources

Space Climate and Solar Energetic Particles [PDF]

Iranian Journal of Astronomy and Astrophysics
In this paper, we investigate the effect of solar corona magnetic activities during 11-year periods and energetic particles on global warming. According to atmospheric changes during the past years, the relationship between these two issues should be ...
Ehsan Tavabi, Sima Zeighami, Yones Kharaghani   +2 more
doaj   +1 more source

Solar Energetic Particle Events: Phenomenology and Prediction [PDF]

Space Science Reviews, 2003
Solar energetic particle events can cause major disruptions to the operation of spacecraft in earth orbit and outside the earth’s magnetosphere and have to be considered for EVA and other manned activities. They may also have an effect on radiation doses received by the crew flying in high altitude aircraft over the polar regions.
Gabriel, S.B., Patrick, G.J.
openaire   +3 more sources

Revisiting empirical solar energetic particle scaling relations

Astronomy & Astrophysics, 2023
Aims. The possible influence of solar superflares on the near-Earth space radiation environment are assessed through the investigation of scaling laws between the peak proton flux and fluence of solar energetic particle (SEP) events with the solar flare soft X-ray peak photon flux. Methods. We compiled a catalog of 65 well-connected (W20-90) SEP events
Papaioannou, Athanasios, Herbst, Konstantin, Ramm, Tobias, Cliver, Edward W., Lario, David, Veronig, Astrid M.   +5 more
openaire   +2 more sources

Fe/O Variations Relative to Source Longitude and Heliospheric Current Sheet in Large Solar Energetic Particle Events

The Astrophysical Journal
The Fe/O enhancements exhibit significant variations in gradual solar energetic particle (SEP) events. Several causes have been suggested including transport effects in the interplanetary space and flare contribution.
Jinhye Park, Radoslav Bucik, Hyun-Jin Jeong, Yong-Jae Moon   +3 more
doaj   +1 more source