Zobrazeno 1 - 10
of 936
pro vyhledávání: '"Interplanetary shocks"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
The impact of interplanetary (IP) shocks on the Earth’s magnetosphere can greatly disturb the geomagnetic field and electric currents in the magnetosphere-ionosphere system. At high latitudes, the current systems most affected by the shocks are the
Externí odkaz:
https://doaj.org/article/67092dc70bb1493385f965af8ec7ea0c
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 10, Pp n/a-n/a (2024)
Abstract Whistler‐mode waves are commonly observed within the lunar environment, while their variations during Interplanetary (IP) shocks are not fully understood yet. In this paper, we analyze two IP shock events observed by Acceleration, Reconnec
Externí odkaz:
https://doaj.org/article/0af76db72cfd42c9bfcbcde61fbdd978
Autor:
Domenico Trotta, Andrew P. Dimmock, Xochitl Blanco-Cano, Robert J. Forsyth, Heli Hietala, Naïs Fargette, Andrea Larosa, Noé Lugaz, Erika Palmerio, Simon W. Good, Juska E. Soljento, Emilia K. J. Kilpua, Emiliya Yordanova, Oreste Pezzi, Georgios Nicolaou, Timothy S. Horbury, Rami Vainio, Nina Dresing, Christopher J. Owen, Robert F. Wimmer-Schweingruber
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L35 (2024)
We report direct observations of a fast magnetosonic forward–reverse shock pair observed by Solar Orbiter on 2022 March 8 at the short heliocentric distance of 0.5 au. The structure, sharing some features with fully-formed stream interaction region
Externí odkaz:
https://doaj.org/article/130694a91d394b11a0748fdf3dd06fff
Autor:
Immanuel Christopher Jebaraj, Oleksiy Agapitov, Vladimir Krasnoselskikh, Laura Vuorinen, Michael Gedalin, Kyung-Eun Choi, Erika Palmerio, Nicolas Wijsen, Nina Dresing, Christina Cohen, Athanasios Kouloumvakos, Michael Balikhin, Rami Vainio, Emilia Kilpua, Alexandr Afanasiev, Jaye Verniero, John Grant Mitchell, Domenico Trotta, Matthew Hill, Nour Raouafi, Stuart D. Bale
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 1, p L8 (2024)
Collisionless shock waves, ubiquitous in the Universe, are crucial for particle acceleration in various astrophysical systems. Currently, the heliosphere is the only natural environment available for their in situ study. In this work, we showcase the
Externí odkaz:
https://doaj.org/article/779073aee96d4f7bb89e6601e659bc0a
Autor:
Xiaomin Chen, Chuan Li
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L33 (2024)
Coronal mass ejections (CMEs) drive powerful shocks and thereby accelerate solar energetic particles (SEPs) as they propagate from the corona into interplanetary space. Here we present the processes of three-stage particle acceleration by a CME-drive
Externí odkaz:
https://doaj.org/article/01d80158df1a44c2b7978f69246e58fe
Autor:
Xinnian Guo, Linghua Wang, Wenyan Li, Qianyi Ma, Liu Yang, Robert F. Wimmer-Schweingruber, Stuart D. Bale
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L12 (2024)
We present the first observations of in situ electron acceleration at corotating interaction region (CIR) shocks near 1 au, utilizing measurements from Wind and Magnetospheric Multiscale (MMS) mission in the interplanetary medium. As the forward (rev
Externí odkaz:
https://doaj.org/article/abfcb4f2be1440f7851614b4d88a26b4
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 1, p 27 (2024)
The observed energy spectra of accelerated particles at interplanetary shocks often do not match the diffusive shock acceleration (DSA) theory predictions. In some cases, the particle flux forms a plateau over a wide range of energies, extending upst
Externí odkaz:
https://doaj.org/article/b89b0286020e47e3be2d0ced6593cba0
Enhanced Acceleration and Escape of Hydrogen Pickup Ions Upstream from Mars by Interplanetary Shocks
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 75 (2024)
The pickup process of newly ionized hydrogen (H) from the Martian extended exosphere represents an important H ^+ escape channel on Mars. It is generally believed that interplanetary (IP) shocks can accelerate the pickup ions and, in turn, affect the
Externí odkaz:
https://doaj.org/article/220095fcd68a45c5a8778ec1ddb14d2e
Autor:
Aaron Tran, Lorenzo Sironi
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 37 (2024)
We measure the thermal electron energization in 1D and 2D particle-in-cell simulations of quasi-perpendicular, low-beta ( β _p = 0.25) collisionless ion–electron shocks with mass ratio m _i / m _e = 200, fast Mach number ${{ \mathcal M }}_{\mathrm
Externí odkaz:
https://doaj.org/article/295b135b6e97470bb35fa47a88b2fc9e
Autor:
Federica Frassati, Alessandro Bemporad, Salvatore Mancuso, Silvio Giordano, Vincenzo Andretta, Aleksandr Burtovoi, Vania Da Deppo, Yara De Leo, Silvano Fineschi, Catia Grimani, Salvo Guglielmino, Petr Heinzel, Giovanna Jerse, Federico Landini, Alessandro Liberatore, Giampiero Naletto, Gianalfredo Nicolini, Maurizio Pancrazzi, Paolo Romano, Marco Romoli, Giuliana Russano, Clementina Sasso, Daniele Spadaro, Marco Stangalini, Roberto Susino, Luca Teriaca, Michela Uslenghi, Luca Zangrilli
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 15 (2024)
On 2021 September 28, a C1.6 class flare occurred in active region NOAA 12871, located approximately at 27°S and 51°W on the solar disk with respect to Earth’s point of view. This event was followed by a partial halo coronal mass ejection (CME) t
Externí odkaz:
https://doaj.org/article/ff61b8c0fd4240c29f4ceef1584fe810