Results 51 to 60 of about 9,642 (217)

Space Weather and Solar Wind Studies with OWFA

, 2017
In this paper, we review the results of interplanetary scintillation (IPS) observations made with the legacy system of the Ooty Radio Telescope (ORT) and compare them with the possibilities opened by the upgraded ORT, the Ooty Wide Field Array (OWFA ...
Chengalur, J. N., Manoharan, P. K., Subrahmanya, C. R.   +2 more
core   +1 more source

Particle scattering in turbulent plasmas with amplified wave modes [PDF]

, 2013
High-energy particles stream during coronal mass ejections or flares through the plasma of the solar wind. This causes instabilities, which lead to wave growth at specific resonant wave numbers, especially within shock regions. These amplified wave modes
Agueda, Bavassano, Bershadskii, Bigot, Bruno, Elsässer, F. Spanier, Goldreich, Goldreich, Hollweg, Howes, Jin, Jokipii, Kennel, Landi, Lange, Lee, M. Battarbee, Maron, Ng, Orszag, Qin, R. Vainio, Reames, S. Lange, Schlickeiser, Shalchi, Spanier, Sridhar, T. Laitinen, Tu, Vainio, Vainio, Vainio, Vay, Wisniewski   +35 more
core   +2 more sources

Asymmetrically Distributed Kelvin‐Helmholtz Instability at Venusian Magnetosphere

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The asymmetric distribution of Kelvin‐Helmholtz (KH) instability at Venusian ionopause is investigated using a multifluid model. Results show that KH instability distributes asymmetrically, preferentially developing in the −E (anti‐parallel to the interplanetary electric field) hemisphere.
Maodong Yan, Jiuhou Lei, Naoki Terada, Binzheng Zhang, Tong Dang, Ryoya Sakata, Shotaro Sakai, Yingjuan Ma   +7 more
wiley   +1 more source

Turbulence and Polytropic Changes across Interplanetary Shocks Observed by the Parker Solar Probe

The Astrophysical Journal Letters
Interplanetary shocks play a critical role in solar wind dynamics, influencing the properties of turbulence and thermodynamic processes. In this study, we statistically analyze changes in turbulence characteristics and polytropic indices across 37 quasi ...
Yiming Jiao, Lingling Zhao, Xingyu Zhu, Ashok Silwal, Nibuna S. M. Subashchandar, Zeping Jin   +5 more
doaj   +1 more source

The Evolution of Hot Flow Anomalies in Martian Space Environment

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Hot Flow Anomalies (HFAs) are transient foreshock structures generated by solar wind discontinuity‐bow shock interactions, with their evolution only confirmed near Earth. Using MAVEN and Tianwen‐1 joint observations, we study the evolution of a Martian HFA event detected on 17 September 2022 (dayside by MAVEN, nightside by Tianwen‐1).
Heying Wang, Mingyu Wu, Yangjun Chen, Qi Lv, Guoqiang Wang, Sudong Xiao, Peng E, Aimin Du, Ding Yuan, Tielong Zhang   +9 more
wiley   +1 more source

Interplay of Large-scale Drift and Turbulence in the Heliospheric Propagation of Solar Energetic Particles

The Astrophysical Journal
The gradient and curvature of the Parker spiral interplanetary magnetic field give rise to curvature and gradient guiding-center drifts on cosmic rays (CRs). The plasma turbulence present in interplanetary space is thought to suppress the drifts; however,
T. Laitinen, S. Dalla
doaj   +1 more source

The Effect of Large Scale Magnetic Turbulence on the Acceleration of Electrons by Perpendicular Collisionless Shocks [PDF]

, 2010
We study the physics of electron acceleration at collisionless shocks that move through a plasma containing large-scale magnetic fluctuations. We numerically integrate the trajectories of a large number of electrons, which are treated as test particles ...
Armstrong, Axford, Bell, Burgess, Fan Guo, Giacalone, Giacalone, Giacalone, Giacalone, Joe Giacalone, Jokipii, Jones, Krymsky, Leroy, Lowe, Lu, Ng, Press, Pulupa, Sagdeev   +19 more
core   +1 more source

Parker Solar Probe Observations of Proton Core‐Beam Distributions in Heliospheric Current Sheet Region: Quasilinear Instability Analysis Combined With Collisional Relaxation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Parker Solar Probe has been proven as instrumental for the observation of young solar wind. During the encounters E‐07 and E‐08, PSP recorded the core plus beaming protons crossing the heliospheric current Sheet region. When the observed PSP data is plotted in the temperature ratio versus parallel beta space, it is found that the occurrence ...
M. Rashid, P. H. Yoon, J. Huang, C. Salem, M. Sarfraz, S. Alnussirat, R. A. López, J. Seough, H. Xie, D. Larson, R. Livi   +10 more
wiley   +1 more source

Heliospheric Diffusion of Stochastic Parker Spirals in Radially Evolving Solar Wind Turbulence

The Astrophysical Journal
 We present a stochastic field line mapping model where the interplanetary magnetic field lines are described by a density distribution function satisfying a Fokker–Planck equation that is solved numerically.
N. H. Bian, R. D. Strauss, G. Li, N. E. Engelbrecht   +3 more
doaj   +1 more source

The Pointing Error Due To Laser Propagation in Space Plasma for TianQin Gravitational Wave Detection

Space Weather, Volume 24, Issue 4, April 2026.
Abstract TianQin, a space‐borne gravitational wave observatory, is designed to detect gravitational‐wave signals via laser interferometry. As the inhomogeneous space plasma surrounds the inter‐satellite laser links, the propagation of the laser in space plasma can introduce pointing error noise.
Shenwei Zhou, Wei Su, Shiyuan Zhou, Chaofan Li, Jixiang Zhang   +4 more
wiley   +1 more source