Results 71 to 80 of about 69,396 (273)

A Particle Simulation for the Pulsar Magnetosphere: Relationship of Polar Cap, Slot Gap, and Outer Gap [PDF]

, 2011
To explain the pulsed emission of the rotation powered pulsars from radio to gamma-ray, the polar cap models, the slot gap models, and the outer gap models are proposed. The recent observations suggest that these models are likely to co-exist in the same
Shibata, Shinpei, Yuki, Shinya
core   +1 more source

Statistical Estimate of the Magnetopause Reconnection Rate as a Function of the Interplanetary Magnetic Field Clock Angle

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract The magnetic reconnection rate at the magnetopause is crucial for solar wind and magnetosphere coupling. However, direct measurement is challenging due to inherent uncertainties and limited electron diffusion region statistics, hindering understanding of the guide field's influence on the normalized reconnection rate.
B. Michotte de Welle, N. Aunai, B. Lavraud, V. Génot, G. Nguyen, A. Ghisalberti, A. Jeandet, D. Sibeck, H. Connor   +8 more
wiley   +1 more source

A watercolor painting of northern lights seen above Japan on 11 February 1958

Journal of Space Weather and Space Climate, 2019
A 61 years old watercolor painting of red aurora was recently provided from a Japanese citizen, and it contributed to understand the detailed time evolution around the peak time of the large magnetic storm on 11 February 1958.
Kataoka Ryuho, Kazama Shigeru
doaj   +1 more source

Compiling Magnetosheath Statistical Data Sets Under Specific Solar Wind Conditions: Lessons Learnt From the Dayside Kinetic Southward IMF GEM Challenge

Earth and Space Science, 2020
The Geospace Environmental Modelling (GEM) community offers a framework for collaborations between modelers, observers, and theoreticians in the form of regular challenges.
A. P. Dimmock, H. Hietala, Y. Zou
doaj   +1 more source

A new look at spherical accretion in High Mass X-ray Binaries

, 2012
Currently used model of spherical accretion onto a magnetized rotating neutron star encounters major difficulties in explaining the entry rate of accreting material into the stellar field and spin evolution of long-period X-ray pulsars.
Beskrovnaya, N. G., Ikhsanov, N. R., Pustil'nik, L. A.   +2 more
core   +1 more source

Protoplanet magnetosphere interactions [PDF]

Astronomy & Astrophysics, 2006
In this paper, we study a simple model of an orbiting protoplanet in a central magnetospheric cavity, the entry into such a cavity having been proposed as a mechanism for halting inward orbital migration. We have calculated the gravitational interaction of the protoplanet with the magnetosphere using a local model and determined the rate of evolution ...
openaire   +2 more sources

Deep Learning‐Based Prediction of High‐Speed Solar Wind Streams: Spatio‐Temporal Dependencies in Coronal Hole Dynamics

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract High‐speed solar wind streams (HSS), originating from coronal holes (CH), are key drivers of space weather disturbances and heliospheric dynamics. However, forecasting HSS remains challenging due to the evolving morphology of CH. In this study, we present a deep learning‐based framework that models the spatiotemporal relationship between CH ...
J. J. Abraham‐Alowonle, Amr Hamada, Moataz Abdelwahab, Kanya Kusano, Ayman Mahrous   +4 more
wiley   +1 more source

Center for geospace storms graduate student workshop

Frontiers in Astronomy and Space Sciences
The US National Aeronautics and Space Administration (NASA) DRIVE Center for Geospace Storms (CGS) hosted a workshop for graduate students conducting research in geospace science in November 2024.
Amy Keesee, Viacheslav G. Merkin, Michael Wiltberger, Stephen Hale, Eric Winter, Nikhil Rao   +5 more
doaj   +1 more source

Space-Borne Electron Accelerator Design

Frontiers in Astronomy and Space Sciences, 2019
Renewed interest in active experiments with relativistic particle beams in space has led to the development of solid-state radio-frequency (RF) linear accelerators (linac) that can deliver MeV electron beams but operate with low-voltage DC power supplies.
John W. Lewellen, Cynthia E. Buechler, Bruce E. Carlsten, Gregory E. Dale, Michael A. Holloway, Douglas E. Patrick, Steven A. Storms, Dinh C. Nguyen   +7 more
doaj   +1 more source

Occurrence of ECH waves in Jovian magnetosphere: comparison with Earth and Saturn [PDF]

, 2023
Jayasri Joseph, A. N. Jaynes, W. S. Kŭrth, J. D. Menietti   +3 more
openalex   +1 more source