Results 141 to 150 of about 62,110 (306)

A probabilistic approach to the drag-based model

open access: yesJournal of Space Weather and Space Climate, 2018
The forecast of the time of arrival (ToA) of a coronal mass ejection (CME) to Earth is of critical importance for our high-technology society and for any future manned exploration of the Solar System. As critical as the forecast accuracy is the knowledge
Napoletano Gianluca   +5 more
doaj   +1 more source

A Workflow-Oriented Approach To Propagation Models In Heliophysics

open access: yesComputer Science, 2014
The Sun is responsible for the eruption of billions of tons of plasma andthe generation of near light-speed particles that propagate throughout the solarsystem and beyond.
Gabriele Pierantoni   +4 more
doaj   +1 more source

Solar Sources of Interplanetary Magnetic Clouds Leading to Helicity Prediction

open access: yes, 2018
This study identifies the solar origins of magnetic clouds that are observed at 1 AU and predicts the helical handedness of these clouds from the solar surface magnetic fields.
Riley, Pete, Tran, T., Ulrich, Roger K.
core   +2 more sources

Identifying Coronal Mass Ejection Active Region Sources: An Automated Approach

open access: yesThe Astrophysical Journal
Identifying the source regions of coronal mass ejections (CMEs) is crucial for understanding their origins and improving space weather forecasting. We present an automated algorithm for matching CMEs detected by the Large Angle Spectrometric Coronagraph ...
Julio Hernandez Camero   +2 more
doaj   +1 more source

Solar Activity and Coronal Mass Ejections: Teacher's Guide [PDF]

open access: yes
In this activity, students investigate solar activity and discover that the Sun constantly emits matter into space in the form of the solar wind. They will also find that from time to time the sun also ejects clouds of charged particles in an event ...

core   +1 more source

Acceleration and Release of Solar Energetic Particles Associated with a Coronal Shock on 2021 September 28 Observed by Four Spacecraft

open access: yesThe Astrophysical Journal
The main driver of the acceleration of solar energetic particles (SEPs) is believed to be shocks driven by coronal mass ejections. Extreme-ultraviolet (EUV) waves are thought to be the propagating footprint of the shock on the solar surface.
Bin Zhuang   +7 more
doaj   +1 more source

Prompt Response of the Dayside Magnetosphere to Discrete Structures Within the Sheath Region of a Coronal Mass Ejection. [PDF]

open access: yesGeophys Res Lett, 2021
Blum LW   +6 more
europepmc   +1 more source

The August 24, 2002 Coronal Mass Ejection: When a Western Limb Event Connects to Earth

open access: yes, 2008
We discuss how some coronal mass ejections (CMEs) originating from the western limb of the Sun are associated with space weather effects such as solar energetic particles (SEPs), shock or geo-effective ejecta at Earth.
Igor V. Sokolov   +3 more
core   +1 more source

Global Coronal Mass Ejections

open access: yesThe Astrophysical Journal, 2007
Observations of the low solar corona in the extreme ultraviolet and in soft X-rays evidence a close relationship of coronal dimmings and coronal mass ejections (CMEs). Dimmings are usually interpreted as places of plasma evacuation during a CME. We characterize a CME by the apparent angular extent of associated dimmings above the solar limb and define ...
Igor Veselovsky   +3 more
openaire   +1 more source

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