Results 21 to 30 of about 6,269,186 (288)
The Astrophysical Journal, 2023 The first significant sunquake event of Solar Cycle 25 was observed during the X1.5 flare of 2022 May 10, by the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory.
Alexander G. Kosovichev +2 more
doaj +1 more source
The Astrophysical Journal, 2023 High-resolution spectral observations of the lower solar atmosphere (chromosphere and transition region) during coronal heating events, in combination with predictions from models of impulsively heated loops, provide powerful diagnostics of the ...
Paola Testa +3 more
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 It is well accepted that the physical properties obtained from the solar magnetic field observations of active regions (ARs) are related to solar eruptions.
Jingjing Wang +3 more
doaj +1 more source
Development and application of a global magnetic field evolution model for the solar corona [PDF]
, 2009 Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
core +2 more sources
Topological structure of the magnetic solar corona [PDF]
, 2007 The solar corona is a highly complex and active plasma environment, containing many exotic phenomena such as solar flares, coronal mass ejections, prominences, coronal loops, and bright points.
Maclean, Rhona Claire
core +2 more sources
Sympathetic Partial Filament Eruptions Caused by the Interaction between Two Nearby Filaments
The Astrophysical Journal, 2023 To better understand the physical connections in sympathetic solar eruptions, we investigated the interaction between two nearby filaments and their successive partial eruptions in the active region (AR) NOAA 12866 on 2021 September 9 by using data from ...
Liping Yang +9 more
doaj +1 more source
The Astrophysical Journal, 2023 Although magnetic reconnection plays a key role in the formation of a solar filament, the detailed formation process is still ambiguous. Combining the observational data from the New Vacuum Solar Telescope and the Solar Dynamics Observatory, we analyzed ...
Liping Yang +9 more
doaj +1 more source
Solar wind dependence of ion parameters in the earth's magnetospheric region calculated from CLUSTER observations [PDF]
, 2008 Moments calculated from the ion distributions (~0–40 keV) measured by the Cluster Ion Spectrometry (CIS) instrument are combined with data from the Cluster Flux Gate Magnetometer (FGM) instrument and used to characterise the bulk properties of the plasma
Denton, M. H., Taylor, M. G. G. T.
core +5 more sources
On the topology of global coronal magnetic fields [PDF]
, 2014 This thesis considers the magnetic topology of the global solar corona. To understand the magnetic topology we use the magnetic skeleton which provides us with a robust description of the magnetic field.
Edwards, Sarah J.
core +2 more sources
Evolution of Elemental Abundances in Hot Active Region Cores from Chandrayaan-2 XSM Observations
The Astrophysical Journal, 2023 The first ionization potential (FIP) bias, whereby elemental abundances for low-FIP elements in different coronal structures vary from their photospheric values and may also vary with time, has been widely studied.
Biswajit Mondal +7 more
doaj +1 more source