Results 11 to 20 of about 12,081 (211)

Investigating Coronal Holes and CMEs as Sources of Brightness Depletion Detected in PSP/WISPR Images

open access: yesThe Astrophysical Journal, 2023
The Parker Solar Probe (PSP) mission provides a unique opportunity to observe the solar corona from distances below 20 R _☉ . In this work, we utilize white light images from the Wide-field Imager for Solar PRobe aboard the PSP from solar encounters 10 ...
Guillermo Stenborg   +4 more
doaj   +1 more source

EUV imaging and spectroscopy for improved space weather forecasting

open access: yesJournal of Space Weather and Space Climate, 2020
Accurate predictions of harmful space weather effects are mandatory for the protection of astronauts and other assets in space, whether in Earth or lunar orbit, in transit between solar system objects, or on the surface of other planetary bodies. Because
Golub Leon   +8 more
doaj   +1 more source

Coronal spectral diagnostics: The coronal solar magnetism observatory (COSMO)

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The Need: Understanding and predicting the major phenomena taking place in the solar corona, such as flares and Coronal Mass Ejections (CMEs), the heating and evolution of the solar atmosphere, and the acceleration of the solar wind, are fundamental ...
Enrico Landi   +9 more
doaj   +1 more source

MHD turbulence and heating of the open field-line solar corona [PDF]

open access: yes, 2003
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations.
Dmitruk, Pablo   +13 more
core   +1 more source

Waves in the Solar Corona [PDF]

open access: yesSymposium - International Astronomical Union, 2004
Waves at all scales, ranging in wavelength from the size of a loop (fraction of a solar radius) down to the gyroradii of coronal ions (about hundred meters), are believed to play a key role in the transport of mechanical energy from the chromosphere to the Sun's corona and wind, and through the dissipation of wave energy in the heating and sustaining ...
openaire   +2 more sources

Seismological demonstration of perpendicular density structuring in the solar corona [PDF]

open access: yes, 2008
The peculiarities of the propagating transverse waves observed in the solar corona with the CoronalMulti-channel Polarimeter (CoMP)indicate the existence of fine field structuring in the coronal density.
V. M. Nakariakov   +7 more
core   +1 more source

Slow solar wind acceleration through the middle corona: Spacecraft radio studies

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The “Middle Corona”, defined by recent consensus as the region spanning 1.5–6 solar radii (R⊙, heliocentric), is an important zone through which several structural and dynamic changes occur in coronal streamer regions. Among these is a regime change from
David B. Wexler   +3 more
doaj   +1 more source

Observational signatures of waves and flows in the solar corona [PDF]

open access: yes, 2015
DM acknowledges support of a Royal Society University Research Fellowship and a KU Leuven Research Council senior research fellowship (SF/12/008). The research leading to these results has also received funding from the European Commission Seventh ...
Antolin, Patrick   +3 more
core   +1 more source

The possible role of vortex shedding in the excitation of kink-mode oscillations in the solar corona [PDF]

open access: yes, 2009
We propose a model for the excitation of horizontally polarised transverse (kink) magnetoacoustic oscillations of solar coronal loops by upflows associated with coronal mass ejections.
V. M. Nakariakov   +5 more
core   +1 more source

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