Results 81 to 90 of about 962 (184)
The Astrophysical JournalThis paper presents three distinct wave trains that occurred on 2023 April 21: a broad quasiperiodic fast-propagating (QFP) wave train and bidirectional narrow QFP wave trains.
Xinping Zhou +10 more
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Magnetohydrodynamic Wave Mode Conversion in a Pseudostreamer Structure
The Astrophysical JournalThe interaction of a fast magnetoacoustic wave with a magnetic null point in a pseudostreamer magnetic configuration is modeled. The incident fast wave is excited by an impulsive velocity driver located in the corona outside the Alfvén-acoustic ...
Yu Zhong +3 more
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The Astrophysical Journal Supplement SeriesTransverse oscillations of coronal loops not only influence coronal dynamics, but also provide a new perspective for coronal detection. To enhance their exploitation and utilization, accurately estimating the oscillation parameters is crucial.
Hongbo Li +5 more
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The Astrophysical JournalWe performed an analysis of the extreme-ultraviolet (EUV) wave event on 2022 March 31. The event originated from active region (AR) 12975 located at N13W52 in the field of view of the Atmospheric imaging Assembly (AIA) and exactly at the west limb viewed
Ramesh Chandra, P. F. Chen, Pooja Devi
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Alfven Wave Transmission and Heating of Solar Coronal Loops
The Astrophysical Journal, 1998 We discuss the problem of wave transmission from the solar photosphere into coronal loops. We conclude that wave energy can be efficiently transmitted into loops with a sufficiently twisted magnetic field. The value of the required twist is below but close to the threshold for kink instability.
C. Litwin, R. Rosner
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Numerical Simulations of Slow Standing Waves in a Curved Solar Coronal Loop
The Astrophysical Journal, 2007 We consider slow standing waves that are impulsively excited in a curved solar coronal loop. The numerical model we implement includes the effect of nonlinearity in the frame of two-dimensional ideal magnetohydro-dynamics. We discuss the role of curved magnetic field lines and of the slow and fast pulses overlapping at one of the loop's ...
Selwa, M., Ofman, L., Krzysztof Murawski
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Study on the Responses in the Transition Region of Coronal Extreme-ultraviolet Waves
The Astrophysical JournalCoronal extreme-ultraviolet (EUV) waves are globally propagating disturbances in the solar atmosphere. The existence of coronal EUV waves was predicted by chromospheric Moreton–Ramsey waves.
Xiaoqian Wang +6 more
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The Astrophysical JournalQuasiperiodic fast propagating (QFP) magnetosonic waves have been discovered in the solar corona in the extreme ultraviolet (EUV) since the launch of the Solar Dynamics Observatory (SDO) spacecraft more than a decade ago.
Leon Ofman +3 more
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Measuring the Coronal Magnetic Field with 2D Coronal Seismology: A Forward-modeling Validation
The Astrophysical Journal Supplement SeriesIn recent years, a two-dimensional (2D) coronal seismology technique applied to spectral-imaging data from the Coronal Multi-channel Polarimeter (CoMP) and Upgraded Coronal Multi-channel Polarimeter (UCoMP) has enabled routine measurement of the global ...
Zihao Yang +3 more
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Kinetic Physics of the Solar Corona and Solar Wind
Living Reviews in Solar Physics, 2006 Kinetic plasma physics of the solar corona and solar wind are reviewed with emphasis on the theoretical understanding of the in situ measurements of solar wind particles and waves, as well as on the remote-sensing observations of the solar corona made by
Marsch Eckart
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