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Reconciling Observational Challenges to the Impulsive-Piston Shock-Excitation Scenario. I. Kinematic Challenges
Until now, there is no consensus on the origin of coronal shock waves. Questions also remain about the patterns that govern the propagation of the...
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Impulsive origin of solar spicule-like jets
Using the observations of the coronal hole in Si IV 1393.755 Å line as recorded by interface region imaging spectrograph (IRIS) on 8th October 2013,...
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Study of Fine Radio-Burst Structures (FRBS) Observed by the Mexican Array Radio Telescope (MEXART)
Solar events occur in several energy ranges and durations, with emissions involving a wide range of the electromagnetic spectrum. The present work...
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Reconciling Observational Challenges to the Impulsive-Piston Shock-Excitation Scenario. II. Shock Waves Produced in CME-Less Events with a Null-Point Topology
Continuing Article
I , we revisit challenging events previously identified by different authors, whose analysis led to conclusions about various...
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Multiwavelength Observations of Quasiperiodic Pulsations in the Impulsive Phase of an Eruptive Flare with the Hard X-Ray Imager On Board ASO-S and Other Instruments
We investigated the quasiperiodic pulsations (QPPs) of the X1.2 solar flare (SOL2023-01-06T00:57) based on multi-instrument observations, especially...
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Interferometric Imaging, and Beam-Formed Study of a Moving Type-IV Radio Burst with LOFAR
Type-IV radio bursts have been studied for over 50 years. However, the specifics of the radio emission mechanisms is still an open question. In order...
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High-Cadence Observations of Magnetic Field Dynamics and Photospheric Emission Sources in the Eruptive Near-the-Limb X4.9 Solar Flare on 25 February, 2014: Evidences for Two-Stage Magnetic Reconnection during the Impulsive Phase
Abstract —We present an analysis of the pre-limb eruptive X4.9 solar flare on February 25, 2014, by means of which we confirm a hypothesis of the...
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INVESTIGATION ON PLASTIC INSTABILITY OF A THIN-WALLED ANISOTROPIC CYLINDRICAL SHELL SUBJECTED TO INTERNAL IMPULSIVE LOADING
AbstractThe plastic instability of an internally impulsively loaded thin-walled end-closed cylindrical shell with plastic anisotropy is investigated....
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Solar Electrons and Protons in Flares with a Pronounced Impulsive Phase
AbstractFlares with a pronounced impulsive phase are considered: X9.7 (S18W63) of November 6, 1997, X6.9 (N17W69) of August 9, 2011, and X1.1...
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Impulsive SEP Events (and Flares)
3He-rich, Fe-rich, and enriched in elements with Z > 50, the abundances of solar energetic particles (SEPs) from the small impulsive SEP events stand...
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PLASTIC INSTABILITY FOR A PLASTIC ORTHOTROPIC SPHERICAL PRESSURE VESSEL UNDER INTERNAL IMPULSIVE LOADING
AbstractThis paper describes an investigation of plastic instability of an internally impulsively loaded thin-walled spherical pressure vessel with...
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A Study of the Possible Mechanism of the Ground Level Enhancement on 28 October 2021
We have analyzed the particle acceleration processes and energy spectra for the ground level enhancement (GLE) event on 28 October 2021 using the in...
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Coronal Signatures of Flare Generated Fast-Mode Wave at EUV and Radio Wavelengths
This paper presents a detailed study of the type II solar radio burst that occurred on 06 March 2014 using combined data analysis. It is a classical...
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Imaging and Spectral Observations of a Type-II Radio Burst Revealing the Section of the CME-Driven Shock That Accelerates Electrons
We report on a multi-wavelength analysis of the 26 January 2014 solar eruption involving a coronal mass ejection (CME) and a Type-II radio burst,...
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An X-ray burst from a magnetar enlightening the mechanism of fast radio bursts
Fast radio bursts (FRBs) are millisecond radio pulses originating from powerful enigmatic sources at extragalactic distances. Neutron stars with...
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Signature of a Highly Magnetized Millisecond Pulsar in GRB Afterglows
We discuss the consequences of a continuously injecting central engine on the Gamma-Ray Burst afterglow emission, and present a possible signature of...
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Statistical Characteristics on SEPs, Radio-Loud CMEs, Low Frequency Type II and Type III Radio Bursts Associated with Impulsive and Gradual Flares
We have statistically analyzed a set of 115 low frequency (Deca-Hectometer wavelengths range) type II and type III bursts associated with major Solar...
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Study of Coronal Mass Ejections Succeeding the Associated X-Ray and γ-Ray Burst Solar Flares
This study is dedicated to the investigation of the characteristics of CMEs following the associated X-ray and γ-ray burst solar flares. Investigated...
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Paired quasi-periodic pulsations of hard X-ray emission in a solar flare
We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) during...
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Monitoring of the Solar Flare Impact on the Ionosphere with VLF Radio Sounding and Magnetometers
The geophysical testing ground at the Kamchatka Peninsula provides wide possibilities to monitor the electromagnetic and ionospheric phenomena at the...