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Cross-Correlation Analysis of Cosmic Ray Intensity with Interplanetary and Geomagnetic Parameters during Disturbed and Quiet Periods
AbstractThis work investigates the relationship between cosmic ray intensity (CRI) and key interplanetary and geomagnetic parameters during both...
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Quiet point engineering for low-noise microwave generation with soliton microcombs
Low-noise microwave signals can be efficiently generated with microresonator-based dissipative Kerr solitons (microcombs). However, the phase noise...
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The First Survey of Quiet Sun Features Observed in Hard X-Rays with NuSTAR
We present the first survey of quiet Sun features observed in hard X-rays (HXRs), using the Nuclear Spectroscopic Telescope ARray (NuSTAR), a HXR...
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Satellite Mega-Constellations and the Dark and Quiet Sky Problem
AbstractIn recent years, there have been an increasing concern in the world regarding the impact of technology on the development prospects of...
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Two-fluid numerical model of chromospheric heating and plasma outflows in a quiet-Sun
PurposeThis paper addresses long-standing solar physics problems, namely, the heating of the solar chromosphere and the origin of the solar wind. Our...
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Variability of relativistic electron flux (E > 2 MeV) during geo-magnetically quiet and disturbed days: a case study
We analyzed the relativistic electron fluxes (E > 2 MeV) during five different geomagnetic storms: moderate, intense, super-intense, ICME HILDCAA...
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Comparison Between Radio Loud and Radio Quiet Fast CMEs: A Reason for Radio Quietness
It is well known that fast CMEs are mostly associated with magnetohydrodynamic (MHD) shocks in the solar corona, forming type-II radio bursts....
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Average Subsurface Flows of Active and Quiet Regions with Large-Tile Ring-Diagram Analysis
We study large-scale subsurface flows associated with locations of high and low magnetic activity in the near-surface shear layer (NSSL). The flows...
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Explosive Events in the Quiet Sun Near and Beyond the Solar Limb Observed with the Interface Region Imaging Spectrograph (IRIS)
We study point-like explosive events (EE), characterized by emission in the far wings of spectral lines, in a quiet region near the South Pole, using I...
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On a Possible Spicule Formation Mechanism in Quiet Regions of the Sun
AbstractWe consider the gravitational energy of the material falling from the corona as a source of energy for the formation of spicules in the solar...
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Time Series Analysis of Photospheric Magnetic Parameters of Flare-Quiet Versus Flaring Active Regions: Scaling Properties of Fluctuations
Time series of photospheric magnetic parameters of solar active regions (ARs) are used to answer the question whether scaling properties of...
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Quiet-Filament Eruptions and Coronal Jets as Causes of Depressions in Microwave Radio Emission
AbstractSeveral solar events with different types of negative microwave bursts have been studied using data from different spectral ranges. The total...
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Sympathetic Quiet and Active Region Filament Eruptions
We present the observations of three sympathetic filament eruptions occurring on 19 July 2015, namely F 1 , F 2 , and F 3 . The events were observed in UV...
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Mean Solar Quiet Profiling of Geomagnetic Field H-Component for Langkawi Observatory in Solar Cycle-24
It is well known that the geomagnetic field exhibits consistent diurnal, seasonal, and solar cycle fluctuations. In this paper, the seasonal...
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Performance analysis of NeQuick2 and IRI-Plas models during quiet geomagnetic and low solar activity conditions at Thanjavur equatorial location: Preliminary results
The ionosphere’s dynamic fluctuations are a persistent challenge to satellite navigation and communication. The total electron content (TEC)...
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A Search for the Counterparts of Quiet-Sun Radio Transients in Extreme Ultraviolet Data
Nonthermal radio transients from the quiet Sun have been recently discovered and it has been hypothesized using rough calculations that they might be...
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Probing Upflowing Regions in the Quiet Sun and Coronal Holes
Recent observations from Parker Solar Probe have revealed that the solar wind has a highly variable structure. How this complex behaviour is formed...
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Quiet, Discrete Auroral Arcs: Acceleration Mechanisms
The theory of the acceleration of auroral particles is reviewed, focusing on developments in the last 15 years. We discuss elementary plasma physics...
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Radio-loud and radio-quiet CMEs: solar cycle dependency, influence on cosmic ray intensity, and geo-effectiveness
Coronal mass ejections (CMEs) largely influence the space weather and cause geomagnetic perturbations. Hence, the statistical studies pertaining to...
