Which Photospheric Characteristics are Most Relevant to Active-Region Coronal Mass Ejections?

Abstract

We investigate the relation between characteristics of coronal mass ejections and parameterizations of the eruptive capability of solar active regions widely used in solar flare prediction schemes. These parameters, some of which are explored for the first time, are properties related to topological features, namely, magnetic polarity inversion lines (MPILs) that indicate large amounts of stored non-potential (i.e. free) magnetic energy. We utilize the Space Weather Database of Notifications, Knowledge, Information (DONKI) and the Large Angle and Spectrometric Coronograph (LASCO) databases to find flare-associated coronal mass ejections and their kinematic characteristics while properties of MPILs are extracted from Helioseismic and Magnetic Imager (HMI) vector magnetic-field observations of active regions to extract the properties of source-region MPILs. The correlation between all properties and the characteristics of CMEs ranges from moderate to very strong. More significant correlations hold particularly for fast CMEs, which are most important in terms of adverse space-weather manifestations. Non-neutralized currents and the length of the main MPIL exhibit significantly stronger correlations than the rest of the properties. This finding supports a causal relationship between coronal mass ejections and non-neutralized electric currents in highly sheared, conspicuous MPILs. In addition, non-neutralized currents and MPIL length carry distinct, independent information as to the eruptive potential of active regions. The combined total amount of non-neutralized electric currents and the length of the main polarity inversion line, therefore, reflect more efficiently than other parameters the eruptive capacity of solar active regions and the CME kinematic characteristics stemming from these regions.

arXiv comment31 pages, 14 figures

References in corpus (28)

• An Observational Overview of Solar Flares
• The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: SHARPs -- Space-weather HMI Active Region Patches
• Solar Flare Prediction Using SDO/HMI Vector Magnetic Field Data with a Machine-Learning Algorithm
• How Many CMEs Have Flux Ropes? Deciphering the Signatures of Shocks, Flux Ropes, and Prominences in Coronagraph Observations of CMEs
• Different Power-law Indices in the Frequency Distributions of Flares with and without Coronal Mass Ejections
• Ensemble modeling of CMEs using the WSA-ENLIL+Cone model
• Forecasting Solar Flares Using Magnetogram-based Predictors and Machine Learning
• Relationship between Solar Energetic Particles and Properties of Flares and CMEs: Statistical Analysis of Solar Cycle 23 Events
• Connecting speeds, directions and arrival times of 22 coronal mass ejections from the Sun to 1 AU
• History and Development of Coronal Mass Ejections as a Key Player in Solar Terrestrial Relationship
• Predicting Coronal Mass Ejections Using Machine Learning Methods
• Distribution of Electric Currents in Solar Active Regions
• Determining the Intrinsic CME Flux Rope Type Using Remote-sensing Solar Disk Observations
• Non-neutralized Electric Current Patterns in Solar Active Regions: Origin of the Shear-Generating Lorentz Force
• Non-neutralized electric currents in solar active regions and flare productivity
• The origin of net electric currents in solar active regions
• The Occurrence and Speed of CMEs Related to Two Characteristic Evolution Patterns of Helicity Injection in Their Solar Source Regions
• Dependence of coronal mass ejection properties on their solar source active region characteristics and associated flare reconnection flux
• Statistical study of magnetic non-potential measures in confined and eruptive flares
• Magnetic Complexity in Eruptive Solar Active Regions and Associated Eruption Parameters
• Recurrent CME-like eruptions in emerging flux regions. I. On the mechanism of eruptions
• Connecting Coronal Mass Ejections to their Solar Active Region Sources: Combining Results from the HELCATS and FLARECAST Projects
• The spectroscopic imprint of the pre-eruptive configuration resulting into two major coronal mass ejections
• The nonpotentiality of coronae of solar active regions, the dynamics of the surface magnetic field, and the potential for large flares
• Testing and Improving a Set of Morphological Predictors of Flaring Activity
• Photospheric Shear Flows in Solar Active Regions and Their Relation to Flare Occurrence
• Active Region Photospheric Magnetic Properties Derived from Line-of-sight and Radial Fields
• Near-Sun Speed of CMEs and the Magnetic Non-potentiality of their Source Active Regions

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• Magnetic Flux and Magnetic Non-potentiality of Active Regions in Eruptive and Confined Solar Flares
• Toward Improved Understanding of Magnetic Fields Participating in Solar Flares: Statistical Analysis of Magnetic Field within Flare Ribbons
• The characteristics of flare- and CME-productive solar active regions
• Investigating pre-eruptive magnetic properties at the footprints of erupting magnetic flux ropes
• Properties of Flare-Imminent versus Flare-Quiet Active Regions from the Chromosphere through the Corona I: Introduction of the AIA Active Region Patches (AARPs)
• Low geo-effectiveness of fast halo CMEs related to the 12 X-class flares in 2002
• The extremely strong non-neutralized electric currents of the unique solar active region NOAA 13664
• Time Series Analysis of Photospheric Magnetic Parameters of Flare-quiet versus Flaring Active Regions: Scaling Properties of Fluctuations
• Non-Neutralized Electric Current of Active Regions Explained as a Projection Effect
• Near-continuous tracking of solar active region NOAA 13664 over three solar rotations