Coronal Flux Ropes and their Interplanetary Counterparts
arXiv:1705.08912 · doi:10.1016/j.jastp.2017.06.004
Abstract
We report on a study comparing coronal flux ropes inferred from eruption data with their interplanetary counterparts constructed from in situ data. The eruption data include the source-region magnetic field, post-eruption arcades, and coronal mass ejections (CMEs). Flux ropes were fit to the interplanetary CMEs (ICMEs) considered for the 2011 and 2012 Coordinated Data Analysis Workshops (CDAWs). We computed the total reconnected flux involved in each of the associated solar eruptions and found it to be closely related to flare properties, CME kinematics, and ICME properties. By fitting flux ropes to the white-light coronagraph data, we obtained the geometric properties of the flux ropes and added magnetic properties derived from the reonnected flux. We found that the CME magnetic field in the corona is significantly higher than the ambient magnetic field at a given heliocentric distance. The radial dependence of the flux-rope magnetic field strength is faster than that of the ambient magnetic field. The magnetic field strength of the coronal flux rope is also correlated with that in interplanetary flux ropes constructed from in situ data, and with the observed peak magnetic field strength in ICMEs. The physical reason for the observed correlation between the peak field strength in MCs is the higher magnetic field content in faster coronal flux ropes and ultimately the higher reconnected flux in the eruption region. The magnetic flux ropes constructed from the eruption data and coronagraph observations provide a realistic input that can be used by various models to predict the magnetic properties of ICMEs at Earth and other destination in the heliosphere.
36 pages, 8 figures, 1 table, under review in J. Atmos. Solar-Terr. Phys. May 24, 2017
References in corpus (9)
- Anomalous Expansion of Coronal Mass Ejections during Solar Cycle 24 and its Space Weather Implications
- Major Solar Eruptions and High Energy Particle Events during Solar Cycle 24
- Structures of Interplanetary Magnetic Flux Ropes and Comparison with Their Solar Sources
- Chromosphere to 1 AU Simulation of the 2011 March 7th Event: A Comprehensive Study of Coronal Mass Ejection Propagation
- The Peculiar Behavior of Halo Coronal Mass Ejections in Solar Cycle 24
- Large Solar Energetic Particle Events Associated with Filament Eruptions Outside of Active Regions
- Relationship between EIT Post Eruption Arcades, Coronal Mass Ejections, Coronal Neutral Line and Magnetic Clouds
- Coronal Hole Influence on the Observed Structure of Interplanetary CMEs
- Topical Issue in Solar Physics: Flux-rope Structure of Coronal Mass Ejections Preface
Cited by in corpus (26)
- Statistics of coronal dimmings associated with coronal mass ejections. I. Characteristic dimming properties and flare association
- The Sun and Space Weather
- Dependence of coronal mass ejection properties on their solar source active region characteristics and associated flare reconnection flux
- Implementation and validation of the FRi3D flux rope model in EUHFORIA
- What is Unusual about the Third Largest Geomagnetic Storm of Solar Cycle 24?
- Sun-to-Earth Propagation of the 2015 June 21 Coronal Mass Ejection Revealed by Optical, EUV, and Radio Observations
- Using the Coronal Evolution to Successfully Forward Model CMEs' In Situ Magnetic Profiles
- Validation of Coronal Mass Ejection Arrival-Time Forecasts by Magnetohydrodynamic Simulations based on Interplanetary Scintillation Observations
- An Observationally Constrained Analytical Model for Predicting the Magnetic Field Vectors of ICMEs at 1 AU
- Application of a Modified Spheromak Model to Simulations of Coronal Mass Ejection in the Inner Heliosphere
- A magnetic cloud prediction model for forecasting space weather relevant properties of Earth-directed coronal mass ejections
- Ensemble simulations of the 12 July 2012 Coronal Mass Ejection with the Constant Turn Flux Rope Model
- Source of Energetic Protons in the 2014 September 1 Sustained Gamma-ray Emission Event
- Do All Interplanetary Coronal Mass Ejections Have A Magnetic Flux Rope Structure Near 1 AU?
- Improving the Arrival Time Estimates of Coronal Mass Ejections by Using Magnetohydrodynamic Ensemble Modeling, Heliospheric Imager data, and Machine Learning
- Quantitative Characterization of Magnetic Flux Rope Properties for Two Solar Eruption Events
- Near-Earth Interplanetary Coronal Mass Ejections and Their Association with DH Type II Radio Bursts During Solar Cycles 23 and 24
- Confined and eruptive catastrophes of solar magnetic flux ropes caused by mass loading and unloading
- Re-analysis of Lepping's Fitting Method for Magnetic Clouds: Lundquist Fit Reloaded
- Novel scaling laws to derive spatially resolved flare and CME parameters from sun-as-a-star observables
- Modeling Polarized Radio Sounding Observations of a Coronal Mass Ejection
- How flux feeding causes eruptions of solar magnetic flux ropes with the hyperbolic flux tube configuration?
- Coronal mass ejections as a new indicator of the active Sun
- Evolution of reconnection flux during eruption of magnetic flux ropes
- Classifying different types of solar wind plasma with uncertainty estimations using machine learning
- Geometric and magnetic properties of coronal flux ropes associated with CMEs leading to geomagnetic storms