Mapping the magnetic field in the solar corona through magnetoseismology
arXiv:2008.03146 · doi:10.1007/s11431-020-1706-9
Abstract
Magnetoseismology, a technique of magnetic field diagnostics based on observations of magnetohydrodynamic (MHD) waves, has been widely used to estimate the field strengths of oscillating structures in the solar corona. However, previously magnetoseismology was mostly applied to occasionally occurring oscillation events, providing an estimate of only the average field strength or one-dimensional distribution of field strength along an oscillating structure. This restriction could be eliminated if we apply magnetoseismology to the pervasive propagating transverse MHD waves discovered with the Coronal Multi-channel Polarimeter (CoMP). Using several CoMP observations of the Fe xiii 1074.7 nm and 1079.8 nm spectral lines, we obtained maps of the plasma density and wave phase speed in the corona, which allow us to map both the strength and direction of the coronal magnetic field in the plane of sky. We also examined distributions of the electron density and magnetic field strength, and compared their variations with height in the quiet Sun and active regions. Such measurements could provide critical information to advance our understanding of the Sun's magnetism and the magnetic coupling of the whole solar atmosphere.
arXiv comment13 pages, 9 figures. Sci China Tech Sci (2020)
References in corpus (43)
- Time-Distance Seismology of the Solar Corona with CoMP
- CHIANTI - an Atomic Database for Emission Lines. Paper VI: Proton Rates and Other Improvements
- CHIANTI - an atomic database for emission lines - Paper XV: Version 9, improvements for the X-ray satellite lines
- Microwave and Hard X-Ray Observations of the 2017 September 10 Solar Limb Flare
- On the nature of kink MHD waves in magnetic flux tubes
- Persistent Doppler shift oscillations observed with HINODE/EIS in the solar corona: spectroscopic signatures of Alfvenic waves and recurring upflows
- Global maps of the magnetic field in the solar corona
- Generation of Solar Spicules and Subsequent Atmospheric Heating
- Decayless low-amplitude kink oscillations: a common phenomenon in the solar corona?
- Growing transverse oscillations of a multistranded loop observed by SDO/AIA
- Measurement of magnetic field and relativistic electrons along a solar flare current sheet
- Surface Alfven waves in solar flux tubes
- On active region loops: Hinode/EIS observations
- Coronal Magnetic Field Measurement from EUV Images made by the Solar Dynamics Observatory
- The Magnetic Structure of Solar Prominence Cavities: New Observational Signature Revealed by Coronal Magnetometry
- Solar coronal magnetic fields derived using seismology techniques applied to omnipresent sunspot waves
- A basal contribution from p-modes to the Alfvénic wave flux in the Sun's corona
- A global view of velocity fluctuations in the corona below 1.3 with CoMP
- Streamer Waves Driven by Coronal Mass Ejections
- Observational Test of Coronal Magnetic Field Models I. Comparison with Potential Field Model
- A coronal seismological study with streamer waves
- Polarimetric Properties of Flux-Ropes and Sheared Arcades in Coronal Prominence Cavities
- Measuring the magnetic field of a trans-equatorial loop system using coronal seismology
- Observations of Coronal Mass Ejections with the Coronal Multichannel Polarimeter
- MHD Seismology of a Coronal Loop System by the First Two Modes of Standing Kink Waves
- Microwave Zebra Pattern Structures in the X2.2 Solar Flare on Feb 15, 2011
- Non-damping oscillations at flaring loops
- Direct Estimates of the Solar Coronal Magnetic Field Using Contemporaneous Extreme-ultraviolet, Radio, and White-light Observations
- A Coherence-Based Approach for Tracking Waves in the Solar Corona
- Simulations of prominence eruption preceded with large amplitude longitudinal oscillations and draining
- Prospects for Detecting X-ray Polarization in Blazar Jets
- Damping of Propagating Kink Waves in the Solar Corona
- Magnetic braids in eruptions of a spiral structure in the solar atmosphere
- Transverse coronal loop oscillations excited by homologous circular-ribbon flares
- Diagnosing the magnetic field structure of a coronal cavity observed during the 2017 total solar eclipse
- Using coronal seismology to estimate the magnetic field strength in a realistic coronal model
- Harmonics of Solar Radio Spikes at Metric Wavelengths
- Solar Ultraviolet Bursts in a Coordinated Observation of IRIS, Hinode and SDO
- On the Parallel and Perpendicular Propagating Motions Visible in Polar Plumes: An Incubator For (Fast) Solar Wind Acceleration?
- Assessing the Capabilities of Dynamic Coronal Seismology of Alfvénic Waves through Forward Modeling
- Coronal Magnetic Fields Derived from Simultaneous Microwave and EUV Observations and Comparison with the Potential Field Model
- Magnetohydrostatic modeling of AR11768 based on a SUNRISE/IMaX vector magnetogram
- Diagnose Physical Conditions Near the Flare Energy-release Sites from Observations of Solar Microwave Type III Bursts
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- Transient small-scale brightenings in the quiet solar corona: a model for campfires observed with Solar Orbiter
- MHD Waves in open coronal structures
- The Solar Upper Transition Region Imager (SUTRI) onboard the SATech-01 satellite
- Upflows in the upper solar atmosphere
- Observing the evolution of the Sun's global coronal magnetic field over eight months
- Decayless oscillations in solar coronal bright points
- A Statistical Study of Short-period Decayless Oscillations of Coronal Loops in an Active Region
- Traveling kink oscillations of coronal loops launched by a solar flare
- A Statistical Investigation of Decayless Oscillations in Small-scale Coronal Loops Observed by Solar Orbiter/EUI
- Solar Coronal Magnetic Fields and Sensitivity Requirements for Spectropolarimetry Channel of VELC Onboard Aditya-L1
- Application of a magnetic-field-induced transition in Fe X to solar and stellar coronal magnetic field measurements
- A statistical study of propagating MHD kink waves in the quiescent corona
- Cross-loop propagation of a quasi-periodic extreme-ultraviolet wave train triggered by successive stretching of magnetic field structures during a solar eruption
- Measurements of the magnetic field strengths at the bases of stellar coronae using the magnetic-field-induced transition theory
- 3D coupled tearing-thermal evolution in solar current sheets
- Propagating Kink Waves in an Open Coronal Magnetic Flux Tube with Gravitational Stratification: Magnetohydrodynamic Simulation and Forward Modelling
- Solar coronal magnetic field measurements using spectral lines available in Hinode/EIS observations: Strong and weak field techniques and temperature diagnostics
- Enhanced Non-Thermal Line Broadening inside Coronal Cavities above Solar Prominences revealed by Spectral Imaging CoronaGraph
- Forward Modeling of Magnetic-field Measurements at the Bases of Stellar Coronae through Extreme-Ultraviolet Spectroscopy
- Small-scale Bright Blobs Ejected from a Sunspot Light Bridge
- Global Coronal Magnetic Field Estimation Using Bayesian Inference
- Global Coronal Plasma Diagnostics Based on Multi-slit EUV Spectroscopy
- Challenges and Advances in Modeling of the Solar Atmosphere: A White Paper of Findings and Recommendations
- Non-thermal electron energization during the impulsive phase of an X9.3 flare revealed by Insight-HXMT
- Efficient and Automated Inversions of Magnetically-Sensitive Forbidden Coronal Lines: CLEDB -- The Coronal Line Emission DataBase Magnetic Field Inversion Algorithm
- Forward Modeling of Solar Coronal Magnetic Field Measurements Based on a Magnetic-field-induced Transition in Fe X
- High-Frequency Magnetohydrodynamic Waves with Substantial Energy in the Solar Polar Corona