TIME-DISTANCE SEISMOLOGY OF THE SOLAR CORONA WITH CoMP

2009/03/11 by S. Tomczyk, Steven Tomczyk, Scott W. McIntosh · 8 citations
Physics and Astronomy · #Astro and Planetary Science #Solar and Space Plasma Dynamics #Stellar, planetary, and galactic studies #astro-ph.SR

paper · pdf · doi:10.1088/0004-637x/697/2/1384

published as Astrophys.J.697:1384-1391,2009 · In Press ApJ. 8 pages and 8 color figures

arxiv created 2009/03/11 · openalex publication_date 2009/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

We employ a sequence of Doppler images obtained with the Coronal Multi-channel Polarimeter (CoMP) instrument to perform time–distance seismology of the solar corona. We construct the first k –ω diagrams of the region. These allow us to separate outward and inward propagating waves and estimate the spatial variation of the plane-of-sky-projected phase speed, and the relative amount of outward and inward directed wave power. The disparity between outward and inward wave power and the slope of the observed power-law spectrum indicate that low-frequency Alfvénic motions suffer significant attenuation as they propagate, consistent with isotropic MHD turbulence.

Citations

• Self‐consistent Coronal Heating and Solar Wind Acceleration from Anisotropic Magnetohydrodynamic Turbulence
• Inertial-Range Spectrum of Hydromagnetic Turbulence
• Present and Future Observing Trends in Atmospheric Magnetoseismology

Cited by

• Alfvén Waves in the Solar Atmosphere
• STATISTICAL EVIDENCE FOR THE EXISTENCE OF ALFVÉNIC TURBULENCE IN SOLAR CORONAL LOOPS
• DIRECT IMAGING OF QUASI-PERIODIC FAST PROPAGATING WAVES OF ∼2000 km s –1 IN THE LOW SOLAR CORONA BY THE SOLAR DYNAMICS OBSERVATORY ATMOSPHERIC IMAGING ASSEMBLY
• PROPAGATION AND DISPERSION OF TRANSVERSE WAVE TRAINS IN MAGNETIC FLUX TUBES
• ANALYTIC APPROXIMATE SEISMOLOGY OF PROPAGATING MAGNETOHYDRODYNAMIC WAVES IN THE SOLAR CORONA
• RESONANTLY DAMPED PROPAGATING KINK WAVES IN LONGITUDINALLY STRATIFIED SOLAR WAVEGUIDES
• Multiwavelength Studies of MHD Waves in the Solar Chromosphere
• Photospheric Magnetic Evolution in the WHI Active Regions

Related

• Velocity and Density Fluctuations in the Quiet Sun Corona
• THREE-DIMENSIONAL CORONAL SLOW MODES: TOWARD THREE-DIMENSIONAL SEISMOLOGY
• Oscillations and Waves in coronal loops
• Diagnostics of the solar coronal plasmas by magnetohydrodynamic waves: Magnetohydrodynamic seismology
• Plasma motions and compressive wave energetics in the solar corona and solar wind from radio wave scattering observations