Analysis of a global Moreton wave observed on October 28, 2003

Abstract

We study the well pronounced Moreton wave that occurred in as- sociation with the X17.2 are/CME event of October 28, 2003. This Moreton wave is striking for its global propagation and two separate wave centers, which implies that two waves were launched simultane- ously. The mean velocity of the Moreton wave, tracked within different sectors of propagation direction, lies in the range of v ~ 900-1100 km/s with two sectors showing wave deceleration. The perturbation profile analysis of the wave indicates amplitude growth followed by amplitude weakening and broadening of the perturbation profile, which is con- sistent with a disturbance first driven and then evolving into a freely propagating wave. The EIT wavefront is found to lie on the same kinematical curve as the Moreton wavefronts indicating that both are different signatures of the same physical process. Bipolar coronal dim- mings are observed on the same opposite East-West edges of the active region as the Moreton wave ignition centers. The radio type II source, which is co-spatially located with the first wave front, indicates that the wave was launched from an extended source region (& 60 Mm). These findings suggest that the Moreton wave is initiated by the CME expanding flanks.

accepted to ApJ

References in corpus (1)

• Analytic modeling of the Moreton wave kinematics

Cited by in corpus (24)

• First observations of a dome-shaped large-scale coronal EUV wave
• Quasi-periodic Fast-mode Wave Trains Within a Global EUV Wave and Sequential Transverse Oscillations Detected by SDO/AIA
• On the Nature and Genesis of EUV Waves: A Synthesis of Observations from SOHO, STEREO, SDO, and Hinode
• Understanding the Physical Nature of Coronal "EIT Waves"
• Evidence for the Wave Nature of an Extreme Ultraviolet Wave Observed by the Atmospheric Imaging Assembly Onboard the Solar Dynamics Observatory
• On the detection of coronal dimmings and the extraction of their characteristic properties
• Statistical Analysis of Large-scale EUV Waves Observed by STEREO/EUVI
• On a small-scale EUV wave: the driving mechanism and the associated oscillating filament
• Solar Energetic Particles and Associated EIT Disturbances in Solar Cycle 23
• First Unambiguous Imaging of Large-Scale Quasi-Periodic Extreme-Ultraviolet Wave or Shock
• Multiwavelength study of a Solar Eruption from AR NOAA 11112: II. Large-Scale Coronal Wave and Loop Oscillation
• EUV Waves Driven by the Sudden Expansion of Transequatorial Loops Caused by Coronal Jets
• Case Study of Four Homologous Large-Scale Coronal Waves Observed on 2010 April 28 and 29
• Coronal Shock Waves, EUV waves, and their Relation to CMEs. II. Modeling MHD Shock Wave Propagation Along the Solar Surface, Using Nonlinear Geometrical Acoustics
• Relation between the 3D-geometry of the coronal wave and associated CME during the 26 April 2008 event
• Using radio triangulation to understand the origin of two subsequent type II radio bursts
• Total reflection of a flare-driven quasi-periodic EUV wave train at a coronal hole boundary
• Formation of Coronal Shock Waves
• Quantifying the relationship between Moreton-Ramsey waves and "EIT waves" using observations of 4 homologous wave events
• Effects of Coronal Density and Magnetic Field Distributions on a Global Solar EUV Wave
• Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
• Dynamic Processes of the Moreton Wave on 2014 March 29
• An extreme ultraviolet wave generating upward secondary waves in a streamer-like solar structure
• Meteospace, a New Instrument for Solar Survey at the Calern Observatory